CN116102308A - Clay curing agent for reinforcing subway tunnel hole, preparation method and application thereof - Google Patents
Clay curing agent for reinforcing subway tunnel hole, preparation method and application thereof Download PDFInfo
- Publication number
- CN116102308A CN116102308A CN202211574260.0A CN202211574260A CN116102308A CN 116102308 A CN116102308 A CN 116102308A CN 202211574260 A CN202211574260 A CN 202211574260A CN 116102308 A CN116102308 A CN 116102308A
- Authority
- CN
- China
- Prior art keywords
- curing agent
- clay
- clay curing
- subway tunnel
- soil
- 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.)
- Pending
Links
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 66
- 239000004927 clay Substances 0.000 title claims abstract description 58
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 11
- 238000002360 preparation method Methods 0.000 title description 5
- 239000002689 soil Substances 0.000 claims abstract description 46
- 239000004568 cement Substances 0.000 claims abstract description 26
- 239000000853 adhesive Substances 0.000 claims abstract description 9
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract description 9
- 239000002893 slag Substances 0.000 claims abstract description 9
- 230000001070 adhesive effect Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- 230000002787 reinforcement Effects 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000011398 Portland cement Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 239000002910 solid waste Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000002440 industrial waste Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004626 scanning electron microscopy Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- WFIZEGIEIOHZCP-UHFFFAOYSA-M potassium formate Chemical compound [K+].[O-]C=O WFIZEGIEIOHZCP-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
Images
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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
Abstract
The invention relates to the technical field of clay curing agents, and discloses a clay curing agent for reinforcing a subway tunnel, which comprises the following components in parts by weight: 35-50 parts of cement, 5-15 parts of phosphogypsum, 35-50 parts of slag and 0-15 parts of adhesive. The curing agent has high solidification speed, can greatly improve the early strength of a solidified soil body, can recycle solid waste, and accords with the sustainable development concept of environmental protection.
Description
Technical Field
The invention relates to the technical field of clay curing agents, in particular to a clay curing agent for reinforcing a subway tunnel hole, a preparation method and application thereof.
Background
In recent years, urban construction is increasingly underway, and underground space rail transit is rapidly developed. The urban subway tunnels in southeast coastal areas are mostly positioned in weak soil layers, the weak soil layers have the problems of high water content, low bearing capacity, easiness in being disturbed by long-term vibration load and the like, along with the increase of subway operation time, the urban subway tunnels in all soft soil areas are subjected to sedimentation to a certain extent, if the problems are not solved in time, the sedimentation phenomenon occurs, the riding comfort is influenced, structural cracks are induced, and the structural safety is seriously influenced even to endanger life. How to improve foundation settlement becomes a problem to be solved. Soil body reinforcement treatment is an effective application method, and in recent years, students at home and abroad have great research progress on the aspects of selection, doping amount, physical and mechanical properties and the like of cured materials.
However, for the reinforcement of the subway tunnel, the subway tunnel needs to be operated in the daytime, so that the reinforcement soil body needs to be constructed at night, the high requirement on the curing agent is provided, the two requirements of high condensation speed and high early strength are required to be met, and the solidification time of the existing curing agent is long. For example, patent CN112876184A proposes a silt curing agent, the strength of 7-day cured soil can reach 0.19-0.215 MPa, and the strength of the unused curing agent is 0.073MPa; patent CN111943620a describes a mud curing agent consisting of the following components in parts by mass: 100 parts of sulphoaluminate cement, 3-10 parts of quicklime powder, 0.3-0.5 part of methyl cellulose, 1-2 parts of steel slag and 0.3-0.5 part of potassium formate, wherein the strength of 7-day solidified soil can reach 0.39-0.63 MPa, and the strength of a control group is 0.1-0.13 MPa. Although the strength of clay can be improved by more than 300% after the clay is cured by using the curing agent in the above patent, the curing time is long.
Disclosure of Invention
The invention aims to solve the problem of slower solidification speed of the clay curing agent in the prior art, and provides the clay curing agent for reinforcing the subway tunnel, which has high solidification speed, can greatly improve the early strength of a cured soil body, recycles solid wastes and accords with the sustainable development concept of environmental protection and low carbon. The invention also provides a preparation method of the clay curing agent for reinforcing the subway tunnel.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the clay curing agent for reinforcing the subway tunnel comprises the following components in parts by weight:
the invention uses slag produced in blast furnace ironmaking process in ironmaking factory, phosphogypsum produced in wet phosphoric acid process and adhesive as raw materials of curing agent, and the prepared curing soil is improved by 68% as compared with early unconfined compressive strength of cement curing soil under the same condition by replacing part of cement curing agent to be applied to soil body reinforcement. The clay curing agent has the advantages of fast setting and hardening, high early strength, meeting the requirements of continuous daytime operation and fast nighttime construction of subway tunnels, increasing the consumption and utilization rate of industrial wastes, and having higher economical efficiency and environmental protection.
Preferably, the cement is Portland cement, and the index of the Portland cement is not lower than P.O.42.5.
Preferably, the slag is not lower in grade than S75.
Preferably, the phosphogypsum contains not more than 25% of crystal water, not less than 60% of calcium sulfate, and not more than 75 μm of particle size.
Preferably, the binder has a dissolution rate of not less than 200s and a particle diameter of not more than 75 μm.
Preferably, the adhesive is an epoxy resin adhesive.
The clay curing agent is applied to subway tunnel engineering, underground engineering, pile foundation engineering, road engineering and building foundation construction.
The invention has good curing effect and high curing speed, and is suitable for subway tunnel engineering, underground engineering, pile foundation engineering, road engineering and building foundation construction.
Preferably, the use method of the clay curing agent comprises the following steps:
(1) Uniformly mixing the components of the clay curing agent according to the mass percentage, and mixing the components with water to obtain curing agent slurry; (2) Mixing the curing agent slurry with the soil body to be cured, adding water, stirring uniformly to obtain cured soil, and naturally curing for 3-7 days.
Preferably, the dosage of the clay curing agent is 5-35% of the total mass of the soil body to be cured, and the water-cement ratio of the cured soil is 0.4-1.0.
Preferably, the use method of the clay curing agent comprises the following steps:
1) A hole with the diameter of 50-100 mm is formed at the position to be reinforced, and a sealing surge prevention device is arranged at the orifice;
2) Adding water into the clay curing agent, mixing, and injecting the clay curing agent into the pile hole in a high-pressure injection grouting mode;
3) After the high-pressure injection grouting is finished, the surge prevention device is removed after the pore water pressure is stable, and the hole sealing device is installed.
Therefore, the invention has the following beneficial effects: (1) The settlement of the subway tunnel can be greatly slowed down, and the early strength of the solidified soil body can be effectively improved; (2) The phosphogypsum produced in the wet-process phosphoric acid process and industrial wastes such as slag produced in the blast furnace ironmaking process of an ironmaking plant are used as raw materials of the curing agent to replace part of cement curing agent to be applied to clay reinforcement in subway tunnel holes, so that the requirements of the reinforcement in the subway tunnel holes are met, the cement consumption can be reduced, the environment is protected, the cost is reduced, the solid waste utilization rate is improved, the effect of recycling the wastes is truly achieved, the environment-friendly low-carbon sustainable development theory is met, and the method has higher social benefit and higher application value.
Drawings
Fig. 1 is an SEM image of the surface of the cured soil using the clay curing agent of comparative example 1 and example 1, wherein the cured soil of comparative example 1 is denoted as cement cured soil and the cured soil of example 1 is denoted as early strength cured soil.
Detailed Description
The invention is further described below in connection with specific embodiments.
In the following concrete implementation method, the cement is P.O42.5 ordinary Portland cement; phosphogypsum is prepared from solid waste which is produced by a phosphoric acid process and takes calcium sulfate dihydrate as a main component, the content of semi-hydrated gypsum after calcination is 67%, the crystallization water is 18%, and the particle size is 50 mu m; slag is a melt obtained in blast furnace ironmaking in ironworks, industrial solid waste residue obtained after water quenching is classified as S75, and the adhesive is an epoxy resin adhesive 302 and is purchased from Hongdong Cheng Ruida.
Examples 1 to 6 and comparative example 1
The clay curing agent for reinforcing the subway tunnel hole has the components shown in table 1.
TABLE 1 Components of examples 1-6 and comparative example 1 and their proportions
| Project | Cement and its preparation method | Phosphogypsum | Slag (slag) | Adhesive agent |
| Example 1 | 40 | 10 | 46 | 2 |
| Example 2 | 44.5 | 7.5 | 42 | 6 |
| Example 3 | 42 | 6 | 42 | 10 |
| Example 4 | 45.3 | 5.1 | 44.8 | 4.8 |
| Example 5 | 42 | 10 | 42 | 6 |
| Example 6 | 45.3 | 5.1 | 44.8 | 4.8 |
| Comparative example 1 | 100 | 0 | 0 | 0 |
The above examples and comparative examples were used for setting cement and the setting effect thereof was examined, and the procedure was as follows:
(1) Fully stirring all components in the clay curing agent uniformly, and mixing with a small amount of water to obtain clay curing agent slurry;
(2) Mixing clay curing agent slurry with cement according to the mixing amount of 20% (based on the mass of solid in the clay curing agent slurry), adopting the water-cement ratio of 0.8, adding the rest water, and stirring and mixing uniformly;
(3) The mixture obtained in the step (2) is placed into 6 standard test molds, wherein 3 samples are taken to be naturally cured for 3 days, an Unconfined Compressive Strength (UCS) test is carried out, and the rest 3 samples are naturally cured for 7 days.
Results of UCS test are shown in Table 2.
TABLE 2 curing Effect of examples 1-6 and comparative example 1
As shown in Table 2, the clay curing agent of the invention can greatly improve the strength of cement, has high curing speed and has higher strength after curing for 3 days.
Example 7
The application of the clay curing agent comprises the following steps:
(1) Placing part of clay from a certain Hangzhou area, naturally airing to obtain dry soil, crushing the soil sample, sieving with a 2mm sieve, and obtaining the optimal water content of the soil sample by using a compaction test to obtain 18.5%;
(2) Stirring the air-dried soil sample and water until the optimal water content is 18.5%, keeping the deviation not larger than 1%, and sealing and standing for 24 hours to obtain premixed soil;
(3) Placing a certain mass of pre-mixed soil, water and clay curing agent into a stirrer for stirring, wherein the water-cement ratio is 0.8, the mixing amount of the clay curing agent is 20%, and the stirring time is not less than 4min;
(4) Preparing 3 cubic standard test moulds with the thickness of 70.7mm multiplied by 70.7mm according to each group, smearing vaseline as a separating agent, putting the stirred solidified soil sample into the standard test moulds, vibrating uniformly by using a vibrator, covering the film, and curing under the natural condition of room temperature;
(5) Curing to a certain strength, demolding, and performing an Unconfined Compressive Strength (UCS) test when the age reaches 3d and 7 d.
The basic physical index of clay is shown in table 3.
TABLE 3 basic physical index of clay
The cured clay strengths obtained using the clay curing agents described in examples 1 to 6 and comparative example 1, respectively, are shown in table 4.
TABLE 4 cured clay Strength
As can be seen from Table 4, the present invention can be used for rapid curing of clay and can enhance the curing strength of clay.
The strength of the cement solidified soil using the comparative example 1 reaches 2.94MPa in 3d, and the strength of the solidified soil using the examples 1-6 reaches 4.03-4.93 MPa, which is improved by 37% -68% relative to the cement comparative group; the strength of the cement solidified soil reaches 3.62MPa in 7d, and the strength of the solidified soil using the embodiment 1-6 reaches 4.78-6.08 MPa, which is improved by 32-68% compared with the cement comparative group. The clay curing agent of comparative example 1 and the cured soil surface of example 1 were observed by Scanning Electron Microscopy (SEM), respectively, and as shown in fig. 1 (a), (b), (c) and (d), a number of black areas were observed in the figure, indicating that voids were present between the particles of the cured soil, and as the curing age increased to 7 days, as shown in (e), (f), (g) and (h), the black areas observed in the figure were also significantly reduced, indicating that as the curing age increased, the voids between the soil particles were filled, and the material interacted to effect cementing and increase the strength of the soil. By comparing the SEM results of the cement solidified soil and the early-strength solidified soil, the early hydration reaction of the early-strength solidified soil is more complete, the produced ettringite and C-S-H gel are more, and the connection between soil particles is more complete.
In conclusion, the unconfined compressive strength of the clay curing agent in the embodiment 1 in the 3d and 7d ages is far beyond that of the cement curing soil, and the clay curing agent respectively reaches 4.03-4.93 MPa and 4.78-6.08 MPa, and exceeds the requirements of early strength and quick setting of the curing agent used for reinforcing the subway tunnel. Meanwhile, the invention fully utilizes the industrial waste to replace part of cement as the raw material of the curing agent, reduces the cement consumption, has good environmental protection, low cost and high economic benefit, achieves the effect of recycling waste, and has higher social benefit and higher application value.
Claims (10)
1. The clay curing agent for reinforcing the subway tunnel is characterized by comprising the following components in parts by weight:
2. a clay curing agent for reinforcement in subway tunnel according to claim 1 wherein said cement is portland cement having a designation no less than p.o.42.5.
3. A clay curing agent for reinforcement in a tunnel of a subway according to claim 1, wherein the grade of the slag is not lower than S75.
4. The clay curing agent for reinforcing a tunnel of a subway according to claim 1, wherein the phosphogypsum contains not more than 25% of crystal water, not less than 60% of calcium sulfate, and not more than 75 μm of particle size.
5. The clay curing agent for reinforcement in subway tunnel according to claim 1, wherein the adhesive is an epoxy resin type adhesive.
6. A clay curing agent for reinforcement in subway tunnel according to claim 1 or 5, wherein said binder has a dissolution rate of not less than 200s and a particle size of not more than 75 μm.
7. Use of the clay curing agent according to any one of claims 1-6 in subway tunnel engineering, underground engineering, pile foundation engineering, road engineering, building foundation construction.
8. The use of the clay curing agent according to claim 7, wherein the clay curing agent is used in a method comprising the steps of:
(1) Uniformly mixing the components of the clay curing agent according to the mass percentage, and mixing the components with water to obtain curing agent slurry;
(2) Mixing the curing agent slurry with the soil body to be cured, adding water, stirring uniformly to obtain cured soil, and naturally curing for 3-7 days.
9. The application of the clay curing agent according to claim 8, wherein the clay curing agent is 5% -35% of the total mass of the soil body to be cured, and the water-cement ratio in the cured soil is 0.4-1.0.
10. The use of clay curing agent according to claim 7 for reinforcement in subway tunnel holes, wherein the clay curing agent is used in a method comprising the steps of:
1) A hole with the diameter of 50-100 mm is formed at the position to be reinforced, and a sealing surge prevention device is arranged at the orifice;
2) Adding water into the clay curing agent, mixing, and injecting the clay curing agent into the pile hole in a high-pressure injection grouting mode;
3) After the high-pressure injection grouting is finished, the surge prevention device is removed after the pore water pressure is stable, and the hole sealing device is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211574260.0A CN116102308A (en) | 2022-12-08 | 2022-12-08 | Clay curing agent for reinforcing subway tunnel hole, preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211574260.0A CN116102308A (en) | 2022-12-08 | 2022-12-08 | Clay curing agent for reinforcing subway tunnel hole, preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116102308A true CN116102308A (en) | 2023-05-12 |
Family
ID=86258795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211574260.0A Pending CN116102308A (en) | 2022-12-08 | 2022-12-08 | Clay curing agent for reinforcing subway tunnel hole, preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116102308A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442409A (en) * | 2015-12-31 | 2016-03-30 | 中城建第五工程局集团有限公司 | Waterborne epoxy stabilized soil, application thereof and stabilized soil road surface |
| CN107793108A (en) * | 2017-10-24 | 2018-03-13 | 四川昊龙高科轨道交通新材料科技股份有限公司 | A kind of builder's road soil consolidation material |
| CN114409327A (en) * | 2021-12-24 | 2022-04-29 | 江苏常凌交通工程有限公司 | Environment-friendly solidified soil |
| CN114573305A (en) * | 2022-04-19 | 2022-06-03 | 北京工业大学 | Preparation method and application of collapsible loess curing agent |
| CN114716205A (en) * | 2022-03-30 | 2022-07-08 | 中建三局四川建筑装备有限公司 | Production process, application and equipment for producing flow-state self-compacting backfill solidified soil by using solidified material |
-
2022
- 2022-12-08 CN CN202211574260.0A patent/CN116102308A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442409A (en) * | 2015-12-31 | 2016-03-30 | 中城建第五工程局集团有限公司 | Waterborne epoxy stabilized soil, application thereof and stabilized soil road surface |
| CN107793108A (en) * | 2017-10-24 | 2018-03-13 | 四川昊龙高科轨道交通新材料科技股份有限公司 | A kind of builder's road soil consolidation material |
| CN114409327A (en) * | 2021-12-24 | 2022-04-29 | 江苏常凌交通工程有限公司 | Environment-friendly solidified soil |
| CN114716205A (en) * | 2022-03-30 | 2022-07-08 | 中建三局四川建筑装备有限公司 | Production process, application and equipment for producing flow-state self-compacting backfill solidified soil by using solidified material |
| CN114573305A (en) * | 2022-04-19 | 2022-06-03 | 北京工业大学 | Preparation method and application of collapsible loess curing agent |
Non-Patent Citations (1)
| Title |
|---|
| 朱万成: "《普通高等教育十四五规划教材 应用岩石力学》", 31 October 2022, 冶金工业出版社, pages: 262 - 263 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lang et al. | Effectiveness of waste steel slag powder on the strength development and associated micro-mechanisms of cement-stabilized dredged sludge | |
| CN101602567B (en) | Waste mud solidification processing method based on polypropylene acetamide | |
| CN101182141B (en) | Method for preparing high-strength structure material by using iron tailings | |
| CN111018437B (en) | Ultrahigh-toughness waste brick-concrete regeneration mixture and preparation method and application thereof | |
| CN113754364B (en) | Artificial aggregate based on muck sand washing tail mud and preparation method thereof | |
| CN112759337A (en) | Active powder concrete with high-content solid waste and preparation and use method thereof | |
| CN112110705A (en) | Self-repairing semi-rigid base material for recycling construction waste | |
| CN112876180A (en) | Rapid hardening cementing material and preparation method and application thereof | |
| CN111875312A (en) | Fluid state reclaimed material and preparation process thereof | |
| CN111116159B (en) | Phosphogypsum steel pipe concrete and preparation method thereof | |
| CN103965918A (en) | Curing agent for water quenching manganese slag mollisol | |
| CN111377628A (en) | Method for preparing aggregate and concrete by using industrial solid waste | |
| CN110615654A (en) | Curing material for reinforcing soft soil foundation in low-temperature construction and application method thereof | |
| CN113636802A (en) | Ultrahigh-performance concrete and preparation method thereof | |
| CN111960755A (en) | Fine concrete with dredged sand as main raw material and preparation method thereof | |
| CN114644490B (en) | Grouting material for road reinforcement and repair | |
| CN113800838B (en) | Road base material for highway and preparation method thereof | |
| CN116102308A (en) | Clay curing agent for reinforcing subway tunnel hole, preparation method and application thereof | |
| CN114164006A (en) | Environment-friendly inorganic soft soil curing agent and river flood plain reinforcing method | |
| CN114751708A (en) | Phosphogypsum embankment filler, application thereof and preparation method of highway pavement base course | |
| CN114133151A (en) | Steel slag-doped low-carbon cementing material capable of solidifying soft soil and use method thereof | |
| CN113603401B (en) | Rapid hardening material for concrete bottom plate of underground coal mine roadway and preparation method and use method thereof | |
| CN114920518B (en) | Riverway sludge and electrolytic manganese slag double-doped baking-free brick and preparation method thereof | |
| CN113277812B (en) | Rock salt base layer mixture, preparation method and application | |
| CN117645442A (en) | Geopolymer multi-element system soil body solidifying material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |