CN113880510A - Stabilizer for road base mixture and construction method thereof - Google Patents
Stabilizer for road base mixture and construction method thereof Download PDFInfo
- Publication number
- CN113880510A CN113880510A CN202111215786.5A CN202111215786A CN113880510A CN 113880510 A CN113880510 A CN 113880510A CN 202111215786 A CN202111215786 A CN 202111215786A CN 113880510 A CN113880510 A CN 113880510A
- Authority
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- Prior art keywords
- stabilizer
- powder
- mixture
- road base
- cement
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- 239000000203 mixture Substances 0.000 title claims abstract description 22
- 239000003381 stabilizer Substances 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000002585 base Substances 0.000 claims abstract description 20
- 239000002689 soil Substances 0.000 claims abstract description 18
- 239000004568 cement Substances 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920000858 Cyclodextrin Polymers 0.000 claims abstract description 6
- 239000004113 Sepiolite Substances 0.000 claims abstract description 6
- 229910001919 chlorite Inorganic materials 0.000 claims abstract description 6
- 229910052619 chlorite group Inorganic materials 0.000 claims abstract description 6
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000010881 fly ash Substances 0.000 claims abstract description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 6
- 239000011707 mineral Substances 0.000 claims abstract description 6
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 6
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 6
- 239000002893 slag Substances 0.000 claims abstract description 6
- 102000004190 Enzymes Human genes 0.000 claims abstract description 5
- 108090000790 Enzymes Proteins 0.000 claims abstract description 5
- 239000003513 alkali Substances 0.000 claims abstract description 5
- 239000002699 waste material Substances 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000004519 grease Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 229920001450 Alpha-Cyclodextrin Polymers 0.000 claims description 4
- HFHDHCJBZVLPGP-RWMJIURBSA-N alpha-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO HFHDHCJBZVLPGP-RWMJIURBSA-N 0.000 claims description 4
- 229940043377 alpha-cyclodextrin Drugs 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- 239000010775 animal oil Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000005457 ice water Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000036571 hydration Effects 0.000 abstract description 3
- 238000006703 hydration reaction Methods 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 201000010099 disease Diseases 0.000 abstract description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009411 base construction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003124 biologic agent Substances 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 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
- C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust 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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/26—Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/003—Foundations for pavings characterised by material or composition used, e.g. waste or recycled material
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a stabilizer for a road base mixture and a construction method thereof. The invention replaces cement used by the traditional road base layer mixture stabilizer with non-cement type cementing materials such as fly ash, mineral powder, carbide slag powder, sepiolite powder and the like, and can effectively relieve the problems of drying shrinkage and thermal shrinkage cracking caused by over-rapid hydration of the cement and the like. In addition, the auxiliary effects of organic or biological additives such as sulfonated oil, iron powder, chlorite powder, cyclodextrin, alkali-resistant biological enzyme and the like are combined, the common diseases of the inorganic cementing material sensitive to the soil content are reduced, and the curing defect of cement on the mixture with high soil content is relieved.
Description
Technical Field
The invention belongs to the technical field of road pavement base construction, and particularly relates to a stabilizer for a road base mixture and a construction method thereof.
Background
The prior road base course or subbase course mostly takes cement stabilized macadam aggregate base course as the main. The cement stabilized macadam base has good structural integrity and water stability, and high initial and later strength, and is widely applied to various grades of highways, particularly heavy, extremely heavy and extra heavy traffic grades. However, in the long-term use process of the cement stabilized base layer, common quality problems such as drying shrinkage cracks, temperature shrinkage cracks and the like often occur, and the cement is sensitive to soil content, so that the stabilization effect of the cement stabilized base layer on a mixture with high soil content is poor.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a stabilizer for a road base mixture and a construction method thereof. The invention replaces cement used by the traditional road base layer mixture stabilizer with non-cement type cementing materials such as fly ash, mineral powder, carbide slag powder, sepiolite powder and the like, and can effectively relieve the problems of drying shrinkage and thermal shrinkage cracking caused by over-rapid hydration of the cement and the like. In addition, the auxiliary effects of organic or biological additives such as sulfonated oil, iron powder, chlorite powder, cyclodextrin, alkali-resistant biological enzyme and the like are combined, the common diseases of the inorganic cementing material sensitive to the soil content are reduced, and the curing defect of cement on the mixture with high soil content is relieved.
The stabilizer for the road base layer mixture consists of 100-200 parts by mass of a premix, 100 parts by mass of a main material and 1-2 parts by mass of an auxiliary material;
the premixing agent consists of sulfonated waste grease, iron powder and cyclodextrin in a mass ratio of 80-120:40-50: 40-50;
the main material is a non-cement inorganic cementing material;
the auxiliary materials are formed by mixing sodium sulfate, triethanolamine and alkali-resistant biological enzyme according to the mass ratio of 0.5-2:0.1-0.2: 0.5-1.
The iron powder can be replaced by chlorite powder, and the mesh number is 300.
The cyclodextrin is alpha-cyclodextrin.
The preparation process of the sulfonated waste grease comprises the following steps: (1) standing the collected waste oil at a low temperature of 5-10 ℃ to remove impurities and animal oil therein; (2) in an ice water environment, 16.0g of fuming sulfuric acid is dropwise added into 100g of pretreated waste grease, and the mixture is rapidly dispersed; after the dropwise addition is finished, slowly heating to 60-70 ℃, and carrying out heat preservation reaction for 4-5 h; (3) after the reaction is finished, adding a sodium hydroxide solution to adjust the pH value to 5-7; (4) and finally, adding water to fully dilute a reaction product, separating out lower-layer brown liquid, and distilling under reduced pressure to obtain the high-purity liquid.
The main material is a cementing material prepared from fly ash, mineral powder, carbide slag powder and sepiolite powder in a mass ratio of 45-50:30-40:8-10: 3-5.
The construction method of the stabilizer for the road base layer mixture comprises the following steps: (1) mixing the premix with water in a mass ratio of 3-5:100, then mixing with soil or weathered rock to be stabilized, and stewing for 4-6 h; (2) and (2) stirring and mixing the main material, the auxiliary material and the soil or weathered rock premixed in the step (1) according to the mass ratio of 5-8:0.05-0.16:100, layering and rolling, and maintaining.
The invention has the following beneficial effects:
(1) based on the soil double-electric layer theory, the formula design of the premix is carried out. The unique hydrophilic and oleophilic structures of sulfonated waste grease, alpha-cyclodextrin and the like are utilized to modify the surface of soil particles, so that the water absorption and the millability of the soil are improved. The iron content in the iron powder or chlorite is high, and the ion replacement is carried out on the soil surface through cation exchange energy, so that the strength of the soil body and the capability of resisting compression deformation are improved.
(2) The fly ash, the mineral powder, the carbide slag powder, the sepiolite powder and other bulk industrial solid wastes are used for replacing the existing cement gelling system, so that the hydration speed of the gelling material can be slowed down, the occurrence of cracks can be effectively relieved, and the water stability is enhanced.
(3) The effective combination of the non-cement type cementing material and the organic and biological agents can effectively reduce the occurrence of cracks on one hand and improve the sensitivity of the inorganic type cementing material to the soil content in the mixture on the other hand.
Detailed Description
The following examples further illustrate the stabilizers for road base mixes of the present invention, but the scope of the invention is not limited thereto.
Example 1
(1) Preparing a premix: 100g of sulfonated waste grease, 40g of chlorite powder of 300 meshes and 40g of alpha-cyclodextrin are mixed to obtain the oil.
The preparation process of the sulfonated waste grease comprises the following steps: (1) pretreating the waste oil, namely standing the collected waste oil at a low temperature of 10 ℃ to remove impurities and animal oil in the collected waste oil; (2) in an ice water environment, 16.0g of fuming sulfuric acid is dropwise added into 100g of pretreated waste grease, and the mixture is rapidly dispersed; after the dropwise addition, slowly raising the temperature to 60 ℃, and carrying out heat preservation reaction for 4.5 hours; (3) after the reaction is finished, adding a sodium hydroxide solution to adjust the pH value to 7; (4) the reaction mixture was diluted with water, and the lower brown liquid was separated and distilled under reduced pressure.
(2) Main materials: uniformly mixing and dispersing 45g of fly ash, 40g of mineral powder, 10g of carbide slag powder and 5g of sepiolite powder.
(3) Auxiliary materials: 1.0g of sodium sulfate, 0.15g of triethanolamine and 0.85g of alkali-resistant biological enzyme are uniformly mixed.
(4) The construction method comprises the following steps: mixing a premix with water in a mass ratio of 5:100, mixing, then mixing with soil to be stabilized, and stewing for 5 hours; and stirring and mixing the main material, the auxiliary material and the premixed soil, and performing layered rolling and maintenance.
Claims (6)
1. The stabilizer for the road base mixture is characterized by comprising 200 parts by mass of 100-one premixed agent, 100 parts by mass of main material and 1-2 parts by mass of auxiliary material;
the premixing agent consists of sulfonated waste grease, iron powder and cyclodextrin in a mass ratio of 80-120:40-50: 40-50;
the main material is a non-cement inorganic cementing material;
the auxiliary materials are formed by mixing sodium sulfate, triethanolamine and alkali-resistant biological enzyme according to the mass ratio of 0.5-2:0.1-0.2: 0.5-1.
2. The stabilizer for road base mix according to claim 1, wherein the iron powder is replaced with chlorite powder with a mesh size of 300 mesh.
3. The stabilizer for road-base mix according to claim 1, wherein the cyclodextrin is α -cyclodextrin.
4. The stabilizer for road-base mix according to claim 1, wherein the sulfonated waste oil is prepared by: (1) standing the collected waste oil at a low temperature of 5-10 ℃ to remove impurities and animal oil therein; (2) in an ice water environment, 16.0g of fuming sulfuric acid is dropwise added into 100g of pretreated waste grease, and the mixture is rapidly dispersed; after the dropwise addition is finished, slowly heating to 60-70 ℃, and carrying out heat preservation reaction for 4-5 h; (3) after the reaction is finished, adding a sodium hydroxide solution to adjust the pH value to 5-7; (4) and finally, adding water to fully dilute a reaction product, separating out lower-layer brown liquid, and distilling under reduced pressure to obtain the high-purity liquid.
5. The stabilizer for the road base mixture according to claim 1, wherein the main material is a gelled material prepared from fly ash, mineral powder, carbide slag powder and sepiolite powder in a mass ratio of 45-50:30-40:8-10: 3-5.
6. The method for constructing a stabilizer for a road base mix according to claim 1, wherein the method comprises the steps of: (1) mixing the premix with water in a mass ratio of 3-5:100, then mixing with soil or weathered rock to be stabilized, and stewing for 4-6 h; (2) and (2) stirring and mixing the main material, the auxiliary material and the soil or weathered rock premixed in the step (1) according to the mass ratio of 5-8:0.05-0.16:100, layering and rolling, and maintaining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111215786.5A CN113880510A (en) | 2021-10-19 | 2021-10-19 | Stabilizer for road base mixture and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111215786.5A CN113880510A (en) | 2021-10-19 | 2021-10-19 | Stabilizer for road base mixture and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113880510A true CN113880510A (en) | 2022-01-04 |
Family
ID=79003517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111215786.5A Pending CN113880510A (en) | 2021-10-19 | 2021-10-19 | Stabilizer for road base mixture and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113880510A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1239085A (en) * | 1998-06-12 | 1999-12-22 | 武汉水利电力大学 | Soil solidifying agent |
| CN103848582A (en) * | 2012-12-04 | 2014-06-11 | 浙江大学宁波理工学院 | Gelled material for soil solidification |
| CN106833587A (en) * | 2016-12-28 | 2017-06-13 | 浙江海洋大学 | A kind of bio oil hydroxyl sulfoacid salt production process based on kitchen waste grease |
| CN111620648A (en) * | 2020-05-09 | 2020-09-04 | 中国人民解放军军事科学院国防工程研究院 | Soil solidifying material and soil solidifying method thereof |
-
2021
- 2021-10-19 CN CN202111215786.5A patent/CN113880510A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1239085A (en) * | 1998-06-12 | 1999-12-22 | 武汉水利电力大学 | Soil solidifying agent |
| CN103848582A (en) * | 2012-12-04 | 2014-06-11 | 浙江大学宁波理工学院 | Gelled material for soil solidification |
| CN106833587A (en) * | 2016-12-28 | 2017-06-13 | 浙江海洋大学 | A kind of bio oil hydroxyl sulfoacid salt production process based on kitchen waste grease |
| CN111620648A (en) * | 2020-05-09 | 2020-09-04 | 中国人民解放军军事科学院国防工程研究院 | Soil solidifying material and soil solidifying method thereof |
Non-Patent Citations (5)
| Title |
|---|
| 丁毅: "《土壤固化及其应用：筑路材料与技术的变革》", 30 June 2009, 中国大地出版社 * |
| 卢雪松等: "《离子土壤固化剂 加固武汉红色黏土的试验效果及其机理研究》", 31 August 2019, 武汉理工大学出版社 * |
| 吴超等: "《微颗粒黏附与清除》", 31 January 2014, 冶金工业出版社 * |
| 李发生等: "《有机化学品泄露场地土壤污染防治技术指南》", 31 March 2012, 中国环境科学出版社 * |
| 李瑞铎等: "《复合固化材料固化土的力学性能》", 30 November 2019, 黄河水利出版社 * |
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Application publication date: 20220104 |
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