CN113620663B - High-performance self-cleaning cement-based water-facing artistic high relief mortar and preparation method thereof - Google Patents
High-performance self-cleaning cement-based water-facing artistic high relief mortar and preparation method thereof Download PDFInfo
- Publication number
- CN113620663B CN113620663B CN202110927951.3A CN202110927951A CN113620663B CN 113620663 B CN113620663 B CN 113620663B CN 202110927951 A CN202110927951 A CN 202110927951A CN 113620663 B CN113620663 B CN 113620663B
- Authority
- CN
- China
- Prior art keywords
- water
- cement
- mortar
- artistic
- high relief
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
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)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to high-performance self-cleaning cement-based water-facing artistic high relief mortar and a preparation method thereof. The invention has simple use method and lower cost, not only has good hydrophobic and self-cleaning functions, but also has high strength, high toughness, high crack resistance and high damage resistance.
Description
Technical Field
The invention belongs to the field of relief mortar, and particularly relates to high-performance self-cleaning cement-based water-facing artistic high relief mortar and a preparation method thereof.
Background
The large artistic high relief sculpture applied to the upstream surface of the river bank puts forward new requirements on manufacturing materials of the relief sculpture. The traditional stone carving has the defects of high cost, long operation time, complex maintenance and the like, and the reinforced gypsum-based plastic material is not free from cracking, peeling and the like under the conditions of wetting and water facing when being manufactured on the shore.
CN112239340A discloses an antifouling lime art mortar, which comprises the following raw materials in parts by weight: the antifouling lime art mortar well solves the problems of poor antifouling and seepage-proofing performance and strength and pale sense, has strong antifouling and seepage-proofing performance and strength, and enables the surface to have a vicious feeling of historical culture. But has low strength and no waterproof effect. CN104098307A discloses a sculpture mortar, which consists of the following components: 32.5R ordinary portland cement, 40-80 meshes of sand (quartz sand), 50-70 meshes of lightweight aggregate, cellulose ether, dispersible latex powder, a water reducing agent, silicon powder, lignin fiber, polypropylene fiber and the like, is convenient to operate and can be directly used without adding any other materials. Has easy application and excellent workability. The disadvantages are also lower strength and no water-proofing effect.
Therefore, a mortar material having both good waterproof effect and high strength is required to be found.
Disclosure of Invention
The invention aims to solve the technical problem of providing high-performance self-cleaning cement-based water-facing artistic high relief mortar and a preparation method thereof, wherein the high-performance self-cleaning cement-based water-facing artistic high relief mortar not only has good hydrophobic and self-cleaning effects, but also has high strength, high toughness, high crack resistance and high damage resistance.
The invention provides high-performance self-cleaning cement-based water-facing artistic high relief mortar which comprises the following components in parts by weight:
40-45 parts of cement;
15-30 parts of fly ash;
30-40 parts of steel slag sand;
and relative to the total mass of the materials, the material also comprises the following components:
the grain size of the steel slag sand is 1-2mm.
The tensile strength of the polypropylene fiber is more than 600MPa, and the elastic modulus is 5-7GPa.
The water reducing agent is a polycarboxylic acid high-efficiency water reducing agent.
The invention also provides a preparation method of the high-performance self-cleaning cement-based water-facing artistic high relief mortar, which comprises the following steps:
putting cement, fly ash, steel slag sand, a water reducing agent, biological glue, a defoaming agent and an expanding agent into a stirrer according to a ratio and stirring to obtain a dry powder material; and then adding polypropylene fiber and stirring, adding water twice and stirring uniformly to obtain the mortar.
The water is added twice, specifically, two thirds of the total amount of the water is added for the first time, and the rest amount of water is added for the second time.
The invention also provides application of the high-performance self-cleaning cement-based water-facing artistic high relief mortar, which comprises the following steps:
cleaning floating ash on the surface of a base layer, making mortar into an artistic model according to a design pattern, carving and polishing after initial setting, and finally brushing a water repellent on the surface of a finished product.
The water repellent is hydrogen-containing silicone oil.
Advantageous effects
The preparation method and the use method of the invention are simple, the cost is lower, and the invention not only has good hydrophobic and self-cleaning functions, but also has high strength, high toughness, high crack resistance and high damage resistance. The steel slag has potential activity and can be used as aggregate to improve the strength; the polypropylene fiber has good durability, and can improve the crack resistance of the material; the surface of the material can have a waterproof effect by coating a water repellent on the surface, and the water repellent angle can reach 150 degrees; the coal ash can reduce the hydration heat of cement and reduce the cracking of materials; various harmful elements are not easy to enter the concrete along with water molecules, so that the concrete generates chemical reaction to accelerate weathering and aging, and dust only adsorbs the surface of the concrete and is easy to wash away by water, thereby keeping self-cleaning. In addition, the invention belongs to the reutilization of industrial solid wastes, can greatly utilize the industrial solid wastes to meet the requirement of resource regeneration and recycling, not only reduces the production cost, but also has environmental protection advantage and has higher social benefit and economic benefit.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention can be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the claims appended to the present application.
The example product sources are as follows:
the water repellent is hydrogen-containing silicone oil and is provided by hydrophobic science and technology (Jiaxing) of hydrophobic nanometer of Shunkco.
The cement is P.O42.5 ordinary portland cement, provided by Taicang conch cement Co.
The fly ash is secondary ash and is provided for Shanghai stone cave entrance power plants.
The steel slag sand is 1-2mm, and is provided by Shanghai Zhongzhou metallurgy environmental engineering science and technology limited company.
Polypropylene fiber, model MA20, with tensile strength greater than 600MPa and elastic modulus of 5-7GPa, provided by Ningbo Shi Ke New materials science and technology Co.
The water reducing agent is a polycarboxylic acid high-efficiency water reducing agent provided by Wacker chemical (China) Co.
The biogel is model VX80, available from Shunhua Dow.K.K..
The model of the defoaming agent is P803, the active component is 65%, and the defoaming agent is provided by Shanghai-phobia metallurgical industry Co., ltd;
the expanding agent is a plastic expanding agent with the model number of BP70, expands in 3 hours and is provided by Shanghai-phobia and metallurgy industry Co., ltd;
the water is tap water.
The compressive strength and the flexural strength test method refer to the GBT 50081-2019 concrete physical and mechanical property test method standard.
Example 1
The formula comprises, by mass, 40 parts of cement, 20 parts of fly ash, 40 parts of steel slag sand, 1.5% of polypropylene fibers, 0.1% of water reducing agent, 0.02% of biogel, 0.02% of defoaming agent, 0.02% of expanding agent and 0.2 times of water, and the surface of the molded and carved material is coated with hydrogen-containing silicone oil.
The method comprises the following steps of respectively metering cement, fly ash, steel slag sand, a water reducing agent, biological glue, a defoaming agent and an expanding agent, putting all ingredients into a stirrer, stirring to obtain a dry powder material, wherein the stirring time is not less than 2 minutes, adding polypropylene fibers into the obtained dry powder material in batches according to a set mixing ratio, uniformly stirring, wherein the stirring time is not less than 2 minutes, adding water into the obtained material twice and uniformly stirring, wherein the water is added to the obtained material for the first time by two thirds of the water consumption, and the residual water is added to the obtained material for the second time. The stirring time is not less than 6 minutes, and the fiber cement-based mixture is obtained. The surface of a base layer is thoroughly cleaned before construction, the fiber cement-based mixture is made into an artistic model according to a design pattern, carving and polishing are carried out after initial setting, and finally a layer of water repellent is coated on the surface of a finished product. The detection shows that the compressive strength is 44.5MPa in 28 days, the breaking strength is 8.2MPa in 28 days, and the hydrophobic angle is 151.9 degrees.
Example 2
The formula comprises 45 parts by mass of cement, 15 parts by mass of fly ash, 40 parts by mass of steel slag sand, 1.5% by mass of polypropylene fiber, 0.2% by mass of water reducing agent, 0.02% by mass of biogel, 0.02% by mass of defoaming agent, 0.02% by mass of expanding agent and 0.2 times of water, and the surface of the molded and carved material is coated with hydrogen-containing silicone oil.
The method comprises the following steps of respectively metering cement, fly ash, steel slag sand, a water reducing agent, biological glue, a defoaming agent and an expanding agent, putting all ingredients into a stirrer, stirring to obtain a dry powder material, wherein the stirring time is not less than 2 minutes, adding polypropylene fibers into the obtained dry powder material in batches according to a set mixing ratio, uniformly stirring, wherein the stirring time is not less than 2 minutes, adding water into the obtained material twice and uniformly stirring, wherein the water is added to the obtained material for the first time by two thirds of the water consumption, and the residual water is added to the obtained material for the second time. The stirring time is not less than 6 minutes, and the fiber cement-based mixture is obtained. The surface of the base layer should be thoroughly cleaned of floating ash before construction, the fiber cement-based mixture is made into an artistic model according to a design pattern, carving and polishing are carried out after initial setting, and finally a layer of water repellent is coated on the surface of a finished product. The detection shows that the compressive strength is 46.5MPa in 28 days, the breaking strength is 9.1MPa in 28 days, and the hydrophobic angle is 152.1 degrees.
Example 3
The formula comprises 40 parts by mass of cement, 30 parts by mass of fly ash, 30 parts by mass of steel slag sand, 1.5% of polypropylene fiber, 0.1% of water reducing agent, 0.02% of biogel, 0.02% of defoaming agent, 0.02% of expanding agent and 0.2 times of water, and the surface of the material is coated with hydrogen-containing silicone oil after molding and carving.
The method comprises the following steps of respectively metering cement, fly ash, steel slag sand, a water reducing agent, biological glue, a defoaming agent and an expanding agent, putting all ingredients into a stirrer, stirring to obtain a dry powder material, wherein the stirring time is not less than 2 minutes, adding polypropylene fibers into the obtained dry powder material in batches according to a set mixing ratio, uniformly stirring, wherein the stirring time is not less than 2 minutes, adding water into the obtained material twice and uniformly stirring, wherein the water is added to the obtained material for the first time by two thirds of the water consumption, and the residual water is added to the obtained material for the second time. The stirring time is not less than 6 minutes, and the fiber cement-based mixture is obtained. The surface of the base layer should be thoroughly cleaned of floating ash before construction, the fiber cement-based mixture is made into an artistic model according to a design pattern, carving and polishing are carried out after initial setting, and finally a layer of water repellent is coated on the surface of a finished product. The test shows that the 28-day compressive strength is 45.2MPa, the 28-day flexural strength is 8.9MPa and the hydrophobic angle is 152.0 degrees.
Example 4
The formula comprises 40 parts by mass of cement, 25 parts by mass of fly ash, 35 parts by mass of steel slag sand, 1.2% of polypropylene fiber, 0.2% of water reducing agent, 0.02% of biogel, 0.02% of defoaming agent, 0.02% of expanding agent and 0.2 times of water, and the surface of the material to be molded and carved is coated with hydrogen-containing silicone oil.
The method comprises the following steps of respectively metering cement, fly ash, steel slag sand, a water reducing agent, biological glue, a defoaming agent and an expanding agent, putting all ingredients into a stirrer, stirring to obtain a dry powder material, wherein the stirring time is not less than 2 minutes, adding polypropylene fibers into the obtained dry powder material in batches according to a set mixing ratio, uniformly stirring, wherein the stirring time is not less than 2 minutes, adding water into the obtained material twice and uniformly stirring, wherein the water is added to the obtained material for the first time by two thirds of the water consumption, and the residual water is added to the obtained material for the second time. The stirring time is not less than 6 minutes, and the fiber cement-based mixture is obtained. The surface of the base layer should be thoroughly cleaned of floating ash before construction, the fiber cement-based mixture is made into an artistic model according to a design pattern, carving and polishing are carried out after initial setting, and finally a layer of water repellent is coated on the surface of a finished product. The detection shows that the 28-day compressive strength is 45.6MPa, the 28-day flexural strength is 8.7MPa and the hydrophobic angle is 152.2 degrees.
Comparative example 1
The formula comprises 80 parts by mass of cement, 20 parts by mass of fly ash, 1.5% of polypropylene fiber, 0.1% of water reducing agent, 0.02% of biogel, 0.02% of defoaming agent, 0.02% of expanding agent and 0.2 times of water, and the surface of the molded and carved material is coated with hydrogen-containing silicone oil.
The preparation method and the using method are the same as the example 1. The test shows that the compressive strength of 28 days is 32.4MPa, the breaking strength of 28 days is 5.6MPa, and the hydrophobic angle is 140.1 degrees.
Comparative example 2
The formula comprises 80 parts by mass of steel slag sand, 20 parts by mass of fly ash, polypropylene fiber with the material amount of 1.5%, a water reducing agent with the material amount of 0.1%, biological glue with the material amount of 0.02%, a defoaming agent with the material amount of 0.02%, an expanding agent with the material amount of 0.02% and water with the material amount of 0.2 times, and the surface of the material formed and carved is coated with hydrogen-containing silicone oil.
The preparation method and the using method are the same as the example 1. The test shows that the 28-day compressive strength is 15.1MPa, the 28-day flexural strength is 2.1MPa, and the hydrophobic angle is 148.2 degrees.
Comparative example 3
The formula comprises 60 parts by mass of cement, 40 parts by mass of steel slag sand, polypropylene fiber with the material amount of 1.5%, a water reducing agent with the material amount of 0.1%, biological glue with the material amount of 0.02%, a defoaming agent with the material amount of 0.02%, an expanding agent with the material amount of 0.02% and water with the material amount of 0.2 times, and the surface of the material to be molded and carved is coated with hydrogen-containing silicone oil.
The preparation method and the using method are the same as the example 1. The test shows that the 28-day compressive strength is 40.3MPa, the 28-day flexural strength is 7.1MPa, and the hydrophobic angle is 141.8 degrees.
Claims (8)
1. A high-performance self-cleaning cement-based water-facing artistic high relief is characterized in that: the mortar for preparing the high relief comprises the following components in parts by weight: 40-45 parts of cement; 15-30 parts of fly ash; 30-40 parts of steel slag sand;
and relative to the total mass of the materials, the material also comprises the following components: 1-3% of polypropylene fiber; 0.1 to 0.2 percent of water reducing agent; 0.01-0.03% of biological glue; 0.01 to 0.03 percent of defoaming agent; 0.01 to 0.03 percent of expanding agent; 0.2-0.25 times of water;
the preparation method of the high-performance self-cleaning cement-based water-facing artistic high relief comprises the following steps: cleaning floating ash on the surface of a base layer, making mortar into an artistic model according to a design pattern, carving and polishing after initial setting, and finally coating a water repellent on the surface of a finished product.
2. The high relief according to claim 1, wherein: the grain size of the steel slag sand is 1-2mm.
3. The high relief according to claim 1, wherein: the tensile strength of the polypropylene fiber is more than 600MPa, and the elastic modulus is 5-7GPa.
4. The high relief according to claim 1, characterized in that: the water reducing agent is a polycarboxylic acid high-efficiency water reducing agent.
5. The high relief according to claim 1, characterized in that said mortar preparation method comprises: placing cement, fly ash, steel slag sand, a water reducing agent, biological glue, a defoaming agent and an expanding agent into a stirrer according to a ratio and stirring to obtain a dry powder material; and then adding polypropylene fiber and stirring, adding water twice and stirring uniformly to obtain the mortar.
6. The high relief according to claim 5, characterized in that: the water is added twice, specifically, two thirds of the total amount of the water is added for the first time, and the rest amount of water is added for the second time.
7. A method for preparing the high-performance self-cleaning cement-based water-facing artistic high relief as claimed in claim 1, wherein: the method comprises the following steps: cleaning floating ash on the surface of a base layer, making mortar into an artistic model according to a design pattern, carving and polishing after initial setting, and finally coating a water repellent on the surface of a finished product.
8. The method of claim 7, wherein: the water repellent is hydrogen-containing silicone oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110927951.3A CN113620663B (en) | 2021-08-13 | 2021-08-13 | High-performance self-cleaning cement-based water-facing artistic high relief mortar and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110927951.3A CN113620663B (en) | 2021-08-13 | 2021-08-13 | High-performance self-cleaning cement-based water-facing artistic high relief mortar and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113620663A CN113620663A (en) | 2021-11-09 |
| CN113620663B true CN113620663B (en) | 2022-11-11 |
Family
ID=78385152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110927951.3A Active CN113620663B (en) | 2021-08-13 | 2021-08-13 | High-performance self-cleaning cement-based water-facing artistic high relief mortar and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113620663B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85203990U (en) * | 1985-09-21 | 1986-08-13 | 廖加华 | Architectural precast brick with color balls |
| CN100546933C (en) * | 2007-03-20 | 2009-10-07 | 首钢总公司 | Steel slag heat-insulating finishing mortar |
| CN201922834U (en) * | 2010-11-04 | 2011-08-10 | 刘鸿达 | Novel artificial composite relief wood |
| CN104556848B (en) * | 2013-10-11 | 2017-04-26 | 中冶建筑研究总院有限公司 | Polymer spraying mortar and preparation method thereof |
| CN104098307B (en) * | 2014-06-27 | 2016-05-11 | 苏州他石景观工程技术有限公司 | A kind of sculpture mortar |
| KR101886179B1 (en) * | 2016-10-05 | 2018-08-07 | 임기채 | Method for waterproofing with Ceramics and waterproofing material |
| CN108516741B (en) * | 2018-04-26 | 2020-12-01 | 张家港江苏科技大学产业技术研究院 | Steel slag sand-straw ash composite doping mortar and preparation method thereof |
| CN110713369B (en) * | 2019-11-05 | 2021-12-24 | 苏州金螳螂文化发展股份有限公司 | Sculpture cement and preparation method thereof |
-
2021
- 2021-08-13 CN CN202110927951.3A patent/CN113620663B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113620663A (en) | 2021-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2020101096A4 (en) | The Preparation Method of Steel Fiber Reinforced Ultra-high Performance Concrete by Synergistic Utilization of Multi-solid Waste | |
| CN112341123B (en) | Seawater corrosion resistant ceramic tile adhesive and production method thereof | |
| CN108947412B (en) | Ecological rust-resistant seawater sea sand corrosion-resistant marine concrete | |
| CN101560084B (en) | Environmental-friendly waterproof polymer mortar | |
| CN113354369B (en) | High-strength recycled concrete and preparation method thereof | |
| CN107540309B (en) | Slope protection prefabricated part concrete containing iron tailings and preparation method thereof | |
| CN109020369B (en) | Concrete material for 3D printing and preparation method | |
| CN110655369A (en) | Concrete and preparation method thereof | |
| CN113511870B (en) | Solid waste base marine repair material and preparation method thereof | |
| CN110835251A (en) | Ultrahigh-performance concrete and preparation method thereof | |
| CN106904906B (en) | A kind of composite mortar and preparation method thereof | |
| CN111943626A (en) | Gypsum-based wall leveling material and preparation method and use method thereof | |
| CN114634338A (en) | High-ductility cement-based composite material for wind-blown sand in desert and preparation method thereof | |
| CN112079594A (en) | Geological polymer high-strength mortar for concrete structure repair and preparation method thereof | |
| CN115140988A (en) | Lightweight high-toughness cement-based material and preparation method and application thereof | |
| CN108298915A (en) | A kind of exterior wall Crack-resistance Front Mortar and preparation method thereof containing fiberglass recycled fiber | |
| CN110845973A (en) | Flexible reinforcing material of ceramic tile glue and preparation method and application thereof | |
| CN112028534B (en) | Early-strength water reducing agent, production process and application thereof | |
| CN113620663B (en) | High-performance self-cleaning cement-based water-facing artistic high relief mortar and preparation method thereof | |
| CN114349418B (en) | Fiber reinforced cement-based composite marble backing mortar and preparation method thereof | |
| CN104591664B (en) | Long-life concrete for steel-mixed combination beam hogging moment area and preparation method thereof | |
| CN113831090B (en) | Large-flow-state anti-seepage impact-resistant grinding hydraulic concrete and preparation method thereof | |
| CN114735985A (en) | Anti-cracking high-strength coral mortar and preparation method thereof | |
| CN101450846A (en) | Composite type slag powder and production method thereof | |
| CN113072339A (en) | Preparation method of high-toughness cement-based composite material |
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 |