CN101929121B - Method for filling modified road asphalt comprehensively using serpentine acid leaching residue - Google Patents
Method for filling modified road asphalt comprehensively using serpentine acid leaching residue Download PDFInfo
- Publication number
- CN101929121B CN101929121B CN2009101485070A CN200910148507A CN101929121B CN 101929121 B CN101929121 B CN 101929121B CN 2009101485070 A CN2009101485070 A CN 2009101485070A CN 200910148507 A CN200910148507 A CN 200910148507A CN 101929121 B CN101929121 B CN 101929121B
- Authority
- CN
- China
- Prior art keywords
- acid leaching
- leaching residue
- serpentine
- asphalt
- filling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002253 acid Substances 0.000 title claims abstract description 35
- 238000002386 leaching Methods 0.000 title claims abstract description 34
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 title claims abstract description 32
- 239000010426 asphalt Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000011049 filling Methods 0.000 title claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract 2
- 238000001354 calcination Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 2
- 239000010425 asbestos Substances 0.000 abstract description 7
- 229910052895 riebeckite Inorganic materials 0.000 abstract description 7
- 238000003756 stirring Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 239000000395 magnesium oxide Substances 0.000 description 6
- 230000035515 penetration Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 235000019353 potassium silicate Nutrition 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000003712 anti-aging effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910052604 silicate mineral Inorganic materials 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010561 standard procedure Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 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
- 239000011230 binding agent Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 229910021392 nanocarbon Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Road Paving Structures (AREA)
Abstract
The invention relates to a method for filling modified road asphalt comprehensively with serpentine acid leaching residue, which comprises the following steps of: roasting the dried serpentine acid leaching residue to prepare the roasting acid leaching residue under a certain temperature; and adding the roasted serpentine acid leaching residue into the heated matrix asphalt, stirring and mixing for a certain time, and naturally cooling to obtain a modified road asphalt material filled with the serpentine acid leaching residue. The high temperature property, the low temperature property and the ageing resistance of the road modified asphalt material prepared by adding the serpentine acid leaching residue into the asphalt can be obviously improved. The method provides a new approach and a new method with large market capacity for the comprehensive utilization of the serpentine or asbestos tailings acid leaching residue.
Description
Technical field:
The present invention relates to a kind of method that fully utilizes the serpentine acid leaching residue filling modified road asphalt, belong to mineral resources comprehensive utilization and petrochemical industry.
Technical background:
As everyone knows, serpentine boulder is a kind of magnesian silicate mineral that is rich in, and its main chemical compositions is MgO, SiO
2And H
2O; At occurring in nature, serpentine boulder contain separately or with the asbestos deposit symbiosis, therefore in asbestos selecting and purchasing processing, produce a large amount of serpentine tailings.The serpentine ore that natural output is separated with asbestos selecting and purchasing processing is except main component MgO, SiO
2And H
2Outside the O, generally also contain iron oxide, alumina and micro-non-ferrous metal nickel.
Serpentine boulder be a kind of reserves big, the silicate mineral resource of significant application value is arranged, but only simply process and a spot of application recent decades.During the nearly last ten years, with the wherein main chemical composition MgO of comprehensive utilization, SiO
2The production chemical products with high added-value is a purpose like magnesium hydroxide, magnesia, magnesium carbonate, water glass, superfine white carbon black, Nano carbon white etc., and the scientific and technical personnel of association area have carried out a large amount of developmental researches.Its basic technology path is to adopt hydrochloric acid, sulfuric acid, hydrofluoric acid etc. to leach, and makes wherein MgO and oxide iron, nickel oxide etc. generate water-soluble salt and isolated by filtration; After then the filtrating after separating being removed iron oxide and metallic nickel, separate out magnesium hydroxide or hydrated magnesium with alkali precipitation.Owing to contain the SiO about 40% in the serpentine ore
2, this component is insoluble to acid, so produces a large amount of solid slags after the pickle liquor isolated by filtration; Present research mainly concentrates on dissolves its hydro-thermal alkali in production water glass, further prepares white carbon or silica again.But the modulus of water glass that the hot alkali solution technique of water is produced is lower, is difficult to replace using the quartzy water glass that adopts high temperature soda ash method to produce as raw material directly to be used as inorganic binder, can only produce white carbon or silica; And at present with the future market on the market capacity of white carbon or silica be limited, be difficult to the satisfied demand that large-scale develops and utilizes asbestos tailings and serpentine ore.Therefore, exploitation is a kind of can use or the market of the acid leaching residue product that market capacity is bigger is the key point that serpentine ore or asbestos tailings carry out the heavy industrialization comprehensive utilization in a large number.
Because growing continuously and fast of high-grade highway, market is increasing to the demand of high-performance road modified asphalt.The objective of the invention is that serpentine acid leaching is separated solid slag behind the MgO and be used for filling-modified pavement asphalt material after through simple processing, for the comprehensive utilization of serpentine boulder or asbestos tailings acid leaching residue provides big new way of a kind of market capacity and new method; Improve the performance and its cost of production of reduction of existing road modified bitumen simultaneously.
Summary of the invention:
The serpentine acid leaching residue of drying calcined at a certain temperature prepare the calcining acid leaching residue; Serpentine acid leaching residue after the calcining is added in the matrix pitch of heating, mix behind the certain hour and cool off naturally, obtain the filling-modified road asphalt material of a kind of serpentine acid leaching residue.
Its processing step and technological parameter are following:
(1) serpentine acid leaching residue calcining
300～800 ℃ of calcining heats; Calcination time 15～120min.
(2) acid leaching residue filling modified road asphalt
Acid leaching residue addition after the calcining is 2%～16% of a matrix pitch quality; 120～180 ℃ of pitch and acid leaching residue mixing temperatures; Mix time 15～60min.
Table 1 is depicted as the main chemical compositions of calcining front and back serpentine acid leaching residue.The specific area of acid leaching residue is respectively 319.662m before and after the calcining
2/ g and 379.33m
2/ g.
Chemical composition before and after the calcining of table 1 acid leaching residue
Equivalent softening point T with the filling-modified road asphalt of the serpentine acid leaching residue of the inventive method preparation
800Bring up to more than 53.00 ℃ from 45.53 ℃; Equivalent brittle point T
1.2Drop to below-14.00 ℃ from-7.57 ℃; Penetration ratio has brought up to 61% from 47%; The high and low temperature performance and the ageing resistance of road asphalt all significantly improve.
The specific embodiment:
Embodiment one:
Get AH-70 pitch 500g in sample-containing dish, place on the heating panel, heat while stirring with mixer, be warming up to 140 ℃ after, slowly add serpentine acid leaching residue 30g, mix 20min, promptly get the filling-modified bituminous material of serpentine acid leaching residue.Adopt national standard method detect between the needle penetration, ductility, softening point, equivalent softening point, viscoelastic region of the filling-modified bituminous material of this acid leaching residue, anti-aging and with the performances such as adhesiveness of gathering materials.
Embodiment two:
Get AH-70 pitch 500g in sample-containing dish, place on the heating panel, heat while stirring with mixer, be warming up to 120 ℃ after, slowly add serpentine acid leaching residue 40g, mix 30min, promptly get the filling-modified bituminous material of serpentine acid leaching residue.Adopt national standard method detect between the needle penetration, ductility, softening point, equivalent softening point, viscoelastic region of the filling-modified bituminous material of this acid leaching residue, anti-aging and with the performances such as adhesiveness of gathering materials.
Table 2 is the main performance index testing result of the filling-modified asphalt sample of embodiment gained.
The main performance index testing result of table 2 embodiment sample
| Embodiment | Needle penetration (25 ℃) | Penetration index (PI) | Ductility (25 ℃) | Softening point | Equivalent softening point T 800 | Equivalent brittle point T 1.2 | Between viscoelastic region (℃) | Anti-aging (penetration ratio)/% |
| One | 48.5 | -0.165 | 42.5 | 49.5 | 54.14 | -14.72 | 68.86 | 62.89 |
| Two | 49.8 | -0.285 | 44.5 | 47.2 | 53.57 | -14.05 | 67.62 | 61.85 |
| Matrix pitch | 68.5 | -1.574 | ＞100.0 | 44.8 | 45.53 | -7.50 | 55.15 | 47.00 |
Claims (1)
1. method that fully utilizes the serpentine acid leaching residue filling modified road asphalt; It is characterized in that; The serpentine acid leaching residue of drying is added in the matrix pitch of heating by 2%～16% of matrix pitch quality behind 300～800 ℃ of calcining 15～120min; And 120～180 ℃ mix 15～60min after naturally the cooling, obtain the filling-modified road asphalt material of a kind of serpentine acid leaching residue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101485070A CN101929121B (en) | 2009-06-26 | 2009-06-26 | Method for filling modified road asphalt comprehensively using serpentine acid leaching residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101485070A CN101929121B (en) | 2009-06-26 | 2009-06-26 | Method for filling modified road asphalt comprehensively using serpentine acid leaching residue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101929121A CN101929121A (en) | 2010-12-29 |
| CN101929121B true CN101929121B (en) | 2012-05-30 |
Family
ID=43368524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101485070A Expired - Fee Related CN101929121B (en) | 2009-06-26 | 2009-06-26 | Method for filling modified road asphalt comprehensively using serpentine acid leaching residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101929121B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355569B (en) * | 2014-10-23 | 2016-03-30 | 长安大学 | A kind of composite modified asphalt concrete |
| CN109810523B (en) * | 2019-01-29 | 2021-05-14 | 上海同沥新材料科技有限公司 | Asphalt reinforcing agent and application thereof in modified heavy traffic asphalt |
| CN112142371A (en) * | 2020-09-16 | 2020-12-29 | 张延年 | Solid waste asphalt mixture for concrete pavement and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB412498A (en) * | 1933-12-16 | 1934-06-28 | George Benjamin Dunford | Improvements in coating compositions or binders |
| GB688373A (en) * | 1948-11-10 | 1953-03-04 | Congoleum Nairn Inc | Improvements in laminated floor and wall covering material |
| CN1050411A (en) * | 1989-09-20 | 1991-04-03 | 中国人民解放军信阳陆军学院训练部科研处 | The comprehensive utilization of serpentine tailing |
| CN1311171A (en) * | 2001-02-28 | 2001-09-05 | 陈胜利 | Multifunction building cement intensifying agent |
| CN1827804A (en) * | 2006-03-30 | 2006-09-06 | 上海大学 | Method for comprehensively utilizing serpentine resource |
| CN101235440A (en) * | 2008-03-14 | 2008-08-06 | 大悟华龙吕王石材有限公司 | Method of comprehensively utilizing serpentine |
-
2009
- 2009-06-26 CN CN2009101485070A patent/CN101929121B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB412498A (en) * | 1933-12-16 | 1934-06-28 | George Benjamin Dunford | Improvements in coating compositions or binders |
| GB688373A (en) * | 1948-11-10 | 1953-03-04 | Congoleum Nairn Inc | Improvements in laminated floor and wall covering material |
| CN1050411A (en) * | 1989-09-20 | 1991-04-03 | 中国人民解放军信阳陆军学院训练部科研处 | The comprehensive utilization of serpentine tailing |
| CN1311171A (en) * | 2001-02-28 | 2001-09-05 | 陈胜利 | Multifunction building cement intensifying agent |
| CN1827804A (en) * | 2006-03-30 | 2006-09-06 | 上海大学 | Method for comprehensively utilizing serpentine resource |
| CN101235440A (en) * | 2008-03-14 | 2008-08-06 | 大悟华龙吕王石材有限公司 | Method of comprehensively utilizing serpentine |
Non-Patent Citations (3)
| Title |
|---|
| 卢继美,黄万抚.《略论蛇纹石矿的综合利用》.《江西有色金属》.1992,第6卷(第2期), * |
| 杜高翔.《石棉尾矿综合利用研究进展》.《中国非金属矿工业导刊》.2007,(第2期), * |
| 檀竹红,郑水林.《石棉尾矿现状及资源化利用研究进展》.《中国非金属矿工业导刊》.2007,(第3期), * |
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| Publication number | Publication date |
|---|---|
| CN101929121A (en) | 2010-12-29 |
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