CN109592950B - Heat-resistant cement-based grouting material and preparation method thereof - Google Patents
Heat-resistant cement-based grouting material and preparation method thereof Download PDFInfo
- Publication number
- CN109592950B CN109592950B CN201811592772.3A CN201811592772A CN109592950B CN 109592950 B CN109592950 B CN 109592950B CN 201811592772 A CN201811592772 A CN 201811592772A CN 109592950 B CN109592950 B CN 109592950B
- Authority
- CN
- China
- Prior art keywords
- grouting material
- cement
- heat
- based grouting
- percent
- 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
- C04B28/06—Aluminous 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
- 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
- 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
- C04B28/08—Slag 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2084—Thermal shock resistance
-
- 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 belongs to the field of building materials, and particularly discloses a heat-resistant cement-based grouting material and a preparation method thereof. The heat-resistant cement-based grouting material comprises the following raw materials in percentage by weight: 36 to 48 percent of cement, 45 to 60 percent of aggregate, 5 to 12 percent of mineral admixture, 0.3 to 0.6 percent of water reducing agent, 0.01 to 0.08 percent of defoaming agent, 0.01 to 0.1 percent of stabilizing agent, 0.5 to 3.5 percent of expanding agent, 0.1 to 2 percent of fiber and 11 to 15 percent of water, wherein the sum of all components except water is 100 percent. The heat-resistant cement-based grouting material has the advantages of heat resistance, high fluidity, high strength, micro expansion, self compaction and the like. The heat-resistant cement-based grouting material can be applied to equipment foundation grouting engineering with the service temperature of 200-600 ℃ and heat-resistant requirements.
Description
Technical Field
The invention belongs to the technical application field of building materials, and relates to a heat-resistant cement-based grouting material which can be applied to foundation transformation or secondary grouting engineering with heat resistance requirements of 200-600 ℃ in metallurgy, petroleum, nuclear power and the like.
Background
The cement-based grouting material is mainly applied to grouting projects such as beam-column joints, equipment bases, bridge supports, crane rails, steel structure column bases, foundation bolt anchoring and the like. The highest service temperature of the ordinary cement-based grouting material is 200 ℃, and when the temperature is continuously increased, the cement paste in the ordinary cement-based grouting material can lose water, so that the porosity is increased, and the strength is reduced; the aggregate in the ordinary cement-based grouting material also undergoes an expansion phenomenon, resulting in structural damage.
Therefore, when the service environment of the cement-based grouting material is higher than 200 ℃, the existing national standard of technical Specification for application of cement-based grouting materials GB/T50448-.
Chinese patent document CN108793893A discloses a heat-resistant concrete and a preparation method thereof, wherein ordinary portland cement, basalt broken stone, barite broken stone, grain slag and a self-made early-strength polycarboxylic acid high-performance water reducing agent are adopted to prepare the heat-resistant concrete for 200-1300 ℃. However, the granulating slag and the self-made water-reducing agent used in the document need to be pretreated or prefabricated, so that the preparation procedures of the materials are increased, and the used aggregate has larger particle size and is not suitable for common grouting engineering.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide a heat-resistant cement-based grouting material having characteristics of heat resistance, high fluidity, high strength, micro-expansion, self-compaction, etc.
Another object of the present invention is to provide a method for preparing the above heat-resistant cement-based grouting material.
In order to achieve the purpose, the invention adopts the following technical scheme:
according to one aspect of the invention, the heat-resistant cement-based grouting material provided by the invention comprises the following raw materials in percentage by weight:
in a more preferred embodiment of the present invention, the heat-resistant cement-based grouting material comprises the following raw materials by weight:
or the heat-resistant cement-based grouting material comprises the following raw materials in percentage by weight:
in the heat-resistant cement-based grouting material of the invention, the cement is one or more of ordinary portland cement, portland slag cement, portland cement, and high alumina cement having a strength grade of not less than 42.5.
The aggregate is one or more of quartz sand, basalt sand, alumina, flint clay and refractory brick crushed aggregates.
The mineral admixture is two or more of micro silicon powder, ground slag powder and ground fly ash; wherein the specific surface of the micro silicon powderThe product is 18000-20000 m2Per kg, the specific surface area of the ground slag powder is 400-3000 m2Per kg, the specific surface area of the pulverized coal ash is 400-800 m2/kg。
The water reducing agent is a powdery polycarboxylic acid high-performance water reducing agent.
The defoaming agent is one of an organic silicon defoaming agent and a polyether defoaming agent.
The stabilizer is one of modified bentonite and cellulose ether.
The expanding agent is a plastic expanding agent and a hardened expanding agent. Wherein the plastic expanding agent is one of molecular sieve, active carbon and p-nitrobenzene diazonium fluoroborate; the hardened expanding agent is one of calcium sulphoaluminate expanding agents and calcium oxide expanding agents.
The fiber is one or more of steel fiber, polypropylene fiber, basalt fiber and aramid fiber. More preferably, the fibers comprise at least steel fibers.
According to another aspect of the present invention, there is provided a method for preparing the above heat-resistant cement-based grouting material, the method comprising:
and putting cement, aggregate, mineral admixture, water reducing agent, defoaming agent, stabilizer, expanding agent and fiber into a double-shaft paddle gravity-free mixer according to the weight percentage, stirring for 3-5 min, adding water according to the corresponding weight percentage after the materials are taken out of the mixer, and continuously stirring for 3-5 min to obtain the heat-resistant cement-based grouting material.
Compared with the prior art, the invention has the beneficial effects that: the heat-resistant cement-based grouting material with the characteristics of heat resistance, high fluidity, high strength, micro expansion, self-compaction and the like is prepared by adopting high-quality raw materials and optimizing the proportion, and is suitable for foundation transformation or secondary grouting engineering with the heat-resistant requirement of 200-600 ℃. The initial fluidity of the grouting material prepared by the invention can reach 350mm, and the retention value of the fluidity for 30min can reach 325 mm; the 1d compressive strength can reach 43.5MPa, and the 28d compressive strength can reach 121.6 MPa. In particular, in the present invention,
(1) the polycarboxylic acid high-performance water reducing agent is adopted, the water consumption is controlled, the water-gel ratio of a gelling system is reduced, the water content of the gelling material is less after hardening, the structure is more compact, the porosity is lower, and the porosity is not easy to increase due to water loss when being heated.
(2) The composite use of the mineral admixture increases the compactness of an interface transition region, also reduces the porosity of the hardened cementing material and reduces high-temperature deformation; in addition, the mineral component SiO in the mineral admixture2And Al2O3With cement hydration products Ca (OH)2The chemical reaction between the calcium silicate and the calcium aluminate generates anhydrous calcium silicate and anhydrous calcium aluminate with stronger heat resistance, and the volume change of the hardened cementing material under the high-temperature condition is reduced.
(3) The composite use of the plastic expanding agent and the hardened expanding agent ensures that the grouting material has a certain expansion effect from a plastic stage to a hardening stage, realizes the micro-expansion of the grouting material and improves the volume stability of the material.
(4) The fiber is one or more of steel fiber, polypropylene fiber, basalt fiber and aramid fiber, and preferably at least comprises the steel fiber. The fiber used in the invention has good heat resistance and is stable in a high-temperature environment, and the compressive strength, the impact strength, the toughness and other properties of the grouting material are greatly improved.
The preparation method of the heat-resistant cement-based grouting material is simple, and grouting operation can be performed by adding water on site and uniformly stirring.
Detailed Description
The invention will be further illustrated with reference to specific examples.
Example 1
420kg of CA 50-I type aluminate cement, 490kg of graded flint clay, 21kg of silica fume, 48kg of ground slag powder, 4.7kg of polycarboxylic acid high-performance water reducing agent, 0.3kg of polyether defoamer, 1kg of modified bentonite, 0.2kg of molecular sieve, 5.5kg of UEA expanding agent, 7kg of steel fiber and 2.3kg of basalt fiber. And (3) putting the raw materials into a gravity-free mixer, stirring for 5min, taking out, adding 12.5% of water, and stirring for 5min to obtain the heat-resistant cement-based grouting material. The measured properties of the grouting material at each age under standard curing conditions are shown in table 1.
Table 1 example 1 physical properties of the grouting materials
The initial fluidity and the 30-min retention value of the fluidity of the grouting material prepared by the embodiment are both greater than 320mm, and the fluidity is good; the 28d compressive strength reaches 121.6MPa, and the strength is high; after the test piece is subjected to thermal shock for 20 times at the temperature of 600 ℃, the surface of the test piece does not fall off, the compression strength ratio of the soaking end of the test piece after the thermal shock to the standard maintenance 28d of the test piece is 91%, and the heat resistance is good. Can meet the technical requirement of secondary grouting of the equipment foundation with the maximum temperature of 600 ℃ in the service environment.
Example 2
390kg of P.O 42.5 ordinary portland cement, 510kg of graded quartz sand, 31kg of silica fume, 50kg of ground slag powder, 3.4kg of polycarboxylic acid high-performance water reducing agent, 0.3kg of organic siloxane defoamer, 0.3kg of cellulose ether, 0.2kg of molecular sieve, 11.8kg of UEA expanding agent and 3kg of steel fiber. And (3) putting the raw materials into a gravity-free mixer, stirring for 5min, taking out, adding 12.5% of water, and stirring for 3min to obtain the heat-resistant cement-based grouting material. The measured properties of the grouting material at each age under standard curing conditions are shown in table 2.
Table 2 example 2 physical properties of the grouting materials
The initial fluidity and the 30-min retention value of the fluidity of the grouting material prepared by the embodiment are both greater than 320mm, and the fluidity is good; the 28d compressive strength reaches 109.6MPa, and the strength is high; after 20 times of thermal shock at 300 ℃, the surface of the test block does not fall off, and the compression strength ratio of the soaked end of the test block to the standard maintenance 28d of the test block after the thermal shock is 92%, so that the heat resistance is good. Can meet the technical requirement of secondary grouting of the equipment foundation with the maximum temperature of 300 ℃ in the service environment.
Example 3
420kg of P.S.A 42.5 slag portland cement, 470kg of graded basalt sand, 17.5kg of silica fume, 70kg of ground fine fly ash, 4.5kg of polycarboxylic acid high-performance water reducing agent, 0.5kg of organic siloxane defoamer, 0.5kg of cellulose ether, 0.3kg of activated carbon, 11.7kg of calcium oxide type expanding agent, 3.5kg of steel fiber and 1.5kg of basalt fiber. And (3) putting the raw materials into a gravity-free mixer, stirring for 5min, taking out, adding 13% of water, and stirring for 4min to obtain the heat-resistant cement-based grouting material. The measured properties of the grouting material at each age under standard curing conditions are shown in table 3.
Table 3 example 3 physical properties of the grouting materials
The initial fluidity and 30min fluidity retention value of the grouting material prepared by the embodiment are both larger than 310mm, and the fluidity is good; the 28d compressive strength reaches 113.4MPa, and the strength is high; after 20 times of thermal shock at 500 ℃, the surface of the test block does not fall off, and the compression strength ratio of the soaked end of the test piece to the standard maintenance 28d of the test piece after the thermal shock is 92%, so that the heat resistance is good. Can meet the technical requirement of secondary grouting of equipment foundation with 500 ℃ service environment.
Example 4
415kg of P.II 42.5 Portland cement, 485kg of refractory brick crushed material, 20kg of silica fume, 60kg of ground slag powder, 4.2kg of polycarboxylic acid high-performance water reducing agent, 0.3kg of organic siloxane defoamer, 0.8kg of cellulose ether, 0.3kg of P-nitrobenzene diazo fluoroborate, 5.4kg of UEA expanding agent and 9kg of steel fiber. And (3) putting the raw materials into a gravity-free mixer, stirring for 5min, taking out, adding 12% of water, and stirring for 3min to obtain the heat-resistant cement-based grouting material. The measured properties of the grouting material at each age under standard curing conditions are shown in table 4.
Table 4 example 4 physical properties of the grouting materials
The performance index of the grouting material prepared by the embodiment meets the national standard of III-class grouting materials, the 28d compressive strength reaches 107.9MPa, and the strength is high; after the test piece is subjected to thermal shock for 20 times at 400 ℃, the surface of the test piece does not fall off, the compression strength ratio of the soaked end of the test piece after the thermal shock to the standard maintenance 28d of the test piece is 95%, and the heat resistance is good. Can meet the technical requirement of secondary grouting of the equipment foundation with the service environment of 400 ℃.
Example 5
385kg of P.O 42.5 ordinary portland cement, 510kg of graded alumina, 28kg of silica fume, 56kg of ground fly ash, 4kg of polycarboxylic acid high-performance water reducing agent, 0.5kg of polyether defoamer, 0.5kg of modified bentonite, 0.3kg of molecular sieve, 10.7kg of calcium oxide expanding agent, 3kg of steel fiber and 2kg of polypropylene fiber. And (3) putting the raw materials into a gravity-free mixer, stirring for 5min, taking out, adding 13.5% of water, and stirring for 3min to obtain the heat-resistant cement-based grouting material. The measured properties of the grouting material at each age under standard curing conditions are shown in table 5.
Table 5 example 5 physical properties of the grouting materials
The performance index of the grouting material prepared by the embodiment meets the national standard III type grouting material standard, and the grouting material has good fluidity; the 28d compressive strength is 87.5MPa, and the strength is high; after 20 times of thermal shock at 200 ℃, the surface of the test block does not fall off, and the compression strength ratio of the soaked end of the test piece to the standard maintenance 28d of the test piece after the thermal shock is 98 percent, so that the heat resistance is good. Can meet the technical requirement of secondary grouting of the equipment foundation with the service environment of 200 ℃.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The heat-resistant cement-based grouting material is characterized by comprising the following raw materials in percentage by weight:
and the sum of the components except water is 100 percent;
the mineral admixture is two or more of micro silicon powder, ground slag powder and ground fly ash; wherein the specific surface area of the micro silicon powder is 18000-20000 m2Per kg, the specific surface area of the ground slag powder is 400-3000 m2Per kg, the specific surface area of the pulverized coal ash is 400-800 m2/kg；
The expanding agent is a plastic expanding agent and a hardened expanding agent, wherein the plastic expanding agent is one of a molecular sieve, activated carbon and p-nitrobenzene diazo fluoborate; the hardened expanding agent is one of calcium sulphoaluminate expanding agents and calcium oxide expanding agents;
the fiber is steel fiber, or one or more of polypropylene fiber, basalt fiber and aramid fiber;
the water reducing agent is a powdery polycarboxylic acid high-performance water reducing agent.
2. The heat-resistant cement-based grouting material as claimed in claim 1, wherein the grouting material comprises the following raw materials in percentage by weight:
and the sum of the components excluding water is 100%.
3. The heat-resistant cement-based grouting material as claimed in claim 1, wherein the grouting material comprises the following raw materials in percentage by weight:
and the sum of the components excluding water is 100%.
4. A heat resistant cement-based grouting material as claimed in any one of claims 1 to 3, characterized in that the cement is one or more of ordinary portland cement, portland slag cement, portland cement, high alumina cement with a strength grade not lower than 42.5.
5. A heat resistant cement based grouting material as claimed in any one of claims 1 to 3, characterized in that the aggregate is one or more of quartz sand, basalt sand, alumina, flint clay, crushed pieces of refractory bricks.
6. A heat resistant cement-based grouting material as claimed in any one of claims 1 to 3, characterized in that the defoamer is one of silicone defoamer and polyether defoamer; the stabilizer is one of modified bentonite and cellulose ether.
7. A method of preparing a heat resistant cement-based grouting material as claimed in any one of claims 1 to 3, comprising: and putting cement, aggregate, mineral admixture, water reducing agent, defoaming agent, stabilizer, expanding agent and fiber into a double-shaft paddle gravity-free mixer according to the weight percentage, stirring for 3-5 min, adding water according to the weight percentage after the materials are taken out of the mixer, and continuously stirring for 3-5 min to obtain the heat-resistant cement-based grouting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592772.3A CN109592950B (en) | 2018-12-25 | 2018-12-25 | Heat-resistant cement-based grouting material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592772.3A CN109592950B (en) | 2018-12-25 | 2018-12-25 | Heat-resistant cement-based grouting material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109592950A CN109592950A (en) | 2019-04-09 |
| CN109592950B true CN109592950B (en) | 2021-07-30 |
Family
ID=65964444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811592772.3A Active CN109592950B (en) | 2018-12-25 | 2018-12-25 | Heat-resistant cement-based grouting material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109592950B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110627436A (en) * | 2019-09-24 | 2019-12-31 | 上海宝冶冶金工程有限公司 | Heat-resistant concrete |
| CN111116132A (en) * | 2019-12-25 | 2020-05-08 | 中冶建筑研究总院有限公司 | Grouting material for combined structure and assembly type building node and preparation method thereof |
| CN111470820A (en) * | 2020-04-16 | 2020-07-31 | 扬州大学 | Basalt fiber cement-based grouting material |
| CN111409193B (en) * | 2020-05-13 | 2021-01-08 | 安徽中志轨道交通装备制造有限公司 | Prefabricated sleeper and production equipment and method thereof |
| CN112028570A (en) * | 2020-08-19 | 2020-12-04 | 河海大学 | Active powder grouting material and preparation method thereof |
| CN112028571B (en) * | 2020-08-21 | 2021-06-18 | 湖北中南岩土工程有限公司 | Cast-in-place pile for enhancing bearing strength of deep and thick miscellaneous fill area and construction method |
| CN112341066A (en) * | 2020-10-21 | 2021-02-09 | 湖北工业大学 | Sleeve grouting material and preparation method thereof |
| CN113264741B (en) * | 2021-07-05 | 2022-08-23 | 洛阳理工学院 | 900 ℃ high-temperature-resistant C80 cement-based micro-expansion grouting material and preparation method and application thereof |
| CN113548855A (en) * | 2021-07-29 | 2021-10-26 | 上海申通地铁集团有限公司 | Cement-based grouting material and preparation method thereof |
| CN116102320A (en) * | 2023-02-23 | 2023-05-12 | 福建禄德辰新材料有限公司 | Proportioning method of high-temperature-resistant material for fireplace |
| CN116425493A (en) * | 2023-04-03 | 2023-07-14 | 武汉双键新材料股份有限公司 | Inorganic high-temperature-resistant grouting material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936372A (en) * | 2014-04-04 | 2014-07-23 | 中冶建筑研究总院有限公司 | Self-fluidized heat-resistant cement-based grouting material, as well as preparation method and application thereof |
| CN108439905A (en) * | 2018-04-25 | 2018-08-24 | 北京鸿锐嘉科技发展有限公司 | Slip casting binder and its performance parameter detection method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4493957B2 (en) * | 2003-09-05 | 2010-06-30 | 電気化学工業株式会社 | Polymer cement composition, polymer cement grout mortar, and repair material using the same |
-
2018
- 2018-12-25 CN CN201811592772.3A patent/CN109592950B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936372A (en) * | 2014-04-04 | 2014-07-23 | 中冶建筑研究总院有限公司 | Self-fluidized heat-resistant cement-based grouting material, as well as preparation method and application thereof |
| CN108439905A (en) * | 2018-04-25 | 2018-08-24 | 北京鸿锐嘉科技发展有限公司 | Slip casting binder and its performance parameter detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109592950A (en) | 2019-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109592950B (en) | Heat-resistant cement-based grouting material and preparation method thereof | |
| CN110357539B (en) | High-strength heat-resistant concrete and preparation method thereof | |
| CN113321467B (en) | Internal curing low-shrinkage lightweight aggregate ultrahigh-performance concrete and preparation method thereof | |
| CN105060792B (en) | A kind of low-dosage steel fibre modified powder concrete | |
| CN111499294B (en) | Ultrahigh-performance concrete dry powder and preparation method thereof | |
| CN107954656A (en) | A kind of regenerative micro powder concrete with superelevation ductility and preparation method thereof | |
| CN102976699B (en) | Low-temperature early strong bridge support anchoring material and preparation method thereof | |
| CN107793098B (en) | High-fluidity rapid repair mortar | |
| CN110498630B (en) | Concrete composite additive, preparation method thereof and concrete | |
| CN102180628A (en) | High-strength micro-expansion prestress anchoring grouting material and preparation method thereof | |
| CN107488018A (en) | A kind of sulphoaluminate cement base superelevation ductility concrete and preparation method thereof | |
| CN105060791A (en) | C60 self-compacting shrinkage-compensating anti-crack concrete suitable for steel anchor beam cable tower anchoring structure and preparation method of concrete | |
| CN101168483B (en) | High-performance panel concrete and preparation method thereof | |
| CN112125570A (en) | Admixture for shotcrete and preparation method and application thereof | |
| CN111943583A (en) | Low-shrinkage high-crack-resistance high-durability long-life concrete and preparation method thereof | |
| CN108409235A (en) | A kind of very-high performance fiber concrete and preparation method thereof | |
| CN107382203A (en) | A kind of large dosage dry slag early-strength High Strength Non-shrinking Filling Material | |
| CN115057670A (en) | Fast-hardening high-ductility inorganic sealing mortar | |
| RU2437854C1 (en) | Method to produce heat resistant concrete mix based on lime-slag binder and method to produce items from heat resistant concrete mix | |
| CN113636802A (en) | Ultrahigh-performance concrete and preparation method thereof | |
| CN116573898B (en) | High-durability concrete for high-speed railway | |
| Mijowska et al. | The effect of nanomaterials on thermal resistance of cement-based composites exposed to elevated temperature | |
| WO2015060666A1 (en) | High-strength mortar composition for repairing roads and method for preparing same | |
| CN115490448B (en) | Method for reducing self-shrinkage of ultra-high-performance concrete, high-strength concrete and high-strength mortar | |
| CN109467373A (en) | A kind of off-seam grouting material and preparation method thereof reinforced for railway tunnel |
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 |