CN113831085B - Cement-styrene-acrylic emulsion and waterborne epoxy resin grouting material - Google Patents
Cement-styrene-acrylic emulsion and waterborne epoxy resin grouting material Download PDFInfo
- Publication number
- CN113831085B CN113831085B CN202111171324.8A CN202111171324A CN113831085B CN 113831085 B CN113831085 B CN 113831085B CN 202111171324 A CN202111171324 A CN 202111171324A CN 113831085 B CN113831085 B CN 113831085B
- Authority
- CN
- China
- Prior art keywords
- solution
- cement
- water
- styrene
- epoxy resin
- 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.)
- Active
Links
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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention provides a cement-styrene-acrylic emulsion and waterborne epoxy resin grouting material, which comprises three uniformly mixed components of a liquid A, a liquid B and a liquid C; the liquid A is styrene-acrylic emulsion, the aqueous epoxy resin B and the liquid C are cement slurry; mixing the solution A and the solution B according to the proportion of 1: uniformly mixing the mixed solution of the solution A and the solution B and the solution C according to a volume ratio of 0.2-2.2, wherein the mixed solution of the solution A and the solution B is mixed with the solution C according to a ratio of 1: and uniformly mixing the components in a volume ratio of 1-1.5 to obtain the cement-styrene-acrylic emulsion and waterborne epoxy resin grouting material. The cement-styrene-acrylic emulsion and water-based epoxy resin grouting material has the advantages of good slurry stability, good water retention property, good fluidity, water resistance, soil reinforcement, soil insulation performance enhancement and the like.
Description
Technical Field
The invention relates to the technical field of underground engineering weak stratum reinforcement and seepage-proofing water plugging grouting, in particular to a cement-styrene-acrylic emulsion and water-borne epoxy resin grouting material.
Background
The grouting is an engineering reinforcing auxiliary measure, a reasonable grouting process is adopted in the grouting process, related matched mechanical equipment is adopted, the grout is injected into gaps of the rock and the soil, cavities and cracks, the permeability of water flow is reduced and the engineering strength and stability of the water flow are enhanced through diffusion, hardening, reinforcing and condensation of the grout, and various purposes of reinforcing, preventing seepage, blocking water and the like of the rock and the soil are finally achieved.
At present, China has become the fastest global tunnel and underground engineering construction market, roads and subway tunnels in China are about 2 kilometers long, and the total length of various underground tunnels exceeds 1 kilometer; meanwhile, the geological conditions in China are complex, and in the process of building the tunnel, common structural planes such as joints, faults and the like put forward new requirements for the civil engineering industry for the stratum with poor geological environment, more technological innovations are put forward and implemented to solve the problems, the progress of the civil industry is also driven, and the tunnel building technology in China generally reaches the world advanced level. Meanwhile, if the underground tunnel construction process such as the subway and the like meets the conditions of poor geological conditions, abundant underground water and serious water leakage problem, emergencies such as mud outburst and water burst, primary support deformation and cracking and the like easily occur aiming at the conditions of high water level and the like, and great safety risks exist in the tunnel construction process. In order to ensure that the tunnel excavation surface is stable and does not have sedimentation, grouting and water plugging are carried out on the soil body for reinforcement, the ground sedimentation is reduced, the soil sand body self-stability is improved, and normal excavation of the tunnel excavation interval is ensured.
Aiming at the defects of the current plugging material: after sufficient grout is poured, the expected grouting pressure is still not reached, which indicates that the poured grout is long in solidification time and not solidified, the grout is diffused along the cracks of the rock, and the expected grouting effect cannot be reached; or the grouting pressure is satisfied, the expected grouting amount is not reached, the solidification time of the grouting solution is too fast, the curtain grouting effect is not reached, and the like. The cement-styrene-acrylic emulsion and water-based epoxy resin grouting material has the characteristics of controllable gel time, difficult loss of slurry, high setting rate, improved grouting property, reduced hydrophobicity, enhanced bonding force with a wet crack, wide coverage rate and the like, can achieve the purposes of timely filling, rapid water plugging and leakage prevention and the like, and can be widely applied to engineering such as tunnel curtain grouting, grouting after the wall, soft soil foundation reinforcement and the like.
Aiming at the problems in the prior art, the grouting material has the advantages of better material stability, low bleeding rate, improvement of stability of a grouting area, convenience for soil and reinforcement, enhancement of insulating property of a soil body and the like.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a cement-styrene-acrylic emulsion and water-based epoxy resin grouting material which has the advantages of strong binding power, small contractibility, good stability, small bleeding rate, high stone strength, strong durability, convenient use and the like, reduces the grouting loss rate of the traditional material, improves the utilization rate of the material and further reduces the engineering use cost of the grouting material.
In order to realize the purpose, the invention adopts the following technical scheme: a cement-styrene-acrylic emulsion and water-borne epoxy resin grouting material comprises three uniformly mixed components of a liquid A, a liquid B and a liquid C; the solution A is styrene-acrylic emulsion, the aqueous epoxy resin B and the solution C are cement slurry;
and uniformly mixing the solution A and the solution B according to the volume ratio of 1: 0.2-2.2, and uniformly mixing the mixed solution of the solution A and the solution B with the solution C according to the volume ratio of 1: 1-1.5 to obtain the cement-styrene-acrylic emulsion and waterborne epoxy resin grouting material.
Further, the liquid C comprises cement, a retarder, a stabilizer and a water reducing agent, wherein the doping amount of the retarder is 0.5-3% of the mass of the cement, the doping amount of the stabilizer is 0.1-0.5% of the mass of the cement, and the doping amount of the water reducing agent is 0.1-1% of the mass of the cement.
Further, the water-cement ratio of the solution C is 0.5-1.5: 1.
Further, the cement is ordinary portland cement or early-strength ordinary portland cement with the strength grade not lower than 42.5 MPa.
Further, the retarder is calcium lignosulphonate, tartaric acid and potassium ferricyanide.
Further, the stabilizer is cellulose ether, polyvinyl alcohol and water-soluble starch.
Further, the water reducing agent is an amino high-efficiency water reducing agent, a lignin water reducing agent, a naphthalene water reducing agent or a polycarboxylic acid water reducing agent.
Compared with the prior art, the invention has the following beneficial effects: the invention adopts the matching of additives to generate action, improves the stability of the slurry and simultaneously improves the fluidity of the slurry, the polyvinyl alcohol applied in the invention can form a stable structure with the cement-styrene-acrylic emulsion and the waterborne epoxy resin, so that the gel has better adhesive force, durability and corrosion resistance.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the functions of the invention clearer and easier to understand, the invention is further described by combining the following specific embodiments:
example 1
The invention provides a cement styrene-acrylic emulsion water-adding epoxy resin grouting material, which comprises three uniformly mixed components of solution A, solution B and solution C; the solution A is styrene-acrylic emulsion, the aqueous epoxy resin B and the solution C are cement slurry;
uniformly mixing the solution A and the solution B according to the volume ratio of 1: 0.2-2.2, and uniformly mixing the mixed solution of the solution A and the solution B and the solution C according to the volume ratio of 1: 1-1.5 to obtain the cement-styrene-acrylic emulsion and waterborne epoxy resin grouting material
The solution A is a styrene-acrylic emulsion, the solid content is 40-50%, the viscosity is 80-2000 mPa & s, and the pH value is 7-10; the B liquid is water-based epoxy resin, is a milky uniform liquid, has a pH value of 6-8, and has a solid content of 20-50%.
The liquid C comprises cement, a retarder, a stabilizer and a water reducing agent, wherein the doping amount of the retarder is 0.5-3% of the mass of the cement, the doping amount of the stabilizer is 0.1-0.5% of the mass of the cement, and the doping amount of the water reducing agent is 0.1-1% of the mass of the cement.
The water-cement ratio of the solution C is 0.5-1.5: 1.
The cement is ordinary portland cement or early-strength ordinary portland cement with the strength grade not lower than 42.5 MPa.
The retarder is calcium lignosulphonate, tartaric acid and potassium ferricyanide; the calcium lignosulfonate retarder has a retarding effect, facilitates control of solidification time, improves fluidity of slurry, and improves strength of a stone body. The retarder tartaric acid is organic acid, the cement hardening process is carried out under the alkaline condition, the tartaric acid inhibits the hydration and hardening speed of cement clinker, and simultaneously the tartaric acid reacts to generate corresponding calcium salt, so that the hardening process is correspondingly delayed, the strength of a concretion body is improved, and the stability of the solution is improved. The retarder potassium ferricyanide can reduce hydration heat and prolong the cement hardening time, so that the fresh concrete can keep plasticity for a long time. .
The stabilizer is cellulose ether, polyvinyl alcohol and water-soluble starch; the stabilizer polyvinyl alcohol is a water-soluble polymer, has a surface activity effect, increases the inter-particle attraction, coagulates a multiphase dispersion body together, and is beneficial to the dispersion stability of the particles, so that the stability, the bleeding property and the water-resistant dispersibility of the solution C are improved. The stabilizer cellulose ether can be dissolved in water and dilute alkali solution after being etherified, has thermoplasticity, and is easier to dissolve in water when the introduced group is larger. The water-soluble starch serving as the stabilizer can improve the cohesiveness and the water retention of the mortar and improve the operability.
The water reducing agent is an amino high-efficiency water reducing agent, a lignin water reducing agent, a naphthalene water reducing agent and a polycarboxylic acid water reducing agent; the amino high-efficiency water reducing agent and the sulfamate high-molecular synthetic resin have excellent water reducing property and fluidity, better improve the durability and strength and improve the rheological property of slurry. The lignin water reducing agent belongs to an anionic surface active substance, has adsorption and dispersion effects on cement, and can increase the fluidity of concrete and improve the workability without changing the water consumption. The naphthalene and polycarboxylic acid water reducing agents can comprehensively improve and improve various performances of cement slurry, and can reduce the consumption of cement by 10-25% under the condition of ensuring the strength.
Example 2
Preparing a solution A: selecting styrene-acrylic emulsion with Baume degree of 25 Be'.
And B, preparation of a solution B: the waterborne epoxy resin with the Baume degree of 30 Be' is selected.
C, liquid preparation: adding 12 parts by mass of calcium lignosulphonate, 2 parts by mass of cellulose ether and 3 parts by mass of amino high-efficiency water reducing agent into 600 parts by mass of water, uniformly stirring, adding 560 parts by mass of cement, and continuously and uniformly stirring.
Mixing: and uniformly mixing the solution A and the solution B according to the volume ratio of 1: 1, and then uniformly mixing the mixed solution of the solution A and the solution B with the solution C according to the volume ratio of 1: 1 to obtain a finished grouting material.
The material test indexes are as follows:
the water precipitation rate of the liquid C after 2 hours is about 4 percent, the setting time is 80s, the compressive strength at 7d is 4.5MPa, and the compressive strength at 14d can reach 10.2 MPa.
The rest of the procedure was the same as in example 1.
Example 3
Preparing a solution A: selecting the styrene-acrylic emulsion with the Baume degree of 30 Be'.
And B, preparation of a solution B: the waterborne epoxy resin with the Baume degree of 35 Be' is selected.
And C, preparation of a solution C: adding 13 parts of potassium ferricyanide, 2.5 parts of cellulose ether and 3 parts of lignin water reducing agent into 550 parts of water by mass, uniformly stirring, adding 500 parts of cement, and continuously and uniformly stirring.
Mixing: uniformly mixing the solution A and the solution B according to the volume ratio of 1: 1, and then mixing the mixed solution of the solution A and the solution B with the solution C according to the ratio of 1: 1.2, and then evenly mixing to obtain a finished product of the grouting material.
The material test indexes are as follows:
the 2h water precipitation rate of the C liquid is about 3.5%, the setting time is 60s, the 7d compressive strength is 6.2MPa, and the 14d compressive strength can reach 12.3 MPa.
Otherwise, the same as in example 1 was performed.
Example 4
Preparing a solution A: selecting styrene-acrylic emulsion with the Baume degree of 35 Be'.
B, preparation of liquid B: the waterborne epoxy resin with the Baume degree of 40 Be' is selected.
C, liquid preparation: adding 12 parts of tartaric acid, 2 parts of polyvinyl alcohol and 2 parts of amino high-efficiency water reducing agent into 520 parts of water by mass, uniformly stirring, adding 490 parts of cement, and continuously uniformly stirring.
Mixing: and uniformly mixing the solution A and the solution B according to the volume ratio of 1: 1.1, and then uniformly mixing the mixed solution of the solution A and the solution B with the solution C according to the volume ratio of 1: 1.2 to obtain a finished grouting material.
The material test indexes are as follows:
the 2h water separation rate of the C liquid is about 3 percent, the setting time is 40s, the 7d compressive strength is 7.5MPa, and the 14d compressive strength can reach 14.5 MPa.
The rest of the procedure was the same as in example 1.
Example 5
Preparing a solution A: selecting styrene-acrylic emulsion with Baume degree of 40 Be'.
B, preparation of liquid B: the waterborne epoxy resin with the Baume degree of 35 Be' is selected.
And C, preparation of a solution C: adding 12 parts by mass of calcium lignosulphonate, 2.5 parts by mass of water-soluble starch and 2 parts by mass of naphthalene-based superplasticizer into 520 parts by mass of water, uniformly stirring, adding 490 parts by mass of cement, and continuously uniformly stirring.
Mixing: and uniformly mixing the solution A and the solution B according to the volume ratio of 1: 1.1, and then uniformly mixing the mixed solution of the solution A and the solution B and the solution C according to the volume ratio of 1: 1.3 to obtain a finished product of the grouting material.
The material test indexes are as follows:
the 2h water precipitation rate of the C liquid is about 2.5%, the setting time is 30s, the 7d compressive strength is 8.3MPa, and the 14d compressive strength can reach 18.4 MPa.
Example 6
Preparing a solution A: selecting styrene-acrylic emulsion with the Baume degree of 30 Be'.
And B, preparation of a solution B: the waterborne epoxy resin with the Baume degree of 30 Be' is selected.
C, liquid preparation: adding 13 parts of potassium ferricyanide, 2 parts of cellulose ether and 2 parts of amino high-efficiency water reducing agent into 560 parts of water by mass, uniformly stirring, adding 500 parts of cement, and continuously uniformly stirring.
Mixing: and uniformly mixing the solution A and the solution B according to the volume ratio of 1: 1.2, and then uniformly mixing the mixed solution of the solution A and the solution B with the solution C according to the volume ratio of 1: 1.2 to obtain a finished grouting material.
The material test indexes are as follows:
the 2h water precipitation rate of the C liquid is about 3.4%, the setting time is 35s, the 7d compressive strength is 7.6MPa, and the 14d compressive strength can reach 16.8 MPa.
The rest of the procedure was the same as in example 1.
Example 7
Preparing a solution A: selecting styrene-acrylic emulsion with the Baume degree of 35 Be'.
And B, preparation of a solution B: the waterborne epoxy resin with the Baume degree of 30 Be' is selected.
C, liquid preparation: adding 11 parts by mass of calcium lignosulphonate, 2 parts by mass of cellulose ether and 1.5 parts by mass of polycarboxylic acid high-efficiency water reducing agent into 530 parts by mass of water, uniformly stirring, adding 480 parts by mass of cement, and continuously and uniformly stirring.
Mixing: and uniformly mixing the solution A and the solution B according to the volume ratio of 1: 1.2, and then uniformly mixing the mixed solution of the solution A and the solution B and the solution C according to the volume ratio of 1: 1.5 to obtain a finished product of the grouting material.
The material test indexes are as follows:
the 2h water precipitation rate of the C liquid is about 3.8 percent, the setting time is 32s, the 7d compressive strength is 7.0MPa, and the 14d compressive strength can reach 14.1 MPa. Otherwise, the same as in example 1 was performed.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (1)
1. A cement-styrene-acrylic emulsion and waterborne epoxy resin grouting material is characterized in that: comprises three components of liquid A, liquid B and liquid C which are uniformly mixed; the solution A is styrene-acrylic emulsion, the aqueous epoxy resin B and the solution C are cement slurry;
mixing the solution A and the solution B according to the proportion of 1: uniformly mixing the mixed solution of the solution A and the solution B and the solution C according to a volume ratio of 0.2-2.2, wherein the mixed solution of the solution A and the solution B is mixed with the solution C according to a ratio of 1: 1-1.5, and uniformly mixing to obtain a cement-styrene-acrylic emulsion and water-based epoxy resin grouting material; the liquid C comprises cement, a retarder, a stabilizer and a water reducing agent, wherein the doping amount of the retarder is 0.5-3% of the mass of the cement, the doping amount of the stabilizer is 0.1-0.5% of the mass of the cement, and the doping amount of the water reducing agent is 0.1-1% of the mass of the cement; the water-cement ratio of the solution C is 0.5-1.5: 1; the cement is ordinary Portland cement or early-strength ordinary Portland cement with the strength grade not lower than 42.5 MPa; the retarder is calcium lignosulphonate, tartaric acid and potassium ferricyanide; the stabilizer is cellulose ether, polyvinyl alcohol and water-soluble starch; the water reducing agent is an amino high-efficiency water reducing agent, a lignin water reducing agent, a naphthalene water reducing agent and a polycarboxylic acid water reducing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111171324.8A CN113831085B (en) | 2021-10-08 | 2021-10-08 | Cement-styrene-acrylic emulsion and waterborne epoxy resin grouting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111171324.8A CN113831085B (en) | 2021-10-08 | 2021-10-08 | Cement-styrene-acrylic emulsion and waterborne epoxy resin grouting material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113831085A CN113831085A (en) | 2021-12-24 |
| CN113831085B true CN113831085B (en) | 2022-07-22 |
Family
ID=78968389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111171324.8A Active CN113831085B (en) | 2021-10-08 | 2021-10-08 | Cement-styrene-acrylic emulsion and waterborne epoxy resin grouting material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113831085B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116444209A (en) * | 2023-04-07 | 2023-07-18 | 三亚瑞泽再生资源利用有限公司 | High polymer environment-friendly recycled concrete and preparation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0867542A (en) * | 1994-08-30 | 1996-03-12 | Asahi Chem Ind Co Ltd | Mortar composition |
| CN102898084B (en) * | 2012-10-19 | 2014-09-17 | 江苏苏博特新材料股份有限公司 | High-intensity high-toughness coarse aggregate, preparation method thereof and concrete prepared from high-intensity high-toughness coarse aggregate |
| CN107698226A (en) * | 2017-09-06 | 2018-02-16 | 合诚工程咨询集团股份有限公司 | A kind of cement-silicate injecting paste material |
| CN109231936B (en) * | 2018-10-18 | 2021-11-26 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Self-leveling waterproof mortar and preparation method and application thereof |
| CN111620606A (en) * | 2020-05-25 | 2020-09-04 | 广东厦鼎新材料科技有限公司 | Double-component water-based tile back glue and preparation method thereof |
| CN112608107B (en) * | 2020-12-31 | 2023-05-02 | 苏州佳固士新材料科技有限公司 | Grouting material, and preparation method and application thereof |
-
2021
- 2021-10-08 CN CN202111171324.8A patent/CN113831085B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113831085A (en) | 2021-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107601988B (en) | Micro-expansion anti-crack super early-strength two-component geopolymer grouting material | |
| CN101628800B (en) | Early strength cement grout with low dehydration ratio for grouting | |
| CN102875082A (en) | Cement-based permeable crystalline core master batch and its application | |
| CN101830664B (en) | Prestressing anchoring and grouting material additive, as well as preparation method and application thereof | |
| CN102180628A (en) | High-strength micro-expansion prestress anchoring grouting material and preparation method thereof | |
| CN105272084A (en) | Inorganic-organic composite grouting material | |
| CN112500056B (en) | Superfine solid waste base grouting material and preparation method thereof | |
| CN114956768B (en) | Anti-dispersion grouting material for grouting and water plugging of water-rich stratum, and preparation method and construction method thereof | |
| CN105198333A (en) | Modified grouting material | |
| CN103408273A (en) | Permeable-adhesive type cement-based sealing and repairing agent and preparation method thereof | |
| CN111574099A (en) | Hollow anchor rod grouting material additive, preparation method and application | |
| CN111995325A (en) | Controllable grouting material for advanced small guide pipe of water-rich accumulation body stratum tunnel and preparation method of controllable grouting material | |
| CN105272086A (en) | Double-doped grouting material | |
| CN113831085B (en) | Cement-styrene-acrylic emulsion and waterborne epoxy resin grouting material | |
| CN110498633B (en) | Composite additive for shield synchronous grouting material | |
| CN107512862B (en) | Tackifier special for shield synchronous grouting material | |
| CN103539416A (en) | Special novel shear-resistant mortar for synchronous grouting and preparation method thereof | |
| CN111606625B (en) | Formula and preparation method of C70 high-strength self-compacting concrete | |
| CN109704684B (en) | Retarding type water-dispersion-resistant grouting material for implanted rock-socketed single pile | |
| CN114853435B (en) | Single-liquid and double-liquid switchable slurry for synchronous grouting of shield tunnel | |
| CN112159150A (en) | Double-component fast-hardening early-strengthening liquid soil curing agent and application thereof | |
| CN116768524A (en) | Nanometer rebound inhibitor, preparation method thereof and application thereof in sprayed concrete | |
| CN117263646A (en) | Solid waste-based phosphate grouting reinforcement material and preparation method and application thereof | |
| CN105272085A (en) | Novel grouting material | |
| CN108585648A (en) | Grouting serous fluid formula 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |