CN116081972A - 超细微纳米尺度活性掺合料及链接灌浆材料制备方法 - Google Patents
超细微纳米尺度活性掺合料及链接灌浆材料制备方法 Download PDFInfo
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- CN116081972A CN116081972A CN202310165997.5A CN202310165997A CN116081972A CN 116081972 A CN116081972 A CN 116081972A CN 202310165997 A CN202310165997 A CN 202310165997A CN 116081972 A CN116081972 A CN 116081972A
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- grouting material
- river sand
- powder
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- 239000000463 material Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000000843 powder Substances 0.000 claims abstract description 56
- 239000004576 sand Substances 0.000 claims abstract description 39
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 239000002893 slag Substances 0.000 claims abstract description 26
- 239000004568 cement Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 17
- 239000010881 fly ash Substances 0.000 claims abstract description 17
- 239000011521 glass Substances 0.000 claims abstract description 16
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 16
- 239000011324 bead Substances 0.000 claims abstract description 15
- 239000013530 defoamer Substances 0.000 claims abstract description 15
- 239000004088 foaming agent Substances 0.000 claims abstract description 15
- 229920005646 polycarboxylate Polymers 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 8
- NKWPZUCBCARRDP-UHFFFAOYSA-L calcium bicarbonate Chemical compound [Ca+2].OC([O-])=O.OC([O-])=O NKWPZUCBCARRDP-UHFFFAOYSA-L 0.000 claims abstract description 6
- 229910000020 calcium bicarbonate Inorganic materials 0.000 claims abstract description 6
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 6
- 239000010440 gypsum Substances 0.000 claims abstract description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 26
- 239000010438 granite Substances 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000004579 marble Substances 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 14
- 239000005543 nano-size silicon particle Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 13
- 238000007580 dry-mixing Methods 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 12
- 239000002910 solid waste Substances 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 102000002151 Microfilament Proteins Human genes 0.000 claims description 5
- 108010040897 Microfilament Proteins Proteins 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- 210000003632 microfilament Anatomy 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 4
- 238000000498 ball milling Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000011398 Portland cement Substances 0.000 claims description 2
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- 239000010703 silicon Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 125000003368 amide group Chemical group 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 8
- 239000011707 mineral Substances 0.000 abstract description 8
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- 150000001875 compounds Chemical class 0.000 abstract description 2
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- 239000011800 void material Substances 0.000 abstract description 2
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- 230000000052 comparative effect Effects 0.000 description 15
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- 230000002929 anti-fatigue Effects 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 239000002518 antifoaming agent Substances 0.000 description 3
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241001248533 Euchloe ausonides Species 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical group 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000004566 building material Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
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- 238000002425 crystallisation Methods 0.000 description 1
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- 239000012535 impurity Substances 0.000 description 1
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- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
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- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008689 nuclear function Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- -1 polysiloxane Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
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- 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
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- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
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- C04B14/04—Silica-rich materials; Silicates
- C04B14/048—Granite
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- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
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- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
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- C04B18/14—Waste materials; Refuse from metallurgical processes
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- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
- C04B24/124—Amides
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- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
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- 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
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- 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
- C04B28/14—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 calcium sulfate cements
- C04B28/142—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
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- C04B7/02—Portland cement
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- C—CHEMISTRY; METALLURGY
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- C04B2111/00008—Obtaining or using nanotechnology related materials
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- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
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- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
本发明提供了一种超细微纳米尺度活性掺合料及链接灌浆材料制备方法,所述灌浆材料包括以下组分，按质量百分比：水泥25％～38％，玻璃微珠5％～14％，硅灰2‑5％，超细微纳米尺度活性掺合料5％‑20％，高强纤维2‑5％，增韧纤维0.1‑1％，聚羧酸减水剂0.2％～0.4％，消泡剂0％～0.02％，发泡剂0％～0.04％，河砂28％～42％，磨细河砂12％～18％；本发明通过加入普通硅酸盐水泥与工业石膏和和碳酸氢钙的复合物一起作为矿物掺合料的活性激发剂与高效减水剂共同作用来激发其的活性，使矿物掺合料中的粉煤灰、矿渣粉的活性成分得到充分的激发，填充了灌浆料硬化过程中形成的各种孔隙，降低了灌浆料的空隙率，灌浆料获得优良的抗侵蚀性和耐久性。
Description
技术领域
本发明涉及建筑材料技术领域，尤其涉及一种超细微纳米尺度活性掺合料及链接灌浆材料制备方法。
背景技术
水泥基灌浆材料因其来源广、价格低，使用方便，在灌浆工程中成为主体材料。但普通水泥灌浆材料是脆性的，具有抗拉强度低、抗裂性能差、没有延性而呈脆性破坏的特点，低水胶比时流动性差，不能满足某些特殊灌浆的要求。随着社会的进步，外加剂产业的迅猛发展，人们对灌浆料的需求也提出更高要求，例如一些钢结构连接段、钢混结构过渡连接段就需要高强抗疲劳荷载连接，而且要求拌和物具有超高的流动性以满足施工需要，硬化后要有微膨胀性以达到最佳连接效果，所以配制难度较大国内尚无成熟产品。
发明内容
本发明提供了一种超细微纳米尺度活性掺合料及链接灌浆材料制备方法，该掺合料中使用了钢渣、粉煤灰、矿渣、大理石粉和花岗岩粉等工业固废，解决了工业固废掺合料能够有效提升工业固废的附加值，降低超高性能混凝土的制备成本，同时对超高性能混凝土的性能有增益效果。
实现本发明上述目的所采用的技术方案为：
一种超细微纳米尺度活性掺合料，按重量份计，所述超细微纳米尺度活性掺合料，包括30-50份矿渣，20-50份钢渣，10-50份粉煤灰，1-10份大理石粉、2-10份花岗岩粉，2-8份纳米碳酸钙，2-8份纳米氧化硅，1-10份激发剂。
进一步地，所述超细微纳米尺度活性掺合料，包括40-50份矿渣，40-50份钢渣，20-50份粉煤灰，1-5份大理石粉、2-5份花岗岩粉，2-5份纳米碳酸钙，2-5份纳米氧化硅，2-6份激发剂。
进一步地，所述超细微纳米尺度活性掺合料，包括40份矿渣，40份钢渣，20份粉煤灰，3份大理石粉、3份花岗岩粉，6份纳米碳酸钙，6份纳米氧化硅，5份激发剂。
进一步地，所述的大理石粉和花岗岩粉为石材厂切割大理石和花岗岩时产生的废弃粉末，比表面积均大于680m2/kg，平均粒径均小于35μm；大理石粉和花岗岩粉来可减少水泥用量又能综合利用资源；所述激发剂由工业石膏和碳酸氢钙按照重量比为1：1组成。
进一步地，所述钢渣为不锈钢渣，碱度为1.2～2.0，晶粒尺寸为0.5～10μm，化学成分：二氧化硅20-30wt％，三氧化铝5-10wt％，三氧化二铁10-15wt％，氧化钙42-50wt％，氧化镁4-6wt％，氧化钾0-0.02wt％，氧化钠0.1-0.3wt％，剩余为其他杂质。
进一步地，所述粉煤灰为电厂燃料燃烧所产生烟气灰分中的细微固体颗粒物，其中SiO2质量百分含量比＞50wt％，Al2O3质量百分含量比＞30wt％，45μm方孔筛筛余＜20％。
粉煤灰常用的激发剂是单一的盐类激发剂，仅能单纯激发粉煤灰的活性，对混凝土的耐久性能起不到改善作用。本发明采用的激发剂由工业石膏和碳酸氢钙按照重量比为1：1组成，激发效果好，且掺量小，成本低廉。
本发明还提供了一种上述超细微纳米尺度活性掺合料的制备方法，包括以下步骤：
步骤1：按所需重量份计，将矿渣、粉煤灰、钢渣加入球磨机进行粉磨；球磨机球磨时间30～60min，得到工业固废粉料；
步骤2：向步骤1所得工业固废粉料中加入大理石粉、花岗岩粉、纳米碳酸钙、纳米氧化硅，继续开动球磨机进行粉磨；球磨机粉磨时间20～40min，得到纳米改性的工业固废粉料，即超细微纳米尺度活性掺合料。
本发明还提供了一种含有上述超细微纳米尺度活性掺合料的灌浆材料，所述灌浆材料包括以下组分，按质量百分比：水泥25％～38％，玻璃微珠5％～14％，硅灰2-5％，超细微纳米尺度活性掺合料5％-20％，高强纤维2-5％，增韧纤维0.1-1％，聚羧酸减水剂0.2％～0.4％，消泡剂0％～0.02％，发泡剂0％～0.04％，河砂28％～42％，磨细河砂12％～18％。
进一步地，所述的水泥为普通硅酸盐水泥，强度等级不低于42.5级；所述的聚羧酸减水剂和消泡剂均为粉剂，聚羧酸减水剂减水率不小于25％，消泡剂为有机硅类。
进一步地，所述的硅灰28d活性指数为100～106％、SiO2含量不低于95％，平均粒径为0.5～3μm。
进一步地，所述的发泡剂为酰胺类有机物粉体，能在碱性环境下分解产生氮气；所述的河砂为含水率小于0.1％的天然河砂经过筛分制得，取粒径为0.15～1.18mm部分；所述的磨细河砂为天然河砂经粉磨制得，平均粒径为0.08～0.15mm。
进一步地，所述高强纤维为镀铜微丝钢纤维，平均长度为4～8mm，直径0.1-0.2mm，抗拉强度不低于2850MPa。本发明的镀铜微丝钢纤维不仅力学性能更优，而且耐高温、耐腐蚀，应用在混凝土中可全寿命的抑制混凝土的收缩开裂，提高抗裂性能。同时辅以纳米活性材料以及超细矿物掺合料的晶核作用、填充作用以及高活性，可有效解决混凝土的开裂、提高密实度；镀铜微丝钢纤维可以在混凝土中构成一种三维乱向支撑的搭接体系，有效分散混凝土收缩应力，降低开裂风险。
进一步地，所述增韧纤维为玻璃纤维，平均长度为50～100μm，直径5-10μm。混凝土硬化后如果裂纹一旦发生就容易扩展成为贯穿性裂缝，所述玻璃纤维可以减少混凝土的裂纹，并使裂纹部位生成的结晶快速稳定。玻璃纤维在混凝土内形成杂乱的纤维网络，可以有效抑制内部的裂纹的产生，并且阻止外力下裂纹的扩张，能够有效降低裂纹。
本发明还提供了一种上述灌浆材料的制备方法，包括以下步骤：
(1)按所需质量百分比，分别取水泥25％～38％，玻璃微珠5％～14％，硅灰2-5％，超细微纳米尺度活性掺合料5％-20％，高强纤维2-5％，增韧纤维0.1-1％，聚羧酸减水剂0.2％～0.4％，消泡剂0％～0.02％，发泡剂0％～0.04％，河砂28％～42％，磨细河砂12％～18％，备用；
(2)将天然河砂于球磨机中粉磨至平均粒径为0.08～0.15mm，得到磨细河砂；
(3)按步骤(1)中所称取的比例将河砂、磨细河砂于干混机中干拌5min，停机；
(4)将按步骤(1)中所称取的水泥、玻璃微珠、硅灰、超细微纳米尺度活性掺合料、高强纤维、增韧纤维加入到干混机中再开机，继续干拌5min，停机；
(5)再将步骤(1)中所称取的聚羧酸减水剂、消泡剂和发泡剂在干混机开动状态下均匀撒入，继续干拌20min，即可制得所述灌浆材料；
(6)将步骤(5)所制得的灌浆材料装入带内膜包装袋，封口存放。
进一步地，所述的玻璃微珠为风选超细粉煤灰玻璃微珠，平均粒径为1-5μm；
本发明的玻璃微珠能大大降低拌合物粘度，其主要组成为SiO2且以玻璃体形态存在，具有很高的火山灰活性,还能填充在水泥颗粒之间提高强度和耐久性。所述纳米碳酸钙的粒径为100-200nm，所述纳米氧化硅的粒径为100-150nm。本发明的纳米二氧化硅、纳米碳酸钙重量比为1：1，纳米二氧化硅、纳米碳酸钙为超细矿物掺合料在混凝土内部填充水化，并提供结晶成核点，使混凝土更加均匀密实，提高力学强度和耐久性。
有益效果
1、本发明通过加入普通硅酸盐水泥与工业石膏和和碳酸氢钙的复合物一起作为矿物掺合料的活性激发剂与高效减水剂共同作用来激发其的活性，使矿物掺合料中的粉煤灰、矿渣粉的活性成分得到进一步的激发，填充了混凝土硬化过程中形成的各种孔隙，从而增加了混凝土的密实度，降低了混凝土的空隙率，混凝土获得优良的抗侵蚀性和耐久性。
2、由于多种不同尺寸矿物掺合料相互复合会产生叠加效应，所以本发明将水泥与硅灰、玻璃微珠、大理石粉、花岗岩粉以一定比例复合形成超高性能胶凝体系，将筛分河砂和磨细河砂以一定比例复合形成灌浆材料集料体系，同时采用聚羧酸减水剂降低体系的需水量，引入消泡剂消除拌合物搅拌过程产生的有害气泡，引入发泡剂在碱性环境下产生氮气来抑制灌浆料塑性阶段的收缩，引入钢纤维增强灌浆料的韧性，最终实现高强抗疲劳荷载钢混连接灌浆材料常温条件下的高流动度、低粘度、低收缩、高韧性、超高强度和超高耐久性。
具体实施方式
下面结合具体实施例对本发明做详细具体的说明，但是本发明的保护范围并不局限于以下实施例。
实施例1
一种超细微纳米尺度活性掺合料，按重量份计，所述超细微纳米尺度活性掺合料，包括40份矿渣，40份钢渣，20份粉煤灰，5份大理石粉、5份花岗岩粉，5份纳米碳酸钙，5份纳米氧化硅，5份激发剂；
所述花岗岩粉比表面积均750m2/kg，平均粒径为25μm；
所述大理石粉比表面积为720m2kg，平均粒径为28μm
所述激发剂由工业石膏和碳酸氢钙按照重量比为1：1组成。
上述超细微纳米尺度活性掺合料的制备方法，包括以下步骤：
步骤1：按所需重量份计，将矿渣、粉煤灰、钢渣加入球磨机进行粉磨；球磨机球磨时间30～60min，得到工业固废粉料；
步骤2：向步骤1所得工业固废粉料中加入大理石粉、花岗岩粉、纳米碳酸钙、纳米氧化硅，继续开动球磨机进行粉磨；球磨机粉磨时间40min，得到纳米改性的工业固废粉料，即超细微纳米尺度活性掺合料。
实施例2
含有实施例1所得超细微纳米尺度活性掺合料的灌浆材料，所述灌浆材料包括以下组分，按质量百分比：水泥27.8％，玻璃微珠9.5％，硅灰4.6％，超细微纳米尺度活性掺合料11.4％，高强纤维2％，增韧纤维1％，聚羧酸减水剂0.38％，消泡剂0.01％，发泡剂0.01％，河砂30.4％，磨细河砂12.9％。
所述硅灰28d活性指数为102％、SiO2含量98％，平均粒径为0.18μm。
消泡剂为聚硅氧烷消泡剂；发泡剂为某偶氮酰胺类有机物粉体；河砂粒径为0.15～1.18mm，连续级配，含泥量小于1％；磨细河砂采用球磨机粉磨，平均粒径为0.12mm。
所述高强纤维为镀铜微丝钢纤维，平均长度为8mm，直径0.15mm，抗拉强度为2850MPa。
所述增韧纤维为玻璃纤维，长度为80μm，直径8μm。
上述灌浆材料的制备方法，包括以下步骤：
(1)按所需质量百分比，分别取水泥、玻璃微珠、硅灰、超细微纳米尺度活性掺合料、高强纤维、增韧纤维、聚羧酸减水剂、消泡剂、发泡剂、河砂、磨细河砂，备用；
(2)将天然河砂于球磨机中粉磨至平均粒径为0.12mm，得到磨细河砂；
(3)按步骤(1)中所称取的比例将河砂、磨细河砂于干混机中干拌5min，停机；
(4)将按步骤(1)中所称取的水泥、玻璃微珠、硅灰、超细微纳米尺度活性掺合料、高强纤维、增韧纤维加入到干混机中再开机，继续干拌5min，停机；
(5)再将步骤(1)中所称取的聚羧酸减水剂、消泡剂和发泡剂在干混机开动状态下均匀撒入，继续干拌20min，即可制得所述灌浆材料；
(6)将步骤(5)所制得的灌浆材料装入带内膜包装袋，封口存放。
对比例1
对比例1与实施例1的区别仅仅在于所用激发剂7份；
对比例2
对比例2与实施例1的区别仅仅在于所用激发剂3份；
对比例3
对比例3与实施例1的区别仅仅在于所用激发剂1份；
对比例4
对比例3与实施例1的区别仅仅在于所用激发剂0份；
对比例5
对比例4与实施例2的区别仅仅在于所用水泥29.3％、玻璃微珠8.0％、消泡剂0.02％、发泡剂0％
对比例6
对比例5与实施例2的区别仅仅在于所用硅灰3.6％、超细微纳米尺度活性掺合料12.4％。
超细微纳米尺度活性掺合料活性激发试验
参照GB/T 18046-2017《用于水泥、砂浆和混凝土中的粒化高炉矿渣粉》测试超细粉的活性指数。
采用试验球磨机(SM-500*500)粉磨，测试实施例1、对比例1-4中超细微纳米尺度活性掺合料性能，结果如下表1。
表1
结果表明，本发明的超细微纳米尺度活性掺合料7d活性指数超过90％、28d活性指数超过110％，激发剂的加入，进一步提高了超细微纳米尺度活性掺合料的活性指数。
灌浆材料性能测试
灌浆材料的流动性、膨胀率测试参照GB/T 50448-2015《水泥基灌浆材料应用技术规范》，流动度使用的模具是截锥圆模，其尺寸为上口内径为70mm±0.5mm，下口内径为100mm±0.5mm，高为60mm±0.5mm。灌浆材料试验中的力学性能测试方法是根据GBT17671-2021《水泥胶砂强度检测方法(IS0法)》的规定进行的。灌浆材料倒入50mm×50mm×150mm的试模中，应在10min的时间内完成成模，标准养护后测量其3d、7d、28d的抗折、抗压强度。灌浆材料的电通量、弹性模量依据标准GB/T50082-2009《普通混凝土长期性能和耐久性能试验方法标准》中规定的方法测定。
具体的测试结果记录于表2。
表2
实施例2和对比例5中灌浆材料的流动性良好，拌合物粘度较低，坍落度损失小，无泌水现象。通过实施例2和对比例5对比发现，玻璃微珠有利于提高拌合物流动性、抗压强度和抗氯离子渗透性，发泡剂能明显抑制拌合物塑性阶段的收缩。
从表2中可以看出适量增加大理石粉和花岗岩粉掺量制备的高强抗疲劳荷载钢混连接灌浆材料强度并未大幅下降，配制高强抗疲劳荷载钢混连接灌浆材料时合理的掺入大理石粉和花岗岩粉能减少硅灰的用量。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，本领域技术人员在不脱离权利要求书确定的本发明的精神和范围的条件下，还可以对以上内容进行各种各样的修改，因此所有等同的技术方案也应属于本发明的范畴。
Claims (10)
1.一种超细微纳米尺度活性掺合料，其特征在于：按重量份计，所述超细微纳米尺度活性掺合料，包括30-50份矿渣，20-50份钢渣，10-50份粉煤灰、1-10份大理石粉、2-10份花岗岩粉，2-8份纳米碳酸钙，2-8份纳米氧化硅，1-10份激发剂。
2.根据权利要求1所述的超细微纳米尺度活性掺合料，其特征在于：按重量份计，所述超细微纳米尺度活性掺合料，包括40-50份钢渣，40-50份钢渣，20-50份粉煤灰， 1-5份大理石粉、2-5份花岗岩粉，2-5份纳米碳酸钙，2-5份纳米氧化硅，2-6份激发剂。
3.根据权利要求2所述的超细微纳米尺度活性掺合料，其特征在于：按重量份计，所述超细微纳米尺度活性掺合料，包括40份矿渣，40份钢渣，20份粉煤灰， 3份大理石粉、3份花岗岩粉， 6份纳米碳酸钙，6份纳米氧化硅、5份激发剂。
4.根据权利要求1所述的超细微纳米尺度活性掺合料，其特征在于：所述激发剂由工业石膏和碳酸氢钙按照重量比为1：1组成；所述的大理石粉和花岗岩粉为石材厂切割大理石和花岗岩时产生的废弃粉末，比表面积均大于680 m2/kg，平均粒径均小于35μm；所述纳米碳酸钙的粒径为100-200nm，所述纳米氧化硅的粒径为100-150nm。
5.根据权利要求1-4任一项所述的超细微纳米尺度活性掺合料的制备方法，其特征在于，包括以下步骤：
步骤1：按所需重量份计，将矿渣、粉煤灰、钢渣加入球磨机进行粉磨；球磨机球磨时间30～60min，得到工业固废粉料；
步骤2：向步骤1所得工业固废粉料中加入大理石粉、花岗岩粉、纳米碳酸钙、纳米氧化硅，继续开动球磨机进行粉磨；球磨机粉磨时间20～40min，得到纳米改性的工业固废粉料，即超细微纳米尺度活性掺合料。
6.一种灌浆材料，其特征在于：所述灌浆材料包括以下组分，按质量百分比：水泥25%～38%，玻璃微珠5%～14%，硅灰2-5%，超细微纳米尺度活性掺合料5%-20%，高强纤维2-5%，增韧纤维0.1-1%，聚羧酸减水剂0.2%～0.4%，消泡剂0%～0.02%，发泡剂0%～0.04%，河砂28%～42%，磨细河砂12%～18%；所述超细微纳米尺度活性掺合料采用权利要求1-5中任一项所述的超细微纳米尺度活性掺合料。
7.根据权利要求6所述的灌浆材料，其特征在于：所述的水泥为普通硅酸盐水泥，强度等级不低于42.5级；所述的聚羧酸减水剂和消泡剂均为粉剂，聚羧酸减水剂减水率不小于25%，消泡剂为有机硅类；所述的硅灰28d活性指数为100～106%、SiO2含量不低于95%，平均粒径为0.5～3μm。
8.根据权利要求6所述的灌浆材料，其特征在于：所述高强纤维为镀铜微丝钢纤维，平均长度为4～8mm，直径0.1-0.2mm，抗拉强度不低于2850Mpa；所述增韧纤维为玻璃纤维，平均长度为50～100μm，直径5-10μm。
9.根据权利要求6所述的灌浆材料，其特征在于：其特征在于：所述的发泡剂为酰胺类有机物粉体，能在碱性环境下分解产生氮气；所述的河砂为含水率小于0.1%的天然河砂经过筛分制得，取粒径为0.15～1.18 mm部分；所述的磨细河砂为天然河砂经粉磨制得，平均粒径为0.08～0.15 mm。
10.根据权利要求7所述的灌浆材料的制备方法，其特征在于，包括以下步骤：
（1）按质量百分比，取水泥25%～38%，玻璃微珠5%～14%，硅灰2-5%，超细微纳米尺度活性掺合料5%-20%，高强纤维2-5%，增韧纤维0.1-1%，聚羧酸减水剂0.2%～0.4%，消泡剂0%～0.02%，发泡剂0%～0.04%，河砂28%～42%，磨细河砂12%～18%；
（2）将天然河砂于球磨机中粉磨至平均粒径为0.08～0.15 mm，得到磨细河砂；
（3）按步骤（1）中所称取的比例将河砂、磨细河砂于干混机中干拌5min，停机；
（4）将按步骤（1）中所称取的水泥、玻璃微珠、硅灰、超细微纳米尺度活性掺合料、高强纤维、增韧纤维加入到干混机中再开机，继续干拌5min，停机；
（5）再将步骤（1）中所称取的聚羧酸减水剂、消泡剂和发泡剂在干混机开动状态下均匀撒入，继续干拌20min，即可制得所述灌浆材料；
（6）将步骤（5）所制得的灌浆材料装入带内膜包装袋，封口存放。
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