WO2021077448A1 - New and old pavement base course joining interface treatment material and preparation method therefor - Google Patents
New and old pavement base course joining interface treatment material and preparation method therefor Download PDFInfo
- Publication number
- WO2021077448A1 WO2021077448A1 PCT/CN2019/113840 CN2019113840W WO2021077448A1 WO 2021077448 A1 WO2021077448 A1 WO 2021077448A1 CN 2019113840 W CN2019113840 W CN 2019113840W WO 2021077448 A1 WO2021077448 A1 WO 2021077448A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- parts
- rectorite
- new
- silicone
- water
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 81
- 238000002360 preparation method Methods 0.000 title claims abstract description 51
- 239000000839 emulsion Substances 0.000 claims abstract description 115
- 229920002635 polyurethane Polymers 0.000 claims abstract description 107
- 239000004814 polyurethane Substances 0.000 claims abstract description 107
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 239000004568 cement Substances 0.000 claims abstract description 32
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 239000010703 silicon Substances 0.000 claims abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract 4
- 229920001296 polysiloxane Polymers 0.000 claims description 77
- 238000003756 stirring Methods 0.000 claims description 43
- 239000008213 purified water Substances 0.000 claims description 25
- 239000011575 calcium Substances 0.000 claims description 23
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 21
- 229910052791 calcium Inorganic materials 0.000 claims description 21
- -1 polysiloxane Polymers 0.000 claims description 21
- 239000013530 defoamer Substances 0.000 claims description 20
- 239000011734 sodium Substances 0.000 claims description 20
- 229910052708 sodium Inorganic materials 0.000 claims description 20
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 19
- 239000012065 filter cake Substances 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 17
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 12
- 229920000570 polyether Polymers 0.000 claims description 12
- 229920005862 polyol Polymers 0.000 claims description 11
- 150000003077 polyols Chemical class 0.000 claims description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 10
- 239000011777 magnesium Substances 0.000 claims description 10
- 229910052749 magnesium Inorganic materials 0.000 claims description 10
- 239000003607 modifier Substances 0.000 claims description 10
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 claims description 9
- 238000005341 cation exchange Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 229920001228 polyisocyanate Polymers 0.000 claims description 9
- 239000005056 polyisocyanate Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 239000004970 Chain extender Substances 0.000 claims description 7
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 claims description 4
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 4
- 239000012948 isocyanate Substances 0.000 claims description 4
- 150000002513 isocyanates Chemical class 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- SFVFIFLLYFPGHH-UHFFFAOYSA-M stearalkonium chloride Chemical group [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SFVFIFLLYFPGHH-UHFFFAOYSA-M 0.000 claims description 4
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 claims description 4
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 3
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims 1
- 150000001335 aliphatic alkanes Chemical class 0.000 claims 1
- 239000007822 coupling agent Substances 0.000 claims 1
- XJRAOMZCVTUHFI-UHFFFAOYSA-N isocyanic acid;methane Chemical compound C.N=C=O.N=C=O XJRAOMZCVTUHFI-UHFFFAOYSA-N 0.000 claims 1
- 239000008096 xylene Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 22
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 18
- 239000011398 Portland cement Substances 0.000 description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 15
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 9
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 9
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 9
- 238000001291 vacuum drying Methods 0.000 description 8
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 7
- 239000002253 acid Substances 0.000 description 7
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 7
- 229910021538 borax Inorganic materials 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 7
- YIBPLYRWHCQZEB-UHFFFAOYSA-N formaldehyde;propan-2-one Chemical class O=C.CC(C)=O YIBPLYRWHCQZEB-UHFFFAOYSA-N 0.000 description 7
- 239000002893 slag Substances 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- 239000004328 sodium tetraborate Substances 0.000 description 7
- 235000010339 sodium tetraborate Nutrition 0.000 description 7
- KMBMQZQZBOLJHN-UHFFFAOYSA-N 2-methyloxirane;oxolane Chemical compound CC1CO1.C1CCOC1 KMBMQZQZBOLJHN-UHFFFAOYSA-N 0.000 description 6
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 6
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 229960002887 deanol Drugs 0.000 description 6
- 239000012972 dimethylethanolamine Substances 0.000 description 6
- 239000008103 glucose Substances 0.000 description 6
- 229910019142 PO4 Inorganic materials 0.000 description 5
- 150000002009 diols Chemical class 0.000 description 5
- 230000036571 hydration Effects 0.000 description 5
- 238000006703 hydration reaction Methods 0.000 description 5
- 239000004816 latex Substances 0.000 description 5
- 229920000126 latex Polymers 0.000 description 5
- 239000010452 phosphate Substances 0.000 description 5
- 229920001451 polypropylene glycol Polymers 0.000 description 5
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- 239000010881 fly ash Substances 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 4
- 235000019270 ammonium chloride Nutrition 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229920000909 polytetrahydrofuran Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- OVBFMEVBMNZIBR-UHFFFAOYSA-N 2-methylvaleric acid Chemical compound CCCC(C)C(O)=O OVBFMEVBMNZIBR-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- OPKOKAMJFNKNAS-UHFFFAOYSA-N N-methylethanolamine Chemical compound CNCCO OPKOKAMJFNKNAS-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920001273 Polyhydroxy acid Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000008121 dextrose Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000008030 superplasticizer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 150000003673 urethanes Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/40—Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
- C04B24/42—Organo-silicon compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/20—Retarders
- C04B2103/22—Set retarders
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
Definitions
- the invention relates to the field of road engineering, in particular to a treatment material for the splicing interface of new and old pavement base layers in highway reconstruction and expansion projects.
- the interface material is a key component in the splicing process of the new and old pavement base layer, and its performance and variety directly affect the quality and cost of the project.
- the commonly used interface materials are mainly two-component waterborne polymer epoxy emulsion, cement paste, and emulsified asphalt.
- the performance of the two-component waterborne polymer epoxy emulsion is unstable and is greatly affected by the mixing process.
- cement clusters will appear.
- the cement clusters will prevent the cement slurry from being fully combined when it is painted.
- the bonding of the base layer is prone to diseases such as hollowing and bubbling, which greatly reduces the bonding effect of the cement slurry; in addition, because the two-component material has a faster curing time, it usually solidifies within 1 to 2 hours to form strength.
- the splicing interface treatment of the new and old base layer is usually before the new base layer is laid.
- the new base layer After the two-component material is used for painting, the new base layer must be paved before the material is cured, that is, within 1 to 2 hours. Due to the complexity of the expansion project, the paving time of the base layer is affected by multiple factors such as mixture production, transportation, and paving equipment. The paving time is difficult to guarantee, resulting in the paving of the new base layer after the interface treatment material is solidified, which leads to the bonding of the old and new base layer The effect is poor, which affects the integrity of the expressway base after the widening.
- the cement paste has a small bond strength to the concrete interface, which results in the unsatisfactory splicing effect of the cement stabilized crushed stone base of the new and old pavement; during the freezing and thawing process, the asphaltene of the emulsified asphalt will leak out, which affects the joints.
- the bonding condition and strength is a small bond strength to the concrete interface, which results in the unsatisfactory splicing effect of the cement stabilized crushed stone base of the new and old pavement; during the freezing and thawing process, the asphaltene of the emulsified asphalt will leak out, which affects the joints. The bonding condition and strength.
- the present invention provides a new and old pavement base layer splicing interface treatment material to solve the above-mentioned problems existing in the existing base layer splicing interface materials, and aims to provide a simple preparation process, stable performance, good flexibility, and high bonding strength , Good splicing effect of new and old pavement base layer splicing interface treatment materials.
- the first object of the present invention is to provide a new and old pavement base layer splicing interface treatment material, which has stable performance, higher bonding strength, better water stability and fatigue cracking resistance, so as to ensure that the expressway is expanded
- the second purpose of the present invention is to provide a preparation method for the splicing interface treatment material of the new and old pavement base layer, the preparation method is simple, environmentally friendly, and has industrial value.
- a treatment material for the splicing interface of new and old pavement base layers includes 50-100 parts of silicone modified polyurethane emulsion, 1-3 parts of organically modified rectorite, 100-200 parts of cement, and 0.5-parts of water reducing agent. 1.5 parts, 20-50 parts of water and 0.5-2.5 parts of composite retarder.
- Organic modification of rectorite with organic modifier can improve the compatibility between rectorite and polyurethane; at the same time, the molecular chain of organic modifier is arranged in a certain way between rectorite flakes to expand The crystal plane spacing of rectorite is conducive to the intercalation/peeling reaction between polyurethane and rectorite.
- the molecular chain of polyurethane is inserted into the rectorite layer, which can comprehensively complement the excellent properties of polyurethane and rectorite and improve the material.
- the cement is a mixture of any one or more of ordinary Portland cement, slag Portland cement or fly ash Portland cement.
- the water reducing agent is any one or a mixture of polycarboxylic acid water reducing agent or sulfonated acetone formaldehyde condensate.
- the addition of polycarboxylic acid superplasticizer can improve the workability of the splicing interface treatment material, and at the same time can reduce the shrinkage of the splicing interface treatment material.
- the composite retarder is a combination of an organic retarder and an inorganic retarder, wherein the organic retarder is any one of calcium sugar, glucose or citric acid, and the inorganic retarder is phosphate, borax or Any one of calcium fluorosilicate.
- the use of composite retarder is a compound of organic and inorganic retarders, which effectively delays the setting time.
- Organic retarder with strong solid-liquid surface activity, can be adsorbed on the surface of polyurethane emulsion to form a solvent adsorption layer, which prevents latex particles from contacting and cohesive demulsification, thereby effectively delaying the demulsification and solidification of polyurethane emulsion; inorganic retarder is electrolyte Salts can ionize in the aqueous solution to bring out sodium ions, calcium ions, etc., delay the formation of cement hydration products calcium hydroxide and ettringite, thereby prolonging the initial setting time of cement.
- the use of a composite retarder can greatly extend the demulsification time of polyurethane emulsion and the initial setting time of cement, and allow sufficient time for the new base paving to ensure that the new base pavement is cured after the interface material is cured, so that the old and new bases can be bonded to form a whole. Conducive to the durability of the base after the expansion.
- the polyurethane emulsion in parts by weight, includes the following components: 90-100 parts of polyether polyol, 0-10 parts of silicone, 70-100 parts of polyisocyanate, 5-15 parts of hydrophilic chain extender, 3-7 parts of salt-forming agent, 300-500 parts of water, 0.05-0.1 parts of polyurethane emulsion defoamer.
- the polyether polyol is a polyether polyol with an average functionality of not less than 3 and an average molecular weight of about 8000. It can be polytetrahydrofuran ether glycol, tetrahydrofuran-oxypropylene ether copolymer glycol or polyoxypropylene ether two. Any one or a mixture of two kinds of alcohols.
- the organosilicon is polysiloxane, which is any one or a mixture of polymethylsiloxane, two-tailed dihydroxysiloxane, and two-terminal hydroxybutyl polydimethylsiloxane.
- the isocyanate is selected from any one of toluene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), polyphenyl polymethylene polyisocyanate (PAPI) or MDI/TDI system isocyanate.
- TDI toluene diisocyanate
- MDI diphenylmethane diisocyanate
- PAPI polyphenyl polymethylene polyisocyanate
- MDI/TDI system isocyanate MDI/TDI system isocyanate.
- the hydrophilic chain extender is any one or a mixture of sodium 1,4-butanediol-2-sulfonate or dimethylolpropionic acid.
- the process of organosilicon modified polyurethane emulsion does not need to introduce high boiling point solvents, which is green and environmentally friendly.
- the salt-forming agent is selected from any one of triethylamine, dimethylethanolamine or sodium hydroxide.
- the polyurethane emulsion defoamer is composed of mineral oil, special polyether ester and dispersant.
- the addition of defoamer in the silicone-modified polyurethane emulsion can not only quickly eliminate the bubbles generated during the preparation of the silicone-modified polyurethane emulsion, but also rupture the bubbles adsorbed at the concrete interface, which improves the density of the interface transition zone. And the role of bond strength.
- the organically modified rectorite includes 25-35 parts by weight of rectorite, 10-15 parts of organic modifier, and 500-700 parts of purified water.
- the cement is added to the organic rectorite modified polyurethane emulsion.
- the water in the silicone modified polyurethane emulsion (without additional water) is used to realize the hydration of the cement, and the cement is formed with rectorite and polyurethane after hydration Network interpenetrating multi-element composite structure;
- the -NCO group in the silicone-modified polyurethane emulsion reacts with the Ca(OH) 2 enriched in the base concrete interface to generate stable urethane and reduce the interface
- the degree of Ca(OH) 2 enrichment, the generated carbamate can also fill the pores at the concrete interface, thereby further improving the compactness and bonding strength of the interface transition zone.
- rectorite is one or a mixture of sodium-based rectorite, calcium-based rectorite, or magnesium-based rectorite.
- the organic modifier is selected from the group consisting of octadecyl dimethyl benzyl ammonium chloride, cetyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, and octadecyl trimethyl ammonium chloride. Any one or a mixture of any two of ammonium chloride or ⁇ -propyltrimethoxysilane.
- the preparation method of the treatment material for the splicing interface of the new and old pavement base layer includes the following steps:
- silicone modified polyurethane emulsion place 90-100 parts of polyether polyol, 0-10 parts of silicone, 70-100 parts of polyisocyanate, and 5-15 parts of hydrophilic chain extender at a temperature of 70 In a reactor at °C ⁇ 90°C, react for 4 ⁇ 5h under nitrogen protection to obtain silicone modified polyurethane prepolymer; mix 3 ⁇ 7 parts of salt-forming agent, 300 ⁇ 500 parts of water, 0.05 ⁇ 0.1 parts of water
- the special defoamer for polyurethane emulsion is added to the aforementioned silicone-modified polyurethane prepolymer to mix and react to obtain a silicone-modified polyurethane emulsion;
- the present invention has the following beneficial effects:
- the composite retarder used in the present invention has a wide range of raw materials, low price, and excellent retardation effect.
- the dosage of the composite retarder can be adjusted according to the needs of on-site construction to meet the requirements of the time required for construction.
- the present invention uses ultra-high molecular weight polyether polyol to prepare polyurethane modifier, which can improve the brittleness of traditional polyurethane, thereby improving the adhesion flexibility and deformation coordination of the new and old pavement base layer splicing interface treatment materials, which is beneficial to the new and old in the expansion project.
- the anti-cracking performance of the pavement base layer splicing part uses ultra-high molecular weight polyether polyol to prepare polyurethane modifier, which can improve the brittleness of traditional polyurethane, thereby improving the adhesion flexibility and deformation coordination of the new and old pavement base layer splicing interface treatment materials, which is beneficial to the new and old in the expansion project.
- the present invention uses organic silicon and organic rectorite composite modified polyurethane, which has the following advantages: 1) Silicone has many excellent properties such as weathering resistance, ozone resistance, high and low temperature resistance, and good bonding performance. It uses organic Silicon-modified polyurethane can combine the excellent properties of the two to improve the cohesiveness, high and low temperature resistance and durability of the interface treatment material of the splicing interface of the new and old pavement base. 2) The organic rectorite, the hydration product of the cement hydration and the polyurethane form a network interpenetrating multi-element composite structure, which is beneficial to improve the compactness and bonding strength of the splicing interface of the new and old pavement base layer.
- the composite modification of organic silicon and organic rectorite makes the prepared polyurethane modifier have excellent bonding performance, durability and high and low temperature resistance, so that the prepared splicing interface treatment material has better comprehensive performance , which is beneficial to the bonding of the new and old bases in the expansion project and the durability of the splicing joints of the new and old bases and prolongs the service life of the road.
- the splicing interface treatment material of the new and old pavement base layer prepared by the present invention has better bonding performance, longer curing and initial setting time, and stable performance; the splicing interface treatment material coating prepared by the present invention After brushing at the splicing interface, a polymer slurry with good bonding performance can be formed.
- the slurry film formation is continuous without obvious bubbles, and it is not easy to fall off and bulge.
- the splitting strength of cement stabilized crushed stone specimens is significantly improved after using the splicing interface treatment material prepared by the present invention.
- the preparation process of the present invention is simple, reaction conditions are easy to control, raw materials are cheap, and suitable for industrial development; no solvent is required, no pollution to the environment, and environmental protection.
- Example 1 A treatment material for the splicing interface of new and old pavement base layers and its preparation method
- a treatment material for the splicing interface of new and old pavement base layers including the following components:
- silicone modified polyurethane emulsion 50 parts of silicone modified polyurethane emulsion, 1 part of organically modified rectorite, 100 parts of ordinary Portland cement, 0.5 parts of polycarboxylic acid water reducer, 0.2 parts of sugar calcium and 0.3 parts of phosphate.
- Polyurethane emulsion in parts by weight, includes the following components:
- Organically modified rectorite in parts by weight, includes the following components:
- a preparation method of treatment material for splicing interface between new and old pavement base layers :
- silicone modified polyurethane emulsion Place 95 parts of polyether polyol, 5 parts of silicone, 70 parts of diphenylmethane diisocyanate and 5 parts of sodium 1,4-butanediol-2-sulfonate In a reactor set at 70°C, react for 5 hours under nitrogen protection to obtain silicone modified polyurethane prepolymer; add 3 parts of triethylamine, 300 parts of water and 0.05 parts of polyurethane emulsion defoamer to the above The polyorganosilicon-modified urethane prepolymer is mixed and reacted to obtain a silicone-modified polyurethane emulsion;
- Example 2 A treatment material for the splicing interface of new and old pavement base layers and its preparation method
- a treatment material for the splicing interface of new and old pavement base layers in parts by weight, including: 100 parts of silicone modified polyurethane emulsion, 3 parts of organically modified rectorite, 200 parts of slag Portland cement, and sulfonated acetone-formaldehyde condensate 1.5 parts, 1 part glucose and 0.5 parts borax.
- the silicone modified polyurethane emulsion in parts by weight, includes the following components: 92 parts of tetrahydrofuran-propylene oxide ether copolymer glycol, 8 parts of silicone, 100 parts of polyphenyl polymethylene polyisocyanate, dimethylol 15 parts of propionic acid, 7 parts of dimethylethanolamine, 500 parts of water, 0.1 part of polyurethane emulsion defoamer.
- Organically modified rectorite in parts by weight, includes the following components:
- the preparation method of the treatment material for the splicing interface of the new and old pavement base layer includes the following steps:
- silicone modified polyurethane emulsion Place 92 parts of tetrahydrofuran-propylene oxide ether copolymer diol, 8 parts of silicone, 100 parts of polyphenylpolymethylene polyisocyanate and 15 parts of dimethylolpropionic acid In a reactor set at 90°C, react for 5 hours under nitrogen protection to obtain a silicone modified polyurethane prepolymer; add 7 parts of dimethylethanolamine, 500 parts of water and 0.1 parts of polyurethane emulsion defoamer to Mixing reaction in the aforementioned silicone-modified polyurethane prepolymer to obtain a silicone-modified polyurethane emulsion;
- Example 3 A treatment material for the splicing interface of new and old pavement base layers, in parts by weight, including 75 parts of silicone modified polyurethane emulsion, 2 parts of organically modified rectorite, 150 parts of fly ash Portland cement, and less 1 part of liquid, 1 part of citric acid and 1 part of calcium fluosilicate.
- the silicone modified polyurethane emulsion in parts by weight, includes the following components: 90 parts of polyoxypropylene ether glycol, 10 parts of silicone, 90 parts of toluene diisocyanate, 1,4-butanediol-2 sulfonic acid 4 parts of sodium, 5 parts of dimethylolpropionic acid, 7 parts of sodium hydroxide, 400 parts of water and 0.075 parts of polyurethane emulsion defoamer.
- Organically modified rectorite in parts by weight, includes the following components:
- the preparation method of the treatment material for the splicing interface of the new and old pavement base layer includes the following steps:
- silicone modified polyurethane emulsion 90 parts of polyoxypropylene ether glycol, 10 parts of silicone, 90 parts of toluene diisocyanate, 4 parts of sodium 1,4-butanediol-2 sulfonate and dimethylol Place 5 parts of propyl propionic acid in a reactor set at 80°C, and react for 5 hours under nitrogen protection to obtain silicone modified polyurethane prepolymer; combine 7 parts of sodium hydroxide, 400 parts of water and polyurethane emulsion defoamer 0.075 parts are added to the aforementioned silicone-modified polyurethane prepolymer for mixing and reaction to obtain a silicone-modified polyurethane emulsion;
- Example 4 A treatment material for the splicing interface of new and old pavement base layers and its preparation method
- a treatment material for the splicing interface of new and old pavement base layers including the following components:
- silicone modified polyurethane emulsion 50 parts of silicone modified polyurethane emulsion, 1 part of organically modified rectorite, 100 parts of ordinary Portland cement, 0.5 parts of polyhydroxy acid water reducing agent, 0.2 parts of sugar calcium and 0.3 parts of phosphate.
- the silicone modified polyurethane emulsion in parts by weight, includes the following components:
- Organically modified rectorite in parts by weight, includes the following components:
- a preparation method of treatment material for splicing interface between new and old pavement base layers :
- silicone modified polyurethane emulsion 98 parts of polyether polyol, 2 parts of silicone, 70 parts of toluene diisocyanate and diphenylmethane diisocyanate mixture and 5 parts of 1,4-butanediol-2- Sodium sulfonate is placed in a reaction kettle with a temperature of 70°C to 90°C, and reacted for 4 to 5 hours under nitrogen protection to obtain a silicone modified polyurethane prepolymer; 3 parts of triethylamine, 300 parts of water and 0.05 Part of the polyurethane emulsion defoamer is added to the above-mentioned silicone-modified polyurethane prepolymer for mixing and reaction to obtain a silicone-modified polyurethane emulsion;
- Example 5 A treatment material for the splicing interface of new and old pavement base layers and its preparation method
- a treatment material for the splicing interface of new and old pavement base layers in parts by weight, including: 100 parts of silicone modified polyurethane emulsion, 3 parts of organically modified rectorite, 200 parts of slag Portland cement, and sulfonated acetone-formaldehyde condensate 1.5 parts, 1 part dextrose and 0.5 parts borax.
- the silicone modified polyurethane emulsion in parts by weight, includes the following components: 94 parts of tetrahydrofuran-propylene oxide ether copolymer diol, 6 parts of silicone, 100 parts of polyphenylpolymethylene polyisocyanate, dimethylol 15 parts of propionic acid, 7 parts of dimethylethanolamine, 500 parts of water, 0.1 part of polyurethane emulsion defoamer.
- Organically modified rectorite in parts by weight, includes the following components:
- the preparation method of the treatment material for the splicing interface of the new and old pavement base layer includes the following steps:
- silicone modified polyurethane emulsion 94 parts of tetrahydrofuran-propylene oxide ether copolymer diol, 6 parts of silicone, 100 parts of polyphenylpolymethylene polyisocyanate, 15 parts of dimethylolpropionic acid are placed In a reactor set at 90°C, react for 5 hours under nitrogen protection to obtain silicone modified polyurethane prepolymer; add 7 parts of dimethylethanolamine, 500 parts of water and 0.1 parts of polyurethane emulsion special defoamer Mixing and reacting in the aforementioned silicone-modified polyurethane prepolymer to obtain a silicone-modified polyurethane emulsion;
- Example 6 A treatment material for the splicing interface of new and old pavement base courses, in parts by weight, including 75 parts of silicone modified polyurethane emulsion, 2 parts of organically modified rectorite, 150 parts of fly ash Portland cement, and less 1 part of liquid, 1 part of citric acid and 1 part of calcium fluosilicate.
- the silicone modified polyurethane emulsion in parts by weight, includes the following components: 97 parts of polyoxypropylene ether glycol, 3 parts of silicone, 90 parts of diphenylmethane diisocyanate, 1,4-butanediol- 2 4 parts of sodium sulfonate, 5 parts of dimethylolpropionic acid, 7 parts of sodium hydroxide, 400 parts of water and 0.075 parts of polyurethane emulsion defoamer.
- Organically modified rectorite in parts by weight, includes the following components:
- the preparation method of the treatment material for the splicing interface of the new and old pavement base layer includes the following steps:
- silicone modified polyurethane emulsion 97 parts of polyoxypropylene ether glycol, 3 parts of silicone, 90 parts of diphenylmethane diisocyanate, 4 parts of 1,4-butanediol-2 sodium sulfonate, Place 5 parts of dimethylolpropionic acid in a reactor set at 80°C, and react for 5 hours under nitrogen protection to obtain silicone modified polyurethane prepolymer; combine 7 parts of sodium hydroxide, 400 parts of water, and polyurethane emulsion 0.075 parts of defoamer is added to the above-mentioned silicone-modified polyurethane prepolymer for mixing and reaction to obtain a silicone-modified polyurethane emulsion;
- Example 7 A treatment material for the splicing interface of new and old pavement base layers and its preparation method
- a treatment material for the splicing interface of new and old pavement base layers including: 100 parts of silicone modified polyurethane emulsion, 3 parts of organically modified rectorite, 200 parts of slag Portland cement, and sulfonated acetone-formaldehyde condensate 1.5 parts, 1 part glucose, 0.5 parts borax.
- Silicone modified polyurethane emulsion calculated according to mass fraction, includes the following components: 96 parts of tetrahydrofuran-propylene oxide ether copolymer diol, 4 parts of silicone, 100 parts of toluene diisocyanate, 15 parts of dimethylolpropionic acid, two 7 parts of methylethanolamine, 500 parts of water, 0.1 part of polyurethane emulsion defoamer.
- Organically modified rectorite in parts by weight, includes the following components:
- the preparation method of the treatment material for the splicing interface of the new and old pavement base layer includes the following steps:
- silicone modified polyurethane emulsion 96 parts of tetrahydrofuran-propylene oxide ether copolymer diol, 4 parts of silicone, 100 parts of toluene diisocyanate, 15 parts of dimethylolpropionic acid are placed at a temperature of 90°C In the reactor, react for 5 hours under the protection of nitrogen to obtain silicone modified polyurethane prepolymer; add 7 parts of dimethylethanolamine, 500 parts of water, and 0.1 part of polyurethane emulsion special defoamer to the above polyurethane prepolymer Medium mixing reaction to obtain silicone modified polyurethane emulsion;
- the above-mentioned new and old pavement base layer splicing interface treatment materials and epoxy latex cement slurry interface agent are jointly tested for setting time, bonding performance (adhesive pull-out strength, composite pull-out strength), durability (freeze-thaw cycle compressive strength loss Rate, freeze-thaw cycle quality loss rate).
- the above-mentioned new and old pavement base layer splicing interface treatment materials and epoxy latex cement slurry interface agent were prepared according to the mortar ratio of 1:2 to prepare cement mortar, 28d compressive and flexural strengths were measured, and the mechanical properties of the two materials were evaluated. The results are as follows:
- the treatment material provided by the present invention has a longer setting time than the epoxy latex cement interface agent, meets the construction requirements of the expansion project, and is more excellent in bonding performance and durability.
- the mechanical properties are especially flexural. It has better strength and industrial value.
Abstract
Disclosed are a new and old pavement base course joining interface treatment material and a preparation method therefor. The treatment material comprises, by weight, 50-100 parts of an organic silicon modified polyurethane emulsion, 1-3 parts of an organically modified rectorite, 100-200 parts of cement, 0.5-1.5 parts of a water-reducing agent, 20-50 parts of water and 0.5-2.5 parts of a composite retarder. The preparation method comprises the following steps: S1. preparing the organic silicon modified polyurethane emulsion, S2. preparing the organically modified rectorite, and S3. preparing the new and old pavement base course joining interface treatment material. The interface treatment material has a stable performance, a high bonding strength, and a good joining effect. The method has a simple preparation process.
Description
本发明涉及道路工程领域，尤其涉及高速公路改扩建工程一种新旧路面基层拼接界面处治材料。The invention relates to the field of road engineering, in particular to a treatment material for the splicing interface of new and old pavement base layers in highway reconstruction and expansion projects.
高速公路改扩建工程中，由于原路面通行时间较长，路基固结较为完全，而扩建路面属于新建路面结构，其工后存在明显沉降，会造成新旧路面的不均匀沉降，导致路面结构破坏，因此有效的路面拼接可避免或延缓由于沉降而对扩建工程造成的不利影响。而工程经验表明，影响水泥稳定碎石基层拼接效果的关键因素主要有两个：一是，新老水泥稳定碎石基层竖向界面粘结效果；二是，拼接处新铺水泥稳定碎石的粗集料用量、离析等。目前工程施工中还缺乏能够保证水泥稳定碎石基层拼接施工质量的有效措施，也没有相应的施工技术规范和要求。In the highway reconstruction and expansion project, due to the long running time of the original pavement, the roadbed consolidation is relatively complete, while the expanded pavement belongs to the new pavement structure, and there is obvious settlement after construction, which will cause uneven settlement of the new and old pavement, resulting in damage to the road structure. Therefore, effective pavement splicing can avoid or delay the adverse effects on the expansion project due to settlement. Engineering experience shows that there are two key factors that affect the splicing effect of cement stabilized macadam bases: one is the bonding effect of the vertical interface between the new and old cement stabilized macadam bases; the second is the effect of laying cement stabilized macadam at the splicing site. Coarse aggregate dosage, segregation, etc. At present, there is still a lack of effective measures to ensure the splicing construction quality of cement stabilized crushed stone base, and there are no corresponding construction technical specifications and requirements.
现有国内已完工的高速公路改扩建工程多采用开挖台阶与涂刷界面材料的拼接技术，提高水泥稳定碎石基层拼接效果。其中，界面材料作为新旧路面基层拼接工艺中的关键组成部分，其性能和品种的优劣，直接影响到工程的质量和成本。目前常用的界面材料以双组份水性高分子环氧乳液、水泥净浆、乳化沥青为主。Existing domestically completed highway reconstruction and expansion projects mostly adopt splicing technology of excavating steps and painting interface materials to improve the splicing effect of cement stabilized crushed stone base. Among them, the interface material is a key component in the splicing process of the new and old pavement base layer, and its performance and variety directly affect the quality and cost of the project. At present, the commonly used interface materials are mainly two-component waterborne polymer epoxy emulsion, cement paste, and emulsified asphalt.
双组份水性高分子环氧乳液性能不稳定，受拌制的影响较大，在制备水泥浆过程中搅拌不力时会出现水泥团，水泥团在涂刷时会抑制水泥浆体 不能充分的和基层粘结，易出现空鼓起泡等病害，大大降低水泥浆的粘结效果；此外，由于双组份材料固化时间较快，通常1～2小时内就固化形成强度。对于改扩建工程，新老基层拼接界面处治通常在新基层摊铺之前，采用双组分材料涂刷后，新基层必须在材料固化之前，即1～2小时内摊铺完成。由于扩建工程复杂，基层摊铺时间受到混合料生产、运输、摊铺设备等多重因素影响，摊铺时间难以保证，导致界面处治材料固化后才摊铺新基层，从而导致新旧基层拼接界面粘结效果较差，从而影响拓宽后高速公路基层的整体性。The performance of the two-component waterborne polymer epoxy emulsion is unstable and is greatly affected by the mixing process. When the mixing is not strong during the preparation of the cement slurry, cement clusters will appear. The cement clusters will prevent the cement slurry from being fully combined when it is painted. The bonding of the base layer is prone to diseases such as hollowing and bubbling, which greatly reduces the bonding effect of the cement slurry; in addition, because the two-component material has a faster curing time, it usually solidifies within 1 to 2 hours to form strength. For reconstruction and expansion projects, the splicing interface treatment of the new and old base layer is usually before the new base layer is laid. After the two-component material is used for painting, the new base layer must be paved before the material is cured, that is, within 1 to 2 hours. Due to the complexity of the expansion project, the paving time of the base layer is affected by multiple factors such as mixture production, transportation, and paving equipment. The paving time is difficult to guarantee, resulting in the paving of the new base layer after the interface treatment material is solidified, which leads to the bonding of the old and new base layer The effect is poor, which affects the integrity of the expressway base after the widening.
水泥净浆对混凝土界面的粘结强度较小，导致新旧路面水泥稳定碎石基层的拼接效果不是很理想；在冻融过程中，乳化沥青的沥青质会出现渗出的情况，影响拼缝处的黏结情况和强度。The cement paste has a small bond strength to the concrete interface, which results in the unsatisfactory splicing effect of the cement stabilized crushed stone base of the new and old pavement; during the freezing and thawing process, the asphaltene of the emulsified asphalt will leak out, which affects the joints. The bonding condition and strength.
鉴于此，本发明提供一种新旧路面基层拼接界面处治材料，用于解决现有基层拼接界面材料存在的上述问题，旨在提供一种制备工艺简单、性能稳定、柔韧性好、粘结强度大、拼接效果好的新旧路面基层拼接界面处治材料。In view of this, the present invention provides a new and old pavement base layer splicing interface treatment material to solve the above-mentioned problems existing in the existing base layer splicing interface materials, and aims to provide a simple preparation process, stable performance, good flexibility, and high bonding strength , Good splicing effect of new and old pavement base layer splicing interface treatment materials.
发明内容Summary of the invention
本发明的第一个目的是提供一种新旧路面基层拼接界面处治材料，其性能稳定，且具有较高的粘结强度、较优的水稳性能和抗疲劳开裂性能，从而确保高速公路扩建后的耐久性；本发明的第二个目的是提供一种新旧路面基层拼接界面处治材料的制备方法，该制备方法简单、环保，具有产业价值。The first object of the present invention is to provide a new and old pavement base layer splicing interface treatment material, which has stable performance, higher bonding strength, better water stability and fatigue cracking resistance, so as to ensure that the expressway is expanded The second purpose of the present invention is to provide a preparation method for the splicing interface treatment material of the new and old pavement base layer, the preparation method is simple, environmentally friendly, and has industrial value.
本发明的上述技术目的是通过以下技术方案得以实现的：The above-mentioned technical purpose of the present invention is achieved through the following technical solutions:
一种新旧路面基层拼接界面处治材料，按重量份数计，包括有机硅改性聚氨酯乳液50～100份，有机改性累托石1～3份，水泥100～200份，减水剂0.5～1.5份、水20～50份和复合缓凝剂0.5～2.5份。采用有机改性剂对累托石进行有机改性，可以改善累托石与聚氨酯之间的相容性；同时，有机改性剂的分子链在累托石片层间以一定方式排列，扩大累托石的晶面间距，有利于聚氨酯与累托石发生插层/剥离反应，聚氨酯分子链***到累托石片层中，可将聚氨酯与累托石的优异性能进行综合互补，提升材料的粘结性能、耐热性能、耐腐蚀性能及力学性能。A treatment material for the splicing interface of new and old pavement base layers. In parts by weight, it includes 50-100 parts of silicone modified polyurethane emulsion, 1-3 parts of organically modified rectorite, 100-200 parts of cement, and 0.5-parts of water reducing agent. 1.5 parts, 20-50 parts of water and 0.5-2.5 parts of composite retarder. Organic modification of rectorite with organic modifier can improve the compatibility between rectorite and polyurethane; at the same time, the molecular chain of organic modifier is arranged in a certain way between rectorite flakes to expand The crystal plane spacing of rectorite is conducive to the intercalation/peeling reaction between polyurethane and rectorite. The molecular chain of polyurethane is inserted into the rectorite layer, which can comprehensively complement the excellent properties of polyurethane and rectorite and improve the material. The bonding performance, heat resistance, corrosion resistance and mechanical properties of the product.
进一步的，水泥是普通硅酸盐水泥、矿渣硅酸盐水泥或粉煤灰硅酸盐水泥中的任意一种或多种的混合物。Further, the cement is a mixture of any one or more of ordinary Portland cement, slag Portland cement or fly ash Portland cement.
进一步的，减水剂是聚羧酸减水剂或磺化丙酮甲醛缩合物中的任意一种或多种的混合物。聚羧酸高效减水剂的加入可改善拼接界面处治材料的和易性，同时可减小拼接界面处治材料的收缩。Further, the water reducing agent is any one or a mixture of polycarboxylic acid water reducing agent or sulfonated acetone formaldehyde condensate. The addition of polycarboxylic acid superplasticizer can improve the workability of the splicing interface treatment material, and at the same time can reduce the shrinkage of the splicing interface treatment material.
进一步的，复合缓凝剂为有机缓凝剂和无机缓凝剂复配使用，其中有机缓凝剂为糖钙、葡萄糖或柠檬酸中的任意一种，无机缓凝剂为磷酸盐、硼砂或氟硅酸钙中的任意一种。采用复合缓凝剂，为有机、无机缓凝剂复配，有效延缓凝结时间。有机缓凝剂，具有较强的固-液表面活性，能够吸附在聚氨酯乳液表面形成溶剂吸附层，阻碍胶乳颗粒接触和凝聚破乳，从而有效延缓聚氨酯乳液破乳固化；无机缓凝剂为电解质盐类，可以在水溶液中电离带出钠离子、钙离子等，延缓水泥水化产物氢氧化钙以及钙矾石 的形成，从而延长水泥初凝时间。采用复合缓凝剂能够大幅度延长聚氨酯乳液破乳时间以及水泥初凝时间，给新基层摊铺预留充足时间，确保新基层摊铺在界面材料固化之后，便于新旧基层粘结形成一个整体，有利于扩建后基层的耐久性。Further, the composite retarder is a combination of an organic retarder and an inorganic retarder, wherein the organic retarder is any one of calcium sugar, glucose or citric acid, and the inorganic retarder is phosphate, borax or Any one of calcium fluorosilicate. The use of composite retarder is a compound of organic and inorganic retarders, which effectively delays the setting time. Organic retarder, with strong solid-liquid surface activity, can be adsorbed on the surface of polyurethane emulsion to form a solvent adsorption layer, which prevents latex particles from contacting and cohesive demulsification, thereby effectively delaying the demulsification and solidification of polyurethane emulsion; inorganic retarder is electrolyte Salts can ionize in the aqueous solution to bring out sodium ions, calcium ions, etc., delay the formation of cement hydration products calcium hydroxide and ettringite, thereby prolonging the initial setting time of cement. The use of a composite retarder can greatly extend the demulsification time of polyurethane emulsion and the initial setting time of cement, and allow sufficient time for the new base paving to ensure that the new base pavement is cured after the interface material is cured, so that the old and new bases can be bonded to form a whole. Conducive to the durability of the base after the expansion.
进一步的，聚氨酯乳液，按照重量份数计，包括如下组分：聚醚多元醇90～100份，有机硅0～10份，多异氰酸酯70～100份，亲水扩链剂5～15份、成盐剂3～7份，水300～500份、聚氨酯乳液消泡剂0.05～0.1份。Furthermore, the polyurethane emulsion, in parts by weight, includes the following components: 90-100 parts of polyether polyol, 0-10 parts of silicone, 70-100 parts of polyisocyanate, 5-15 parts of hydrophilic chain extender, 3-7 parts of salt-forming agent, 300-500 parts of water, 0.05-0.1 parts of polyurethane emulsion defoamer.
进一步的，聚醚多元醇是平均官能度不小于3，平均分子量为8000左右的聚醚多元醇，可为聚四氢呋喃醚二元醇、四氢呋喃-氧化丙烯醚共聚二元醇或聚氧化丙烯醚二元醇中的任意一种或两种混合物。Further, the polyether polyol is a polyether polyol with an average functionality of not less than 3 and an average molecular weight of about 8000. It can be polytetrahydrofuran ether glycol, tetrahydrofuran-oxypropylene ether copolymer glycol or polyoxypropylene ether two. Any one or a mixture of two kinds of alcohols.
进一步的，有机硅为聚硅氧烷，是聚甲基硅氧烷、双尾型二羟基硅氧烷、二端羟丁基聚二甲基硅氧烷的任意一种或两种混合物。Further, the organosilicon is polysiloxane, which is any one or a mixture of polymethylsiloxane, two-tailed dihydroxysiloxane, and two-terminal hydroxybutyl polydimethylsiloxane.
进一步的，异氰酸酯选自甲苯二异氰酸酯(TDI)、二苯基甲烷二异氰酸酯(MDI)、多苯基多亚甲基多异氰酸酯(PAPI)或MDI/TDI体系异氰酸酯中的任意一种。Further, the isocyanate is selected from any one of toluene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), polyphenyl polymethylene polyisocyanate (PAPI) or MDI/TDI system isocyanate.
进一步的，亲水扩链剂是1，4-丁二醇-2-磺酸钠或二羟甲基丙酸中的任意一种或两种混合物。在合成的有机硅改性聚氨酯预聚体中添加亲水性扩链剂，在有机硅改性聚氨酯预聚体上引入亲水基团，实现有机硅改性聚氨酯在水中的均匀分散，在制备有机硅改性聚氨酯乳液的过程中不需要引入高沸点溶剂，绿色环保。Further, the hydrophilic chain extender is any one or a mixture of sodium 1,4-butanediol-2-sulfonate or dimethylolpropionic acid. Add a hydrophilic chain extender to the synthetic silicone-modified polyurethane prepolymer, and introduce hydrophilic groups on the silicone-modified polyurethane prepolymer to achieve uniform dispersion of the silicone-modified polyurethane in water. The process of organosilicon modified polyurethane emulsion does not need to introduce high boiling point solvents, which is green and environmentally friendly.
进一步的，成盐剂选自三乙胺、二甲基乙醇胺或氢氧化钠中的任意一 种。Further, the salt-forming agent is selected from any one of triethylamine, dimethylethanolamine or sodium hydroxide.
进一步的，聚氨酯乳液消泡剂由矿物油、特种聚醚酯和分散剂等组成。有机硅改性聚氨酯乳液中消泡剂的加入，不仅能快速消除有机硅改性聚氨酯乳液制备过程中产生的气泡，还能使吸附在混凝土界面处的气泡破裂，具有提高界面过渡区的致密性和粘结强度的作用。Furthermore, the polyurethane emulsion defoamer is composed of mineral oil, special polyether ester and dispersant. The addition of defoamer in the silicone-modified polyurethane emulsion can not only quickly eliminate the bubbles generated during the preparation of the silicone-modified polyurethane emulsion, but also rupture the bubbles adsorbed at the concrete interface, which improves the density of the interface transition zone. And the role of bond strength.
进一步的，有机改性累托石，按照重量份数计，包括累托石25～35份，有机改性剂10～15份，纯净水500～700份。将水泥加入到有机累托石改性聚氨酯乳液中，一方面，利用有机硅改性聚氨酯乳液中的水(无需额外加水)实现水泥的水化，且水泥水化后与累托石、聚氨酯形成网络互穿的多元复合结构；另一方面，有机硅改性聚氨酯乳液中的-NCO基团与基层混凝土界面富集的Ca(OH)
2反应，生成性能稳定的氨基甲酸酯，降低界面处Ca(OH)
2富集程度，生成的氨基甲酸酯还能填充混凝土界面处的孔隙，从而进一步提高界面过渡区的致密性和粘结强度。
Furthermore, the organically modified rectorite includes 25-35 parts by weight of rectorite, 10-15 parts of organic modifier, and 500-700 parts of purified water. The cement is added to the organic rectorite modified polyurethane emulsion. On the one hand, the water in the silicone modified polyurethane emulsion (without additional water) is used to realize the hydration of the cement, and the cement is formed with rectorite and polyurethane after hydration Network interpenetrating multi-element composite structure; on the other hand, the -NCO group in the silicone-modified polyurethane emulsion reacts with the Ca(OH) 2 enriched in the base concrete interface to generate stable urethane and reduce the interface The degree of Ca(OH) 2 enrichment, the generated carbamate can also fill the pores at the concrete interface, thereby further improving the compactness and bonding strength of the interface transition zone.
进一步的，累托石是钠基累托石、钙基累托石或镁基累托石中的一种或几种的混合物。Further, rectorite is one or a mixture of sodium-based rectorite, calcium-based rectorite, or magnesium-based rectorite.
进一步的，有机改性剂选自十八烷基二甲基苄基氯化铵、十六烷基三甲基氯化铵、十六烷基三甲基溴化铵、十八烷基三甲基氯化铵或γ-丙基三甲氧基硅烷中的任意一种或任意两种的混合物。Further, the organic modifier is selected from the group consisting of octadecyl dimethyl benzyl ammonium chloride, cetyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, and octadecyl trimethyl ammonium chloride. Any one or a mixture of any two of ammonium chloride or γ-propyltrimethoxysilane.
进一步的，新旧路面基层拼接界面处治材料的制备方法包括如下步骤：Further, the preparation method of the treatment material for the splicing interface of the new and old pavement base layer includes the following steps:
S1.制备有机硅改性聚氨酯乳液：将90～100份的聚醚多元醇、0～10份有机硅、70～100份多异氰酸酯、5～15份亲水扩链剂置于温度设置为70℃～ 90℃的反应釜中，氮气保护条件下反应4～5h，得到有机硅改性聚氨酯预聚体；将3～7份的成盐剂、300～500份的水、0.05～0.1份的聚氨酯乳液专用消泡剂加入到上述有机硅改性聚氨酯预聚体中混合反应，得到有机硅改性聚氨酯乳液；S1. Preparation of silicone modified polyurethane emulsion: place 90-100 parts of polyether polyol, 0-10 parts of silicone, 70-100 parts of polyisocyanate, and 5-15 parts of hydrophilic chain extender at a temperature of 70 In a reactor at ℃～90℃, react for 4～5h under nitrogen protection to obtain silicone modified polyurethane prepolymer; mix 3～7 parts of salt-forming agent, 300～500 parts of water, 0.05～0.1 parts of water The special defoamer for polyurethane emulsion is added to the aforementioned silicone-modified polyurethane prepolymer to mix and react to obtain a silicone-modified polyurethane emulsion;
S2.制备有机改性累托石：将25～35份阳离子交换容量为90mmol/100g的累托石加入500～700份的纯净水中，在75℃～85℃条件下搅拌20～25min，使累托石分散均匀，得到累托石和水的均相体系；将10～15份的有机改性剂加入50～15份的纯净水中，搅拌均匀，然后加入到上述累托石和水的均相体系中，在75℃～85℃条件下搅拌2～4h，得到有机改性累托石乳液；用真空泵对上述有机改性累托石乳液进行抽滤，得到滤饼，滤饼用纯净水洗涤，重复4～6次，然后将滤饼置于80～100℃的真空干燥箱中充分干燥，研磨成粉，过200～300目筛，得到有机改性累托石；S2. Preparation of organically modified rectorite: add 25-35 parts of rectorite with a cation exchange capacity of 90mmol/100g into 500-700 parts of purified water, stir at 75℃～85℃ for 20～25min, make it accumulate The tropite is evenly dispersed to obtain a homogeneous system of rectorite and water; add 10-15 parts of organic modifier to 50-15 parts of purified water, stir evenly, and then add to the above-mentioned homogeneous system of rectorite and water , Stir at 75℃～85℃ for 2～4h to obtain the organic modified rectorite emulsion; use a vacuum pump to suction and filter the above organic modified rectorite emulsion to obtain a filter cake, which is washed with pure water, repeat 4-6 times, then the filter cake is fully dried in a vacuum drying oven at 80-100°C, ground into powder, and passed through a 200-300 mesh sieve to obtain organically modified rectorite;
S3.制备新旧路面基层拼接界面处治材料：将1～3份的有机改性累托石缓慢的加入到50～100份的有机硅聚氨酯乳液中，搅拌15～20min，得到有机累托石改性有机硅聚氨酯乳液；再将制备好的有机累托石改性有机硅聚氨酯乳液、20～50份的水、0.5～1.5份的减水剂和0.5～2.5份的复合缓凝剂混合搅拌均匀，最后加入100～200份水泥继续搅拌2～5min即可得到新旧路面阶层拼接界面处治材料。S3. Preparation of new and old pavement base layer splicing interface treatment materials: slowly add 1 to 3 parts of organically modified rectorite to 50-100 parts of silicone polyurethane emulsion, and stir for 15 to 20 minutes to obtain organic rectorite modified Silicone polyurethane emulsion; then mix and stir the prepared organic rectorite modified silicone polyurethane emulsion, 20-50 parts of water, 0.5-1.5 parts of water reducing agent and 0.5-2.5 parts of composite retarder. Finally, add 100 to 200 parts of cement and continue to mix for 2 to 5 minutes to obtain the interface treatment material for the splicing of new and old pavement levels.
综上所述，本发明具有以下有益效果：In summary, the present invention has the following beneficial effects:
1.本发明所用的复合缓凝剂原材料广泛、价格低廉，具有优异的缓凝效果，能根据现场施工需要调整复合缓凝剂用量，达到满足施工所需时间 的要求。1. The composite retarder used in the present invention has a wide range of raw materials, low price, and excellent retardation effect. The dosage of the composite retarder can be adjusted according to the needs of on-site construction to meet the requirements of the time required for construction.
2.本发明采用超高分子量聚醚多元醇制备聚氨酯改性剂，能够改善传统聚氨酯的脆性，从而提升的新旧路面基层拼接界面处治材料粘柔韧性以及变形协调性，有利于扩建工程中的新旧路面基层拼接部位的抗开裂性能。2. The present invention uses ultra-high molecular weight polyether polyol to prepare polyurethane modifier, which can improve the brittleness of traditional polyurethane, thereby improving the adhesion flexibility and deformation coordination of the new and old pavement base layer splicing interface treatment materials, which is beneficial to the new and old in the expansion project. The anti-cracking performance of the pavement base layer splicing part.
3.本发明采用有机硅和有机累托石复合改性聚氨酯，具有如下优点：1)有机硅具有耐气候老化、耐臭氧、耐高低温性、粘结性能良好等多项优异性能，利用有机硅改性聚氨酯，可以综合两者的优异性能，从而提升新旧路面基层拼接界面处治材料的粘结性、耐高低温性以及耐久性。2)而有机累托石与水泥水化后水化产物及聚氨酯形成网络互穿的多元复合结构，有利于提高新旧路面基层拼接界面部位的致密性和粘结强度。综合可知，采用有机硅和有机累托石复合改性，使得制备的聚氨酯改性剂具有优异的粘结性能、耐久性和耐高低温性，从而制备的拼接界面处治材料具有较好的综合性能，有利于扩建工程中新旧基层的粘结以及新旧基层拼接结合部位的耐久性，延长道路使用寿命。3. The present invention uses organic silicon and organic rectorite composite modified polyurethane, which has the following advantages: 1) Silicone has many excellent properties such as weathering resistance, ozone resistance, high and low temperature resistance, and good bonding performance. It uses organic Silicon-modified polyurethane can combine the excellent properties of the two to improve the cohesiveness, high and low temperature resistance and durability of the interface treatment material of the splicing interface of the new and old pavement base. 2) The organic rectorite, the hydration product of the cement hydration and the polyurethane form a network interpenetrating multi-element composite structure, which is beneficial to improve the compactness and bonding strength of the splicing interface of the new and old pavement base layer. It can be seen from the general that the composite modification of organic silicon and organic rectorite makes the prepared polyurethane modifier have excellent bonding performance, durability and high and low temperature resistance, so that the prepared splicing interface treatment material has better comprehensive performance , Which is beneficial to the bonding of the new and old bases in the expansion project and the durability of the splicing joints of the new and old bases and prolongs the service life of the road.
4.与环氧胶乳界面剂相比，本发明制得的新旧路面基层拼接界面处治材料粘结性能更好，固化初凝时间较长，且性能稳定；本发明制得的拼接界面处治材料涂刷在拼接界面后可形成粘结性能良好的聚合物浆体，浆体成膜连续、无明显气泡产生，不易脱落和鼓包。经过比对试验，使用本发明制得的拼接界面处治材料后水泥稳定碎石试件的劈裂强度得到显著提升。4. Compared with the epoxy latex interface agent, the splicing interface treatment material of the new and old pavement base layer prepared by the present invention has better bonding performance, longer curing and initial setting time, and stable performance; the splicing interface treatment material coating prepared by the present invention After brushing at the splicing interface, a polymer slurry with good bonding performance can be formed. The slurry film formation is continuous without obvious bubbles, and it is not easy to fall off and bulge. After comparison tests, the splitting strength of cement stabilized crushed stone specimens is significantly improved after using the splicing interface treatment material prepared by the present invention.
5.本发明的制备工艺简单，反应条件易于控制，原料便宜，适宜工业 化发展；无需使用溶剂，对环境无污染，绿色环保。5. The preparation process of the present invention is simple, reaction conditions are easy to control, raw materials are cheap, and suitable for industrial development; no solvent is required, no pollution to the environment, and environmental protection.
为了使本发明的上述和其他目的、特征、优点能更明显易懂，下下文特举出较佳实施例。In order to make the above and other objectives, features, and advantages of the present invention more obvious and understandable, preferred embodiments are listed below.
实施例1：一种新旧路面基层拼接界面处治材料及其制备方法Example 1: A treatment material for the splicing interface of new and old pavement base layers and its preparation method
一种新旧路面基层拼接界面处治材料，按照重量份数计，包括如下组分：A treatment material for the splicing interface of new and old pavement base layers, calculated in parts by weight, including the following components:
有机硅改性聚氨酯乳液50份，有机改性累托石1份，普通硅酸盐水泥100份，聚羧酸减水剂0.5份、糖钙0.2份和磷酸盐0.3份。50 parts of silicone modified polyurethane emulsion, 1 part of organically modified rectorite, 100 parts of ordinary Portland cement, 0.5 parts of polycarboxylic acid water reducer, 0.2 parts of sugar calcium and 0.3 parts of phosphate.
聚氨酯乳液，按照重量份数计，包括如下组分：Polyurethane emulsion, in parts by weight, includes the following components:
聚四氢呋喃醚二元醇95份，有机硅5份，二苯基甲烷二异氰酸酯70份，1,4-丁二醇-2-磺酸钠5份、三乙胺3份，水300份、聚氨酯乳液消泡剂0.05份。95 parts of polytetrahydrofuran ether glycol, 5 parts of silicone, 70 parts of diphenylmethane diisocyanate, 5 parts of sodium 1,4-butanediol-2-sulfonate, 3 parts of triethylamine, 300 parts of water, polyurethane 0.05 parts of emulsion defoamer.
有机改性累托石，按照重量份数计，包括如下组分：Organically modified rectorite, in parts by weight, includes the following components:
钠基累托石25份，十八烷基二甲基苄基氯化铵10份和水500份。25 parts of sodium rectorite, 10 parts of octadecyl dimethyl benzyl ammonium chloride and 500 parts of water.
一种新旧路面基层拼接界面处治材料的制备方法：A preparation method of treatment material for splicing interface between new and old pavement base layers:
S1.制备有机硅改性聚氨酯乳液：将95份的聚醚多元醇、5份有机硅、70份二苯基甲烷二异氰酸酯和5份1,4-丁二醇-2-磺酸钠置于温度设置为70℃的反应釜中，氮气保护条件下反应5h，得到有机硅改性聚氨酯预聚体；将3份的三乙胺、300份水和0.05份的聚氨酯乳液消泡剂加入到上述聚有机硅改性氨酯预聚体中混合反应，得到有机硅改性聚氨酯乳液；S1. Preparation of silicone modified polyurethane emulsion: Place 95 parts of polyether polyol, 5 parts of silicone, 70 parts of diphenylmethane diisocyanate and 5 parts of sodium 1,4-butanediol-2-sulfonate In a reactor set at 70℃, react for 5 hours under nitrogen protection to obtain silicone modified polyurethane prepolymer; add 3 parts of triethylamine, 300 parts of water and 0.05 parts of polyurethane emulsion defoamer to the above The polyorganosilicon-modified urethane prepolymer is mixed and reacted to obtain a silicone-modified polyurethane emulsion;
S2.制备有机改性累托石：将25份阳离子交换容量为90mmol/100g的钠基累托石加入500份的纯净水中，在75℃条件下搅拌20min，使钠基累托石分散均匀，得到钠基累托石和水的均相体系；将10份十八烷基二甲基苄基氯化铵加入5份的纯净水中，搅拌均匀，然后加入到上述累托石和水的均相体系中，在75℃条件下搅拌2h，得到有机改性累托石乳液；用真空泵对上述有机改性累托石乳液进行抽滤，得到滤饼，滤饼用纯净水洗涤，重复4～6次，然后将滤饼置于80℃的真空干燥箱中充分干燥，研磨成粉，过200～300目筛，得到有机改性累托石；S2. Preparation of organically modified rectorite: add 25 parts of sodium-based rectorite with a cation exchange capacity of 90mmol/100g to 500 parts of purified water, and stir at 75°C for 20 minutes to make the sodium-based rectorite evenly dispersed. Obtain a homogeneous system of sodium rectorite and water; add 10 parts of octadecyl dimethyl benzyl ammonium chloride to 5 parts of purified water, stir evenly, and then add to the above homogeneous system of rectorite and water , Stir at 75°C for 2h to obtain an organic modified rectorite emulsion; suction and filter the above organic modified rectorite emulsion with a vacuum pump to obtain a filter cake, which is washed with purified water, repeated 4-6 times, Then the filter cake is fully dried in a vacuum drying oven at 80°C, ground into powder, and passed through a 200-300 mesh sieve to obtain organically modified rectorite;
S3.制备新旧路面基层拼接界面处治材料：将1份的有机改性累托石缓慢的加入到50份的有机硅改性聚氨酯乳液中，搅拌15min，得到有机累托石改性有机硅聚氨酯乳液；再将20份的水、0.5份的聚羧酸减水剂、0.2份糖钙和0.3份磷酸盐加入上述有机累托石改性聚氨酯乳液中，搅拌1min，最后加入100份普通硅酸盐水泥继续搅拌3min即可得到新旧道路拼接界面处治材料。S3. Preparation of new and old pavement base layer splicing interface treatment materials: slowly add 1 part of organically modified rectorite to 50 parts of silicone modified polyurethane emulsion, and stir for 15 minutes to obtain organic rectorite modified silicone polyurethane emulsion ; Then add 20 parts of water, 0.5 parts of polycarboxylic acid water reducing agent, 0.2 parts of sugar calcium and 0.3 parts of phosphate into the above organic rectorite modified polyurethane emulsion, stir for 1 min, and finally add 100 parts of ordinary silicate The cement can be mixed for 3 minutes to obtain the treatment material for the splicing interface of the new and old roads.
实施例2：一种新旧路面基层拼接界面处治材料及其制备方法Example 2: A treatment material for the splicing interface of new and old pavement base layers and its preparation method
一种新旧路面基层拼接界面处治材料，按重量份数计，包括：有机硅改性聚氨酯乳液100份，有机改性累托石3份，矿渣硅酸盐水泥200份，磺化丙酮甲醛缩合物1.5份、葡萄糖1份和硼砂0.5份。A treatment material for the splicing interface of new and old pavement base layers, in parts by weight, including: 100 parts of silicone modified polyurethane emulsion, 3 parts of organically modified rectorite, 200 parts of slag Portland cement, and sulfonated acetone-formaldehyde condensate 1.5 parts, 1 part glucose and 0.5 parts borax.
有机硅改性聚氨酯乳液，按照重量份数计，包括如下组分：四氢呋喃-氧化丙烯醚共聚二元醇92份，有机硅8份，多苯基多亚甲基多异氰酸酯100份，二羟甲基丙酸15份、二甲基乙醇胺7份，水500份、聚氨酯乳液消泡 剂0.1份。The silicone modified polyurethane emulsion, in parts by weight, includes the following components: 92 parts of tetrahydrofuran-propylene oxide ether copolymer glycol, 8 parts of silicone, 100 parts of polyphenyl polymethylene polyisocyanate, dimethylol 15 parts of propionic acid, 7 parts of dimethylethanolamine, 500 parts of water, 0.1 part of polyurethane emulsion defoamer.
有机改性累托石，按照重量份数计，包括如下组分：Organically modified rectorite, in parts by weight, includes the following components:
钙基累托石35份，十六烷基三甲基苄基氯化铵15份和水700份。35 parts of calcium rectorite, 15 parts of cetyltrimethylbenzyl ammonium chloride and 700 parts of water.
新旧路面基层拼接界面处治材料的制备方法包括如下步骤：The preparation method of the treatment material for the splicing interface of the new and old pavement base layer includes the following steps:
S1.制备有机硅改性聚氨酯乳液：将92份四氢呋喃-氧化丙烯醚共聚二元醇、8份有机硅、100份多苯基多亚甲基多异氰酸酯和15份二羟甲基丙酸置于温度设置为90℃的反应釜中，氮气保护条件下反应5h，得到有机硅改性聚氨酯预聚体；将7份二甲基乙醇胺、500份的水和0.1份的聚氨酯乳液消泡剂加入到上述有机硅改性聚氨酯预聚体中混合反应，得到有机硅改性聚氨酯乳液；S1. Preparation of silicone modified polyurethane emulsion: Place 92 parts of tetrahydrofuran-propylene oxide ether copolymer diol, 8 parts of silicone, 100 parts of polyphenylpolymethylene polyisocyanate and 15 parts of dimethylolpropionic acid In a reactor set at 90℃, react for 5 hours under nitrogen protection to obtain a silicone modified polyurethane prepolymer; add 7 parts of dimethylethanolamine, 500 parts of water and 0.1 parts of polyurethane emulsion defoamer to Mixing reaction in the aforementioned silicone-modified polyurethane prepolymer to obtain a silicone-modified polyurethane emulsion;
S2.制备有机改性累托石：将35份阳离子交换容量为90mmol/100g的钙基累托石加入650份的纯净水中，在85℃条件下搅拌25min，使钙基累托石分散均匀，得到钙基累托石和水的均相体系；将5份的十六烷基三甲基氯化铵加入15份的纯净水中，搅拌均匀，然后加入到上述累托石和水的均相体系中，在85℃条件下搅拌4h，得到有机改性累托石乳液；用真空泵对上述有机改性累托石乳液进行抽滤，得到滤饼，滤饼用纯净水洗涤，重复4～6次，然后将滤饼置于80～100℃的真空干燥箱中充分干燥，研磨成粉，过200～300目筛，得到有机改性累托石；S2. Preparation of organically modified rectorite: add 35 parts of calcium-based rectorite with a cation exchange capacity of 90mmol/100g to 650 parts of purified water, and stir at 85°C for 25 minutes to make the calcium-based rectorite evenly dispersed. Obtain a homogeneous system of calcium-based rectorite and water; add 5 parts of cetyltrimethylammonium chloride to 15 parts of purified water, stir evenly, and then add to the above-mentioned homogeneous system of rectorite and water, Stir at 85°C for 4 hours to obtain an organic modified rectorite emulsion; suction and filter the above organic modified rectorite emulsion with a vacuum pump to obtain a filter cake, which is washed with purified water, repeated 4-6 times, and then Place the filter cake in a vacuum drying oven at 80-100°C to fully dry it, grind it into powder, and pass through a 200-300 mesh sieve to obtain organically modified rectorite;
S3.制备新旧路面基层拼接界面处治材料：将3份的有机改性累托石缓慢的加入到100份的有机硅改性聚氨酯乳液中，搅拌20min，得到有机累托石改性有机硅聚氨酯乳液；再将50份的水、1.5份磺化丙酮甲醛缩合物、 1.5份葡萄糖和1份硼砂加入上述有机累托石改性聚氨酯乳液中，搅拌1min，最后加入200份的矿渣水泥继续搅拌4min即可得到新旧路面阶层拼接界面处治材料。S3. Preparation of new and old pavement base layer splicing interface treatment materials: slowly add 3 parts of organically modified rectorite to 100 parts of silicone modified polyurethane emulsion and stir for 20 minutes to obtain organic rectorite modified silicone polyurethane emulsion ; Then add 50 parts of water, 1.5 parts of sulfonated acetone formaldehyde condensate, 1.5 parts of glucose and 1 part of borax to the above organic rectorite modified polyurethane emulsion, stir for 1 min, and finally add 200 parts of slag cement and continue to stir for 4 min. The splicing interface treatment materials of new and old pavement layers can be obtained.
实施例3.一种新旧路面基层拼接界面处治材料，按重量份数计，包括有机硅改性聚氨酯乳液75份，有机改性累托石2份，粉煤灰硅酸盐水泥150份，减水剂1份、1份柠檬酸和1份氟硅酸钙。Example 3. A treatment material for the splicing interface of new and old pavement base layers, in parts by weight, including 75 parts of silicone modified polyurethane emulsion, 2 parts of organically modified rectorite, 150 parts of fly ash Portland cement, and less 1 part of liquid, 1 part of citric acid and 1 part of calcium fluosilicate.
有机硅改性聚氨酯乳液，按照重量份数计，包括如下组分：聚氧化丙烯醚二元醇90份、10份有机硅、甲苯二异氰酸酯90份、1,4-丁二醇-2磺酸钠4份、二羟甲基丙酸5份、氢氧化钠7份、水400份和聚氨酯乳液消泡剂0.075份。The silicone modified polyurethane emulsion, in parts by weight, includes the following components: 90 parts of polyoxypropylene ether glycol, 10 parts of silicone, 90 parts of toluene diisocyanate, 1,4-butanediol-2 sulfonic acid 4 parts of sodium, 5 parts of dimethylolpropionic acid, 7 parts of sodium hydroxide, 400 parts of water and 0.075 parts of polyurethane emulsion defoamer.
有机改性累托石，按照重量份数计，包括如下组分：Organically modified rectorite, in parts by weight, includes the following components:
镁基累托石30份，十六烷基三甲基溴化15份和水400份。30 parts of magnesium-based rectorite, 15 parts of cetyltrimethyl bromide and 400 parts of water.
新旧路面基层拼接界面处治材料的制备方法包括如下步骤：The preparation method of the treatment material for the splicing interface of the new and old pavement base layer includes the following steps:
S1.制备有机硅改性聚氨酯乳液：将90份聚氧化丙烯醚二元醇、10份有机硅、甲苯二异氰酸酯90份、1,4-丁二醇-2磺酸钠4份和二羟甲基丙酸5份置于温度设置为80℃的反应釜中，氮气保护条件下反应5h，得到有机硅改性聚氨酯预聚体；将氢氧化钠7份、水400份和聚氨酯乳液消泡剂0.075份加入到上述有机硅改性聚氨酯预聚体中混合反应，得到有机硅改性聚氨酯乳液；S1. Preparation of silicone modified polyurethane emulsion: 90 parts of polyoxypropylene ether glycol, 10 parts of silicone, 90 parts of toluene diisocyanate, 4 parts of sodium 1,4-butanediol-2 sulfonate and dimethylol Place 5 parts of propyl propionic acid in a reactor set at 80℃, and react for 5 hours under nitrogen protection to obtain silicone modified polyurethane prepolymer; combine 7 parts of sodium hydroxide, 400 parts of water and polyurethane emulsion defoamer 0.075 parts are added to the aforementioned silicone-modified polyurethane prepolymer for mixing and reaction to obtain a silicone-modified polyurethane emulsion;
S2.制备有机改性累托石：将30份阳离子交换容量为90mmol/100g的镁基累托石加入700份的纯净水中，在80℃条件下搅拌22min，使镁基累 托石分散均匀，得到镁基累托石和水的均相体系；将十六烷基三甲基溴化15份加入15份的纯净水中，搅拌均匀，然后加入到上述累托石和水的均相体系中，在80℃条件下搅拌3h，得到有机改性累托石乳液；用真空泵对上述有机改性累托石乳液进行抽滤，得到滤饼，滤饼用纯净水洗涤，重复4～6次，然后将滤饼置于90℃的真空干燥箱中充分干燥，研磨成粉，过200～300目筛，得到有机改性累托石；S2. Preparation of organically modified rectorite: Add 30 parts of magnesium-based rectorite with a cation exchange capacity of 90mmol/100g to 700 parts of purified water, and stir at 80°C for 22 minutes to make the magnesium-based rectorite evenly dispersed. Obtain a homogeneous system of magnesium-based rectorite and water; add 15 parts of cetyltrimethyl bromide to 15 parts of purified water, stir evenly, and then add to the above-mentioned homogeneous system of rectorite and water. Stir at ℃ for 3 hours to obtain an organic modified rectorite emulsion; use a vacuum pump to suction and filter the above organic modified rectorite emulsion to obtain a filter cake. The filter cake is washed with purified water and repeated 4-6 times. The cake is fully dried in a vacuum drying oven at 90°C, ground into powder, and passed through a 200-300 mesh sieve to obtain organically modified rectorite;
S3.制备新旧路面基层拼接界面处治材料：将2份的有机改性累托石缓慢的加入到75份的有机硅改性聚氨酯乳液中，搅拌15～20min，得到有机累托石改性有机硅聚氨酯乳液；再将40份水、1份聚羧酸减水剂、1份柠檬酸和1份氟硅酸钙加入上述有机累托石改性聚氨酯乳液中搅拌1.5min，最后加入150份粉煤灰硅酸盐水泥继续搅拌4min即可得到新旧路面阶层拼接界面处治材料。S3. Preparation of new and old pavement base layer splicing interface treatment materials: slowly add 2 parts of organically modified rectorite to 75 parts of silicone modified polyurethane emulsion and stir for 15-20 minutes to obtain organic rectorite modified silicone Polyurethane emulsion; then add 40 parts of water, 1 part of polycarboxylic acid water reducing agent, 1 part of citric acid and 1 part of calcium fluorosilicate into the above organic rectorite modified polyurethane emulsion, stir for 1.5min, and finally add 150 parts of pulverized coal The gray Portland cement continues to mix for 4 minutes to obtain the treatment material for the splicing interface of the new and old pavement layers.
实施例4.一种新旧路面基层拼接界面处治材料及其制备方法Example 4. A treatment material for the splicing interface of new and old pavement base layers and its preparation method
一种新旧路面基层拼接界面处治材料，按照重量份数计，包括如下组分：A treatment material for the splicing interface of new and old pavement base layers, calculated in parts by weight, including the following components:
有机硅改性聚氨酯乳液50份，有机改性累托石1份，普通硅酸盐水泥100份，聚羟酸减水剂0.5份、糖钙0.2份和磷酸盐0.3份。50 parts of silicone modified polyurethane emulsion, 1 part of organically modified rectorite, 100 parts of ordinary Portland cement, 0.5 parts of polyhydroxy acid water reducing agent, 0.2 parts of sugar calcium and 0.3 parts of phosphate.
有机硅改性聚氨酯乳液，按照重量份数计，包括如下组分：The silicone modified polyurethane emulsion, in parts by weight, includes the following components:
聚四氢呋喃醚二元醇98份、2份有机硅、甲苯二异氰酸酯和二苯基甲烷二异氰酸酯混合物70份、1,4-丁二醇-2-磺酸钠5份、三乙胺3份、水300份、聚氨酯乳液消泡剂0.05份。98 parts of polytetrahydrofuran ether glycol, 2 parts of silicone, 70 parts of a mixture of toluene diisocyanate and diphenylmethane diisocyanate, 5 parts of sodium 1,4-butanediol-2-sulfonate, 3 parts of triethylamine, 300 parts of water, 0.05 parts of polyurethane emulsion defoamer.
有机改性累托石，按照重量份数计，包括如下组分：Organically modified rectorite, in parts by weight, includes the following components:
钠基累托石25份，十八烷基三甲基氯化铵10份和水500份。25 parts of sodium rectorite, 10 parts of octadecyl trimethyl ammonium chloride and 500 parts of water.
一种新旧路面基层拼接界面处治材料的制备方法：A preparation method of treatment material for splicing interface between new and old pavement base layers:
S1.制备有机硅改性聚氨酯乳液：将98份的聚醚多元醇、2份有机硅、70份甲苯二异氰酸酯和二苯基甲烷二异氰酸酯混合物和5份1,4-丁二醇-2-磺酸钠置于温度设置为70℃～90℃的反应釜中，氮气保护条件下反应4～5h，得到有机硅改性聚氨酯预聚体；将3份的三乙胺、300份水和0.05份的聚氨酯乳液消泡剂加入到上述有机硅改性聚氨酯预聚体中混合反应，得到有机硅改性聚氨酯乳液；S1. Preparation of silicone modified polyurethane emulsion: 98 parts of polyether polyol, 2 parts of silicone, 70 parts of toluene diisocyanate and diphenylmethane diisocyanate mixture and 5 parts of 1,4-butanediol-2- Sodium sulfonate is placed in a reaction kettle with a temperature of 70°C to 90°C, and reacted for 4 to 5 hours under nitrogen protection to obtain a silicone modified polyurethane prepolymer; 3 parts of triethylamine, 300 parts of water and 0.05 Part of the polyurethane emulsion defoamer is added to the above-mentioned silicone-modified polyurethane prepolymer for mixing and reaction to obtain a silicone-modified polyurethane emulsion;
S2.制备有机改性累托石：将25份阳离子交换容量为90mmol/100g的钠基累托石加入450份的纯净水中，在75℃条件下搅拌20min，使钠基累托石分散均匀，得到钠基累托石和水的均相体系；将10份十八烷基三甲基氯化铵加入5份的纯净水中，搅拌均匀，然后加入到上述累托石和水的均相体系中，在75℃条件下搅拌2h，得到有机改性累托石乳液；用真空泵对上述有机改性累托石乳液进行抽滤，得到滤饼，滤饼用纯净水洗涤，重复4～6次，然后将滤饼置于80℃的真空干燥箱中充分干燥，研磨成粉，过200～300目筛，得到有机改性累托石；S2. Preparation of organically modified rectorite: add 25 parts of sodium-based rectorite with a cation exchange capacity of 90mmol/100g to 450 parts of purified water, and stir at 75°C for 20 minutes to make the sodium-based rectorite evenly dispersed. Obtain a homogeneous system of sodium rectorite and water; add 10 parts of octadecyl trimethyl ammonium chloride to 5 parts of purified water, stir evenly, and then add to the above homogeneous system of rectorite and water. Stir at 75°C for 2 hours to obtain an organic modified rectorite emulsion; use a vacuum pump to suction and filter the above organic modified rectorite emulsion to obtain a filter cake. The filter cake is washed with purified water and repeated 4 to 6 times. The filter cake is fully dried in a vacuum drying oven at 80°C, ground into powder, and passed through a 200-300 mesh sieve to obtain organically modified rectorite;
S3.制备新旧路面基层拼接界面处治材料：将1份的有机改性累托石缓慢的加入到50份的有机硅改性聚氨酯乳液中，搅拌15min，得到有机累托石改性有机硅聚氨酯乳液；再将100份普通硅酸盐水泥、0.5份的聚羧酸减水剂、0.2份糖钙和0.3份磷酸盐加入上述有机累托石改性聚氨酯乳液中， 室温搅拌3min即可得到新旧道路拼接界面处治材料。S3. Preparation of new and old pavement base layer splicing interface treatment materials: slowly add 1 part of organically modified rectorite to 50 parts of silicone modified polyurethane emulsion, and stir for 15 minutes to obtain organic rectorite modified silicone polyurethane emulsion ; Then 100 parts of ordinary Portland cement, 0.5 parts of polycarboxylic acid water reducing agent, 0.2 parts of sugar calcium and 0.3 parts of phosphate are added to the above organic rectorite modified polyurethane emulsion, and stirred at room temperature for 3 minutes to obtain new and old roads The splicing interface treatment material.
实施例5.一种新旧路面基层拼接界面处治材料及其制备方法Example 5. A treatment material for the splicing interface of new and old pavement base layers and its preparation method
一种新旧路面基层拼接界面处治材料，按重量份数计，包括：有机硅改性聚氨酯乳液100份，有机改性累托石3份，矿渣硅酸盐水泥200份，磺化丙酮甲醛缩合物1.5份、葡糖糖1份和硼砂0.5份。A treatment material for the splicing interface of new and old pavement base layers, in parts by weight, including: 100 parts of silicone modified polyurethane emulsion, 3 parts of organically modified rectorite, 200 parts of slag Portland cement, and sulfonated acetone-formaldehyde condensate 1.5 parts, 1 part dextrose and 0.5 parts borax.
有机硅改性聚氨酯乳液，按照重量份数计，包括如下组分：四氢呋喃-氧化丙烯醚共聚二元醇94份，有机硅6份、多苯基多亚甲基多异氰酸酯100份，二羟甲基丙酸15份、二甲基乙醇胺7份，水500份、聚氨酯乳液消泡剂0.1份。The silicone modified polyurethane emulsion, in parts by weight, includes the following components: 94 parts of tetrahydrofuran-propylene oxide ether copolymer diol, 6 parts of silicone, 100 parts of polyphenylpolymethylene polyisocyanate, dimethylol 15 parts of propionic acid, 7 parts of dimethylethanolamine, 500 parts of water, 0.1 part of polyurethane emulsion defoamer.
有机改性累托石，按照重量份数计，包括如下组分：Organically modified rectorite, in parts by weight, includes the following components:
钙基累托石35份，γ-丙基三甲氧基硅烷15份，水700份。35 parts of calcium-based rectorite, 15 parts of γ-propyltrimethoxysilane, 700 parts of water.
新旧路面基层拼接界面处治材料的制备方法包括如下步骤：The preparation method of the treatment material for the splicing interface of the new and old pavement base layer includes the following steps:
S1.制备有机硅改性聚氨酯乳液：将94份四氢呋喃-氧化丙烯醚共聚二元醇、6份有机硅、100份多苯基多亚甲基多异氰酸酯、15份二羟甲基丙酸置于温度设置为90℃的反应釜中，氮气保护条件下反应5h，得到有机硅改性聚氨酯预聚体；将7份二甲基乙醇胺、500份的水和0.1份的聚氨酯乳液专消泡剂加入到上述有机硅改性聚氨酯预聚体中混合反应，得到有机硅改性聚氨酯乳液；S1. Preparation of silicone modified polyurethane emulsion: 94 parts of tetrahydrofuran-propylene oxide ether copolymer diol, 6 parts of silicone, 100 parts of polyphenylpolymethylene polyisocyanate, 15 parts of dimethylolpropionic acid are placed In a reactor set at 90℃, react for 5 hours under nitrogen protection to obtain silicone modified polyurethane prepolymer; add 7 parts of dimethylethanolamine, 500 parts of water and 0.1 parts of polyurethane emulsion special defoamer Mixing and reacting in the aforementioned silicone-modified polyurethane prepolymer to obtain a silicone-modified polyurethane emulsion;
S2.制备有机改性累托石：将35份阳离子交换容量为90mmol/100g的钙基累托石加入650份的纯净水中，在85℃条件下搅拌25min，使钙基累托石分散均匀，得到钙基累托石和水的均相体系；将5份的γ-丙基三甲氧 基硅烷加入15份的纯净水中，搅拌均匀，然后加入到上述累托石和水的均相体系中，在85℃条件下搅拌4h，得到有机改性累托石乳液；用真空泵对上述有机改性累托石乳液进行抽滤，得到滤饼，滤饼用纯净水洗涤，重复4～6次，然后将滤饼置于80～100℃的真空干燥箱中充分干燥，研磨成粉，过200～300目筛，得到有机改性累托石；S2. Preparation of organically modified rectorite: add 35 parts of calcium-based rectorite with a cation exchange capacity of 90mmol/100g to 650 parts of purified water, and stir at 85°C for 25 minutes to make the calcium-based rectorite evenly dispersed. Obtain a homogeneous system of calcium-based rectorite and water; add 5 parts of γ-propyltrimethoxysilane to 15 parts of purified water, stir evenly, and then add to the above-mentioned homogeneous system of rectorite and water. Stir for 4 hours at ℃ to obtain an organic modified rectorite emulsion; use a vacuum pump to suction and filter the above organic modified rectorite emulsion to obtain a filter cake. The filter cake is washed with purified water and repeated 4 to 6 times. The cake is fully dried in a vacuum drying oven at 80-100°C, ground into powder, and passed through a 200-300 mesh sieve to obtain organically modified rectorite;
S3.制备新旧路面基层拼接界面处治材料：将3份的有机改性累托石缓慢的加入到100份的有机硅改性聚氨酯乳液中，搅拌20min，得到有机累托石改性有机硅聚氨酯乳液；再将200份矿渣硅酸盐水泥、1.5份磺化丙酮甲醛缩合物、1.5份葡萄糖和1份硼砂加入上述有机累托石改性聚氨酯乳液中，室温搅拌3～5min即可得到新旧路面阶层拼接界面处治材料。S3. Preparation of new and old pavement base layer splicing interface treatment materials: slowly add 3 parts of organically modified rectorite to 100 parts of silicone modified polyurethane emulsion and stir for 20 minutes to obtain organic rectorite modified silicone polyurethane emulsion ; Then 200 parts of slag Portland cement, 1.5 parts of sulfonated acetone formaldehyde condensate, 1.5 parts of glucose and 1 part of borax are added to the above organic rectorite modified polyurethane emulsion, and stirred at room temperature for 3 to 5 minutes to get the new and old pavement levels The splicing interface treatment material.
实施例6.一种新旧路面基层拼接界面处治材料，按重量份数计，包括有机硅改性聚氨酯乳液75份，有机改性累托石2份，粉煤灰硅酸盐水泥150份，减水剂1份、1份柠檬酸和1份氟硅酸钙。Example 6. A treatment material for the splicing interface of new and old pavement base courses, in parts by weight, including 75 parts of silicone modified polyurethane emulsion, 2 parts of organically modified rectorite, 150 parts of fly ash Portland cement, and less 1 part of liquid, 1 part of citric acid and 1 part of calcium fluosilicate.
有机硅改性聚氨酯乳液，按照重量份数计，包括如下组分：聚氧化丙烯醚二元醇97份、有机硅3份、二苯基甲烷二异氰酸酯90份、1,4-丁二醇-2磺酸钠4份、二羟甲基丙酸5份、氢氧化钠7份、水400份和聚氨酯乳液消泡剂0.075份。The silicone modified polyurethane emulsion, in parts by weight, includes the following components: 97 parts of polyoxypropylene ether glycol, 3 parts of silicone, 90 parts of diphenylmethane diisocyanate, 1,4-butanediol- 2 4 parts of sodium sulfonate, 5 parts of dimethylolpropionic acid, 7 parts of sodium hydroxide, 400 parts of water and 0.075 parts of polyurethane emulsion defoamer.
有机改性累托石，按照重量份数计，包括如下组分：Organically modified rectorite, in parts by weight, includes the following components:
镁基累托石30份，十六烷基三甲基溴化15份和水400份。30 parts of magnesium-based rectorite, 15 parts of cetyltrimethyl bromide and 400 parts of water.
新旧路面基层拼接界面处治材料的制备方法包括如下步骤：The preparation method of the treatment material for the splicing interface of the new and old pavement base layer includes the following steps:
S1.制备有机硅改性聚氨酯乳液：将97份聚氧化丙烯醚二元醇、3份有 机硅、二苯基甲烷二异氰酸酯90份、1,4-丁二醇-2磺酸钠4份、二羟甲基丙酸5份置于温度设置为80℃的反应釜中，氮气保护条件下反应5h，得到有机硅改性聚氨酯预聚体；将氢氧化钠7份、水400份、聚氨酯乳液消泡剂0.075份加入到上述有机硅改性聚氨酯预聚体中混合反应，得到有机硅改性聚氨酯乳液；S1. Preparation of silicone modified polyurethane emulsion: 97 parts of polyoxypropylene ether glycol, 3 parts of silicone, 90 parts of diphenylmethane diisocyanate, 4 parts of 1,4-butanediol-2 sodium sulfonate, Place 5 parts of dimethylolpropionic acid in a reactor set at 80℃, and react for 5 hours under nitrogen protection to obtain silicone modified polyurethane prepolymer; combine 7 parts of sodium hydroxide, 400 parts of water, and polyurethane emulsion 0.075 parts of defoamer is added to the above-mentioned silicone-modified polyurethane prepolymer for mixing and reaction to obtain a silicone-modified polyurethane emulsion;
S2.制备有机改性累托石：将39份阳离子交换容量为90mmol/100g的镁基累托石加入700份的纯净水中，在80℃条件下搅拌22min，使镁基累托石分散均匀，得到镁基累托石和水的均相体系；将十六烷基三甲基溴化15份加入15份的纯净水中，搅拌均匀，然后加入到上述累托石和水的均相体系中，在80℃条件下搅拌3h，得到有机改性累托石乳液；用真空泵对上述有机改性累托石乳液进行抽滤，得到滤饼，滤饼用纯净水洗涤，重复4～6次，然后将滤饼置于90℃的真空干燥箱中充分干燥，研磨成粉，过200～300目筛，得到有机改性累托石；S2. Preparation of organically modified rectorite: Add 39 parts of magnesium-based rectorite with a cation exchange capacity of 90mmol/100g to 700 parts of purified water, and stir at 80°C for 22 minutes to make the magnesium-based rectorite evenly dispersed. Obtain a homogeneous system of magnesium-based rectorite and water; add 15 parts of cetyltrimethyl bromide to 15 parts of purified water, stir evenly, and then add to the above-mentioned homogeneous system of rectorite and water. Stir at ℃ for 3 hours to obtain an organic modified rectorite emulsion; use a vacuum pump to suction and filter the above organic modified rectorite emulsion to obtain a filter cake. The filter cake is washed with purified water and repeated 4-6 times. The cake is fully dried in a vacuum drying oven at 90°C, ground into powder, and passed through a 200-300 mesh sieve to obtain organically modified rectorite;
S3.制备新旧路面基层拼接界面处治材料：将2份的有机改性累托石缓慢的加入到75份的有机硅改性聚氨酯乳液中，搅拌15～20min，得到有机累托石改性有机硅聚氨酯乳液；再将35份水、1份聚羧酸减水剂、1份柠檬酸和1份氟硅酸钙加入上述有机累托石改性聚氨酯乳液中搅拌1min，最后加入150份粉煤灰硅酸盐水泥继续搅拌5min即可得到新旧路面阶层拼接界面处治材料。S3. Preparation of new and old pavement base layer splicing interface treatment materials: slowly add 2 parts of organically modified rectorite to 75 parts of silicone modified polyurethane emulsion and stir for 15-20 minutes to obtain organic rectorite modified silicone Polyurethane emulsion; then add 35 parts of water, 1 part of polycarboxylic acid water reducing agent, 1 part of citric acid and 1 part of calcium fluorosilicate into the above organic rectorite modified polyurethane emulsion, stir for 1 minute, and finally add 150 parts of fly ash Portland cement continues to mix for 5 minutes to obtain the treatment material for the splicing interface of the new and old pavement layers.
实施例7.一种新旧路面基层拼接界面处治材料及其制备方法Example 7. A treatment material for the splicing interface of new and old pavement base layers and its preparation method
一种新旧路面基层拼接界面处治材料，按重量份数计，包括：有机硅 改性聚氨酯乳液100份，有机改性累托石3份，矿渣硅酸盐水泥200份，磺化丙酮甲醛缩合物1.5份、葡萄糖1份，硼砂0.5份。A treatment material for the splicing interface of new and old pavement base layers, in parts by weight, including: 100 parts of silicone modified polyurethane emulsion, 3 parts of organically modified rectorite, 200 parts of slag Portland cement, and sulfonated acetone-formaldehyde condensate 1.5 parts, 1 part glucose, 0.5 parts borax.
有机硅改性聚氨酯乳液，按照质量分数计算，包括如下组分：四氢呋喃-氧化丙烯醚共聚二元醇96份，有机硅4份，甲苯二异氰酸酯100份，二羟甲基丙酸15份、二甲基乙醇胺7份，水500份、聚氨酯乳液消泡剂0.1份。Silicone modified polyurethane emulsion, calculated according to mass fraction, includes the following components: 96 parts of tetrahydrofuran-propylene oxide ether copolymer diol, 4 parts of silicone, 100 parts of toluene diisocyanate, 15 parts of dimethylolpropionic acid, two 7 parts of methylethanolamine, 500 parts of water, 0.1 part of polyurethane emulsion defoamer.
有机改性累托石，按照重量份数计，包括如下组分：Organically modified rectorite, in parts by weight, includes the following components:
钙基累托石35份，十六烷基三甲基苄基氯化铵15份，水700份。35 parts of calcium rectorite, 15 parts of cetyltrimethylbenzyl ammonium chloride, 700 parts of water.
新旧路面基层拼接界面处治材料的制备方法包括如下步骤：The preparation method of the treatment material for the splicing interface of the new and old pavement base layer includes the following steps:
S1.制备有机硅改性聚氨酯乳液：将96份四氢呋喃-氧化丙烯醚共聚二元醇、4份有机硅、100份甲苯二异氰酸酯、15份二羟甲基丙酸置于温度设置为90℃的反应釜中，氮气保护条件下反应5h，得到有机硅改性聚氨酯预聚体；将7份二甲基乙醇胺、500份的水、0.1份的聚氨酯乳液专消泡剂加入到上述聚氨酯预聚体中混合反应，得到有机硅改性聚氨酯乳液；S1. Preparation of silicone modified polyurethane emulsion: 96 parts of tetrahydrofuran-propylene oxide ether copolymer diol, 4 parts of silicone, 100 parts of toluene diisocyanate, 15 parts of dimethylolpropionic acid are placed at a temperature of 90°C In the reactor, react for 5 hours under the protection of nitrogen to obtain silicone modified polyurethane prepolymer; add 7 parts of dimethylethanolamine, 500 parts of water, and 0.1 part of polyurethane emulsion special defoamer to the above polyurethane prepolymer Medium mixing reaction to obtain silicone modified polyurethane emulsion;
S2.制备有机改性累托石：将35份阳离子交换容量为90mmol/100g的钙基累托石加入650份的纯净水中，在85℃条件下搅拌25min，使钙基累托石分散均匀，得到钙基累托石和水的均相体系；将5份的十六烷基三甲基氯化铵加入15份的纯净水中，搅拌均匀，然后加入到上述累托石和水的均相体系中，在85℃条件下搅拌4h，得到有机改性累托石乳液；用真空泵对上述有机改性累托石乳液进行抽滤，得到滤饼，滤饼用纯净水洗涤，重复4～6次，然后将滤饼置于80～100℃的真空干燥箱中充分干燥，研磨成 粉，过200～300目筛，得到有机改性累托石；S2. Preparation of organically modified rectorite: add 35 parts of calcium-based rectorite with a cation exchange capacity of 90mmol/100g to 650 parts of purified water, and stir at 85°C for 25 minutes to make the calcium-based rectorite evenly dispersed. Obtain a homogeneous system of calcium-based rectorite and water; add 5 parts of cetyltrimethylammonium chloride to 15 parts of purified water, stir evenly, and then add to the above-mentioned homogeneous system of rectorite and water, Stir at 85°C for 4 hours to obtain an organic modified rectorite emulsion; suction and filter the above organic modified rectorite emulsion with a vacuum pump to obtain a filter cake, which is washed with purified water, repeated 4-6 times, and then Place the filter cake in a vacuum drying oven at 80-100°C to fully dry it, grind it into powder, and pass through a 200-300 mesh sieve to obtain organically modified rectorite;
S3.制备新旧路面基层拼接界面处治材料：将3份的有机改性累托石缓慢的加入到100份的有机硅改性聚氨酯乳液中，搅拌20min，得到有机累托石改性有机硅聚氨酯乳液；再将45份水、1.5份磺化丙酮甲醛缩合物、1.5份葡萄糖和1份硼砂加入上述有机累托石改性聚氨酯乳液中搅拌1min，最后加入200份矿渣硅酸盐水泥继续搅拌4min即可得到新旧路面基层拼接界面处治材料。S3. Preparation of new and old pavement base layer splicing interface treatment materials: slowly add 3 parts of organically modified rectorite to 100 parts of silicone modified polyurethane emulsion and stir for 20 minutes to obtain organic rectorite modified silicone polyurethane emulsion ; Then 45 parts of water, 1.5 parts of sulfonated acetone formaldehyde condensate, 1.5 parts of glucose and 1 part of borax were added to the above organic rectorite modified polyurethane emulsion and stirred for 1 min, and finally 200 parts of slag Portland cement were added and stirred for 4 min. The splicing interface treatment materials of the new and old pavement base can be obtained.
将上述的新旧路面基层拼接界面处治材料和环氧胶乳水泥浆界面剂共同测试凝结时间、粘结性能(附着力拉拔强度、复合件拉拔强度)、耐久性(冻融循环抗压强度损失率、冻融循环质量损失率)。将上述的新旧路面基层拼接界面处治材料和环氧胶乳水泥浆界面剂按照胶砂比1:2制备水泥砂浆，测定28d抗压和抗折强度，评价两种材料的力学性能，其结果如下：The above-mentioned new and old pavement base layer splicing interface treatment materials and epoxy latex cement slurry interface agent are jointly tested for setting time, bonding performance (adhesive pull-out strength, composite pull-out strength), durability (freeze-thaw cycle compressive strength loss Rate, freeze-thaw cycle quality loss rate). The above-mentioned new and old pavement base layer splicing interface treatment materials and epoxy latex cement slurry interface agent were prepared according to the mortar ratio of 1:2 to prepare cement mortar, 28d compressive and flexural strengths were measured, and the mechanical properties of the two materials were evaluated. The results are as follows:
各项性能测试结果Various performance test results
根据性能测试结果可知，本发明提供的处治材料与环氧胶乳水泥界面剂相比，凝结时间延长，满足扩建工程施工要求，在粘结性能和耐久性方面都更优异，力学性能尤其是抗折强度更好，具有产业价值。According to the performance test results, the treatment material provided by the present invention has a longer setting time than the epoxy latex cement interface agent, meets the construction requirements of the expansion project, and is more excellent in bonding performance and durability. The mechanical properties are especially flexural. It has better strength and industrial value.
本具体实施例仅仅是对本发明的解释，其并不是对本发明的限制，本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改，但只要在本发明的权利要求范围内都受到专利法的保护。This specific embodiment is only an explanation of the present invention, and is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contribution as needed, but as long as the rights of the present invention The scope of the requirements is protected by the patent law.
Claims (10)
- 一种新旧路面基层拼接界面处治材料，其特征在于，按重量份数计，包括有机硅改性聚氨酯乳液50～100份，有机改性累托石1～3份，水泥100～200份，减水剂0.5～1.5份、水20～50份和复合缓凝剂0.5～2.5份。A material for treating the splicing interface of new and old pavement base layers, which is characterized in that, in parts by weight, it comprises 50-100 parts of organic silicon modified polyurethane emulsion, 1-3 parts of organically modified rectorite, and 100-200 parts of cement. 0.5 to 1.5 parts of water, 20 to 50 parts of water and 0.5 to 2.5 parts of composite retarder.
- 根据权利要求1所述的一种新旧路面基层拼接界面处治材料，其特征在于，所述有机硅改性聚氨酯乳液，按照重量份数计，包括如下组分：聚醚多元醇90～100份、有机硅0～10份，异氰酸酯70～100份、亲水扩链剂5～15份、成盐剂3～7份、水300～500份、聚氨酯乳液消泡剂0.05～0.1份。The interface treatment material for splicing new and old pavement base layers according to claim 1, wherein the silicone modified polyurethane emulsion, in parts by weight, comprises the following components: 90-100 parts of polyether polyol, 0-10 parts of organic silicon, 70-100 parts of isocyanate, 5-15 parts of hydrophilic chain extender, 3-7 parts of salt-forming agent, 300-500 parts of water, 0.05-0.1 parts of polyurethane emulsion defoamer.
- 根据权利要求2所述的一种新旧路面基层拼接界面处治材料，其特征在于，所述聚醚多元醇是分子量为8000左右的超高分子量聚醚多元醇,使得聚氨酯乳液具有较好的柔韧性。The splicing interface treatment material for new and old pavement base layers according to claim 2, wherein the polyether polyol is an ultra-high molecular weight polyether polyol with a molecular weight of about 8000, so that the polyurethane emulsion has better flexibility .
- 根据权利要求2所述的一种新旧路面基层拼接界面处治材料，其特征在于，所述有机硅为聚硅氧烷，聚硅氧烷是聚甲基硅氧烷、双尾型二羟基硅氧烷、二端羟丁基聚二甲基硅氧烷的任意一种或两种混合物。The interface treatment material for the splicing of new and old pavement base layers according to claim 2, wherein the silicone is polysiloxane, and the polysiloxane is polymethylsiloxane, two-tailed dihydroxy silicone Any one or a mixture of alkane and two-terminal hydroxybutyl polydimethylsiloxane.
- 根据权利要求2所述的一种新旧路面基层拼接界面处治材料，其特征在于，所述异氰酸酯为二甲苯甲烷二异氰酸酯或者是多亚甲基多苯基多异氰酸酯的任意一种或两种混合物。The new and old pavement base layer splicing interface treatment material according to claim 2, wherein the isocyanate is xylene methane diisocyanate or any one or a mixture of polymethylene polyphenyl polyisocyanate.
- 根据权利要求2所述的一种新旧路面基层拼接界面处治材料，其特征在于，所述亲水扩链剂是1，4-丁二醇-2-磺酸钠或二羟甲基丙酸中的任意一种或两种混合物。The splicing interface treatment material for new and old pavement base layers according to claim 2, wherein the hydrophilic chain extender is sodium 1,4-butanediol-2-sulfonate or dimethylolpropionic acid. Any one or a mixture of two.
- 根据权利要求1所述的新旧路面基层拼接界面处治材料，其特征在 于，所述有机改性累托石，按照重量份数计，包括累托石25～35份，有机改性剂10～15份，纯净水500～700份。The new and old pavement base layer splicing interface treatment material according to claim 1, wherein the organically modified rectorite includes 25 to 35 parts of rectorite and 10 to 15 parts by weight of the organic modifier. Servings, 500-700 servings of purified water.
- 根据权利要求7所述的新旧路面基层拼接界面处治材料，其特征在于，所述累托石是钠基累托石、钙基累托石或镁基累托石中的一种或几种的混合物。The new and old pavement base layer splicing interface treatment material according to claim 7, wherein the rectorite is one or more of sodium-based rectorite, calcium-based rectorite, or magnesium-based rectorite mixture.
- 根据权利要求7所述的新旧路面基层拼接界面处治材料，其特征在于，所述有机改性剂选自十八烷基二甲基苄基氯化铵、十六烷基三甲基氯化铵、十六烷基三甲基溴化铵、十八烷基三甲基氯化铵或γ-丙基三甲氧基硅烷中的一种或任意两种的混合物。The interface treatment material for splicing new and old pavement base courses according to claim 7, wherein the organic modifier is selected from the group consisting of octadecyl dimethyl benzyl ammonium chloride and cetyl trimethyl ammonium chloride , Cetyltrimethylammonium bromide, octadecyltrimethylammonium chloride or γ-propyltrimethoxysilane or a mixture of any two.
- 新旧路面基层拼接界面处治材料的制备方法，其特征在于，包括如下步骤：The preparation method of the treatment material for the splicing interface of the new and old pavement base layer is characterized in that it comprises the following steps:S1.制备有机硅改性聚氨酯乳液：先将聚醚多元醇、有机硅、多异氰酸酯、偶联剂、亲水扩链剂置于反应釜中，氮气保护条件下反应得到有机硅改性聚氨酯预聚体；将成盐剂、水和聚氨酯乳液专用消泡剂加入到所述聚氨酯预聚体中混合反应，得到有机硅改性聚氨酯乳液；S1. Preparation of silicone-modified polyurethane emulsion: first put polyether polyol, silicone, polyisocyanate, coupling agent, and hydrophilic chain extender in a reactor, and react under the protection of nitrogen to obtain silicone-modified polyurethane emulsion. Polymer; adding a salt-forming agent, water and a special defoamer for polyurethane emulsion to the polyurethane prepolymer and mixing reaction to obtain a silicone modified polyurethane emulsion;S2.制备有机改性累托石：阳离子交换容量为90mmol/100g的累托石加入水中，搅拌使累托石分散均匀，得到累托石和水的均相体系；将有机改性剂加入水中，搅拌均匀，然后加入到累托石和水的均相体系中，搅拌得到有机改性累托石乳液；对有机改性累托石乳液进行抽滤，得到滤饼，滤饼水洗涤，然后将滤饼干燥，研磨成粉，过200～300目筛，得到有机改性累托石；S2. Preparation of organically modified rectorite: add rectorite with a cation exchange capacity of 90mmol/100g into water, stir to disperse rectorite evenly, and obtain a homogeneous system of rectorite and water; add organic modifier to water, Stir evenly, then add it to the homogeneous system of rectorite and water, and stir to obtain the organic modified rectorite emulsion; the organic modified rectorite emulsion is suction filtered to obtain a filter cake, the filter cake is washed with water, and then filtered The cake is dried, ground into powder, and passed through a 200-300 mesh sieve to obtain organically modified rectorite;S3.制备新旧路面基层拼接界面处治材料：将有机改性累托石加入到有机硅改性聚氨酯乳液中，搅拌得到有机累托石改性有机硅聚氨酯乳液；再将有机累托石改性有机硅聚氨酯乳液、水、减水剂和复合缓凝剂混合搅拌均匀，最后加入水泥继续搅拌即可得到所述新旧路面基层拼接界面处治材料。S3. Preparation of new and old pavement base layer splicing interface treatment materials: adding organically modified rectorite to the silicone modified polyurethane emulsion, stirring to obtain the organic rectorite modified silicone polyurethane emulsion; then the organic rectorite modified organic The silicone polyurethane emulsion, water, water reducing agent and composite retarder are mixed and stirred uniformly, and finally cement is added and the stirring is continued to obtain the splicing interface treatment material of the new and old pavement base layer.
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