CN113213861A - Cement-based self-leveling mortar and preparation process thereof - Google Patents
Cement-based self-leveling mortar and preparation process thereof Download PDFInfo
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- CN113213861A CN113213861A CN202110674596.3A CN202110674596A CN113213861A CN 113213861 A CN113213861 A CN 113213861A CN 202110674596 A CN202110674596 A CN 202110674596A CN 113213861 A CN113213861 A CN 113213861A
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- cement
- parts
- based self
- leveling mortar
- epoxy resin
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Classifications
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/60—Flooring materials
- C04B2111/62—Self-levelling compositions
-
- 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
Abstract
The application relates to the technical field of dry-mixed mortar, and particularly discloses cement-based self-leveling mortar and a preparation process thereof. A cement-based self-leveling mortar comprises 300 parts of 200-plus cement, 20-60 parts of gypsum, 50-100 parts of sulphoaluminate cement, 0.5-1.5 parts of cellulose, 0.8-2.0 parts of water reducing agent, 0.5-1.0 parts of defoaming agent, 0.2-0.5 part of accelerating agent, 0.5-1.2 parts of retarder, 600 parts of graded sand, 180 parts of 130-plus filler, 30-50 parts of epoxy resin and 20-50 parts of bean flour; this application has the advantage that wearability is good, difficult dust that produces.
Description
Technical Field
The application relates to the technical field of dry-mixed mortar, in particular to cement-based self-leveling mortar and a preparation process thereof.
Background
The cement-based self-leveling mortar is prepared by taking cement and quartz sand as main raw materials and adding an additive to the main raw materials and mechanically and uniformly mixing the raw materials and the additive; during construction, water is added on site, the mixture can be used, and a high-flatness base surface can be obtained by slightly unfolding the mixture with a tool.
A related Chinese patent with publication number CN105936592B discloses a cement-based self-leveling mortar, which comprises the following components in parts by weight: 350-550 parts of portland cement, 350-550 parts of gypsum, 550 parts of a polycarboxylate water reducer, 5-10 parts of a silicone concrete defoamer, 1-3 parts of a retarder and 800-1100 parts of sand, wherein the polycarboxylate water reducer contains a salt (A), the retarder contains an acid component (B), and the anion of the salt (A) is the same as the anion acid radical of the acid component (B).
The inventor thinks that the problem that drops can appear in above-mentioned cement base self-leveling mortar top layer, and then easily produces the dust after the hardening of making level is carried out to the ground in the factory building to the ground that uses above-mentioned cement base self-leveling mortar, after comparatively dry and ground receive the friction in the factory building.
Disclosure of Invention
In order to reduce the generation of dust, the application provides a cement-based self-leveling mortar and a preparation process thereof.
In a first aspect, the application provides a cement-based self-leveling mortar, which adopts the following technical scheme:
the cement-based self-leveling mortar comprises, by weight, 300 parts of cement 200-60 parts of gypsum, 50-100 parts of sulphoaluminate cement, 0.5-1.5 parts of cellulose, 0.8-2.0 parts of a water reducing agent, 0.5-1.0 parts of a defoaming agent, 0.2-0.5 part of a setting accelerator, 0.5-1.2 parts of a retarder, 600 parts of graded sand 400-containing materials, 180 parts of a filler 130-containing materials, 30-50 parts of epoxy resin and 20-50 parts of bean flour.
By adopting the technical scheme, the sulphoaluminate cement is added into the cement-based self-leveling mortar, when the sulphoaluminate cement is dissolved in water, calcium oxide in the sulphoaluminate cement can react with water to generate calcium carbonate, and a certain amount of heat can be generated in the reaction process, the gypsum contains calcium sulfate, the calcium carbonate and the calcium sulfate can be slightly dissolved in the water, after the bean flour is dissolved in the water, protein in the bean flour can form a plurality of colloid particles in the water, the calcium carbonate and the calcium sulfate are slightly dissolved in positive ions and negative ions dissociated in the water, the balance between the colloid particles and the water can be broken, the protein is coagulated, the coagulated protein is combined with epoxy resin dissolved in the water, a sticky group with a certain adsorption capacity can be formed, the sticky group can enable raw materials such as cement, graded sand, filler and the like in the cement-based self-leveling mortar to be tightly attached together, and after the cement-based self-leveling mortar is dried, the raw materials are closely adhered together, so that the wear resistance of the cement-based self-leveling mortar is improved, and when the cement-based self-leveling mortar is subjected to external force impact and external force friction, the phenomenon that the surface layer falls off is not easy to occur, and further the generation of dust is reduced.
Preferably, the epoxy resin is an aliphatic epoxy resin.
By adopting the technical scheme, after the aliphatic epoxy resin is added into the cement-based self-leveling mortar, after the cement-based self-leveling mortar is cured, the cement-based self-leveling mortar has higher strength and toughness, and when the cement-based self-leveling mortar is impacted by external force, the problem of fracture is not easy to occur.
Preferably, the cellulose includes carboxymethyl cellulose and ethyl cellulose.
By adopting the technical scheme, the carboxymethyl cellulose and the ethyl cellulose are matched with each other, the anti-cracking performance of the cement-based self-leveling mortar can be improved, the cement-based self-leveling mortar is not easy to crack when being subjected to external impact, the carboxymethyl cellulose and the ethyl cellulose are matched with each other, the bound water in the cement-based self-leveling mortar can be captured, after the cement-based self-leveling mortar is used for a long time, the bound water in the cement-based self-leveling mortar is not easy to lose, the toughness of the cement-based self-leveling mortar can be further ensured, and the cement-based self-leveling mortar is not easy to crack when being subjected to external impact.
Preferably, the weight ratio of the carboxymethyl cellulose to the ethyl cellulose is 8-12: 1.
By adopting the technical scheme, the carboxymethyl cellulose and the ethyl cellulose are in the optimal proportion, and the carboxymethyl cellulose and the ethyl cellulose in the proportion can reduce the water loss of the cement-based self-leveling mortar to the maximum extent and keep the toughness of the cement-based self-leveling mortar.
Preferably, the gypsum is desulfurized gypsum.
Through adopting above-mentioned technical scheme, use the desulfurization gypsum, can improve the roughness of cement base self-leveling mortar, the desulfurization gypsum granularity is less, and the cement base self-leveling mortar who has added the gypsum that leaks takes off sets the back surface more level and more smooth, and harmful component is less in the desulfurization gypsum, has reduced the volatilization of harmful substance.
Preferably, the filler comprises fly ash, silicon powder and talcum powder, and the weight ratio of the fly ash to the silicon powder to the talcum powder is as follows: 20-22: 10-12: 1 of fly ash, silicon powder and talcum powder.
By adopting the technical scheme, the gaps of the cement-based self-leveling mortar can be filled by matching the fly ash, the silicon powder and the talcum powder, so that the problem of gaps among other raw materials is reduced, the wear resistance of the solidified cement-based self-leveling mortar can be improved, and the cement-based self-leveling mortar is further prevented from falling off to generate dust.
Preferably, the cement is portland cement.
In a second aspect, the application provides a preparation process of cement-based self-leveling mortar, which adopts the following technical scheme: a preparation process of cement-based self-leveling mortar comprises the following steps: the cement-based self-leveling mortar is prepared by uniformly mixing the silicate cement, the desulfurized gypsum, the sulphoaluminate cement, the cellulose, the water reducing agent, the defoaming agent, the coagulant, the slow release machine, the graded sand, the filler, the epoxy resin and the bean flour according to the formula ratio.
By adopting the technical scheme, the cement-based self-leveling mortar is prepared, the process steps are simple, and the preparation efficiency is high.
In summary, the present application has the following beneficial effects:
1. because the sulphoaluminate cement, the desulfurized gypsum, the epoxy resin and the bean flour are added, when the sulphoaluminate cement and the desulfurized gypsum are mixed in water, calcium carbonate and calcium sulfate can be generated, the calcium carbonate and the calcium sulfate can enable protein in the bean flour to be coagulated, the coagulated protein is combined with the epoxy resin, a sticky group with strong adsorption capacity can be formed, the sticky group can improve the adhesion tightness among other raw materials, the wear resistance of the cement-based self-leveling mortar can be further improved, and the problem of dust generated by easy falling of the cement-based self-leveling mortar is reduced.
2. The cellulose in the application is preferably compounded by carboxymethyl cellulose and ethyl cellulose, so that the water retention of the cement-based self-leveling mortar can be improved, the carboxymethyl cellulose and the ethyl cellulose are stable in property, the cement-based self-leveling mortar can have better water retention at low temperature and high temperature, and is not easy to lose water, so that the toughness of the cement-based self-leveling mortar can be kept, and the cement-based self-leveling mortar is not easy to break when being impacted by external force.
3. The filler comprises fly ash, silica powder and talcum powder, the surface of the fly ash is rough, and the silica powder and the talcum powder can be filled in the rough part of the fly ash, so that the cement-based self-leveling mortar is more compact after being solidified, and further the cement-based self-leveling mortar has better weak acid resistance.
Detailed Description
The present application will be described in further detail with reference to examples.
Preparation example
Preparation of Bean powder
Taking dried soybeans, putting the soybeans into water with the mass ratio of the soybeans to the soybeans of 1: 3, soaking the soybeans for 24 hours, fishing out the soybeans after soaking is finished, adding water with the volume of 1: 1 of the soybeans, crushing the soybeans with the water, filtering a mixture of the crushed soybeans and the water by using gauze to obtain a filtrate which is soybean liquid, carrying out vacuum concentration on the soybean liquid, concentrating to 20% to obtain a concentrated solution, and carrying out spray drying on the concentrated solution to obtain the soybean powder.
Examples
The present application will be described in further detail with reference to the following examples, wherein the sources of the raw materials used in the present application are shown in Table 1 unless otherwise specified.
TABLE 1 specification and sources of raw materials used in the present application
Example 1
The preparation process of the cement-based self-leveling mortar comprises the following steps: 200 kg of Portland cement, 20 kg of desulfurized gypsum, 50 kg of sulphoaluminate cement, 0.55 kg of ethyl cellulose, 0.445 kg of carboxymethyl cellulose, 0.8 kg of water reducing agent, 0.5 kg of antifoaming agent, 0.2 kg of coagulant, 0.5 kg of retarder, 400 kg of graded sand, 93.87 kg of fly ash, 27.85 kg of silicon powder, 9.28 kg of talcum powder, 30 kg of aliphatic epoxy resin and 20 kg of bean flour are uniformly mixed to obtain the cement-based self-leveling mortar.
Example 2
The preparation process of the cement-based self-leveling mortar comprises the following steps: the cement based self-leveling mortar is prepared by uniformly mixing 250 kg of Portland cement, 40 kg of desulfurized gypsum, 80 kg of sulphoaluminate cement, 0.12 kg of ethyl cellulose, 1.08 kg of carboxymethyl cellulose, 1.4 kg of water reducing agent, 0.8 kg of antifoaming agent, 0.35 kg of coagulant, 0.9 kg of retarder, 500 kg of graded sand, 110 kg of fly ash, 35 kg of silicon powder, 10 kg of talcum powder, 40 kg of aliphatic epoxy resin and 40 kg of soybean flour, and obtaining the cement based self-leveling mortar.
Example 3
The preparation process of the cement-based self-leveling mortar comprises the following steps: uniformly mixing 300 kg of Portland cement, 60 kg of desulfurized gypsum, 100 kg of sulphoaluminate cement, 0.12 kg of ethyl cellulose, 1.38 kg of carboxymethyl cellulose, 2.0 kg of water reducing agent, 1.0 kg of antifoaming agent, 0.5 kg of coagulant, 1.2 kg of retarder, 600 kg of graded sand, 127 kg of fly ash, 42.4 kg of silicon powder, 10.6 kg of talcum powder, 50 kg of aliphatic epoxy resin and 50 kg of bean flour to obtain the cement-based self-leveling mortar
Example 4
The difference between the embodiment and the embodiment 1 is that the desulfurized gypsum is replaced by natural gypsum with the same quality, and the other raw material proportion is the same as that of the embodiment 1.
Example 5
The difference between this example and example 1 is that carboxymethyl cellulose and ethyl cellulose are replaced by hydroxypropyl methyl cellulose with the same mass, and the other raw material ratio is the same as that of example 1.
Example 6
The difference between this example and example 1 is that carboxymethyl cellulose and ethyl cellulose are replaced by carboxymethyl cellulose of the same mass, and the other raw material ratios are the same as example 1.
Example 7
The difference between this example and example 1 is that carboxymethyl cellulose and ethyl cellulose are replaced by ethyl cellulose of the same mass, and the other raw material ratios are the same as example 1.
Example 8
The difference between the embodiment and the embodiment 1 is that the fly ash, the silica powder and the talcum powder are replaced by the same-mass mortar filler, and the other raw material proportions are the same as the embodiment 1.
Example 9
The difference between the embodiment and the embodiment 1 is that the fly ash, the silica powder and the talcum powder are replaced by the same mass of fly ash, and the other raw material proportions are the same as the embodiment 1.
Example 10
The difference between the embodiment and the embodiment 1 is that the fly ash, the silica powder and the talcum powder are replaced by the same-quality silica powder, and the other raw material proportions are the same as the embodiment 1.
Example 11
The difference between the example and the example 1 is that the aliphatic epoxy resin is replaced by the alicyclic epoxy resin with the same mass, and the other raw material ratio is the same as that of the example 1.
Comparative example
Comparative example 1
The comparative example is different from example 1 in that the raw materials do not contain desulfurized gypsum, and the other raw material ratios are the same as example 1.
Comparative example 2
The comparative example is different from example 1 in that the raw materials do not contain carboxymethyl cellulose and ethyl cellulose, and the other raw material ratio is the same as that of example 1.
Comparative example 3
The comparative example is different from example 1 in that the raw materials do not contain aliphatic epoxy resin, and the other raw material proportions are the same as example 1.
Comparative example 4
The comparative example is different from example 1 in that the raw materials do not contain bean flour, and the other raw material ratio is the same as example 1.
Comparative example 5
The comparative example is different from example 1 in that the raw materials do not contain bean flour and epoxy resin, and the other raw material ratio is the same as that of example 1.
Comparative example 6
The comparative example is different from example 1 in that the raw materials do not contain bean flour, epoxy resin, desulfurized gypsum and sulphoaluminate cement, and the other raw material proportions are the same as example 1.
Performance test
The cement-based self-leveling mortars of examples 1 to 11 and comparative examples 1 to 6 were subjected to abrasion resistance, 24-hour compressive strength and 24-hour flexural strength tests in accordance with "cement-based self-leveling mortar for floor-JC/T985-2017", and the test results were collated and recorded in table 2.
The cement-based self-leveling mortars of examples 1 to 11 and comparative examples 1 to 6 were subjected to a water retention test according to the water retention test specified in section 7 of "basic performance test method for building mortar standard-JGJ/T70-2009", and the test results were collated and recorded in table 2.
TABLE 2 test results of examples 1-12 and comparative examples 1-5
And (3) analyzing test results:
1. as can be seen by combining examples 1-11 and Table 2, the cement-based self-leveling mortar prepared by the method has the wear resistance of no higher than 370mm when in use3The 24-hour compressive strength is not less than 6.4MPa, the 24-hour flexural strength is not less than 2.2MPa, and the water retention is not less than 0.83%, and it can be seen from the analysis of the data of examples 1 to 11 that example 1 is the best for examples 1 to 11Examples are given.
2. Combining examples 1 and 4 with table 2, it can be seen that, when the desulfurized gypsum is replaced by natural gypsum, there is a certain adverse effect on the abrasion resistance, the 24h compressive strength and the 24h flexural strength, with the most severe effect on the abrasion resistance.
3. Combining examples 1 and 5-7 with table 2, it can be seen that the cellulose composition is optimized for carboxymethyl cellulose and ethyl cellulose, and has a large beneficial effect on the abrasion resistance and water retention of the cement-based self-leveling mortar.
4. Combining example 1 and examples 8-10 with table 2, it can be seen that the replacement of the filler with a mortar filler and the replacement of the filler with fly ash or silica fume all have a certain adverse effect on the wear resistance, 24h compressive strength and 24h flexural strength of cement-based self-leveling mortars.
5. Combining example 1 and example 11 with table 2, it can be seen that replacing the aliphatic epoxy resin with a cycloaliphatic epoxy resin of the same mass has a major adverse effect on the wear resistance of the cement-based self-leveling mortar.
6. It can be seen by combining example 1 and comparative example 1 with table 2 that there is a large adverse effect on the abrasion resistance and 24h compressive strength of the cement-based self-leveling mortar when no desulfurized gypsum is contained in the raw materials.
7. It can be seen from the combination of example 1 and comparative example 2 and from table 2 that, when carboxymethyl cellulose and ethyl cellulose are not included in the raw materials, there is a large adverse effect on the abrasion resistance, 24h compressive strength and 24h flexural strength of the cement-based self-leveling mortar.
8. It can be seen by combining example 1 and comparative example 3 with table 2 that there is a large adverse effect on the wear resistance and 24h compressive strength of cement-based self-leveling mortars when no aliphatic epoxy resin is included in the raw materials.
9. It can be seen by combining example 1 and comparative example 4 with table 2 that there is a large adverse effect on the wear resistance and 24h compressive strength of cement-based self-leveling mortars when the raw materials do not contain soy flour.
10. When the bean flour and the aliphatic epoxy resin are not contained in the raw materials, the abrasion resistance, the 24h compressive strength and the 24h flexural strength of the cement-based self-leveling mortar are greatly influenced by combining the example 1 and the comparative example 5 and combining the table 2, which shows that the combination of the bean flour and the aliphatic epoxy resin can effectively improve the abrasion resistance of the cement-based self-leveling mortar and has favorable influence on the 24h compressive strength and the 24h flexural strength.
11. When the soybean flour, the aliphatic epoxy resin, the sulphoaluminate cement and the desulfurized gypsum are not contained in the raw materials, the abrasion resistance, the 24h compressive strength and the 24h rupture strength of the cement-based self-leveling mortar are greatly influenced, and the compounding of the soybean flour, the aliphatic epoxy resin, the sulphoaluminate cement and the desulfurized gypsum is proved to effectively improve the abrasion resistance of the cement-based self-leveling mortar and favorably influence the 24h compressive strength and the 24h rupture strength.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. The cement-based self-leveling mortar is characterized in that: the preparation raw materials comprise, by weight, 300 parts of 200-plus-one cement, 20-60 parts of gypsum, 50-100 parts of sulphoaluminate cement, 0.5-1.5 parts of cellulose, 0.8-2.0 parts of water reducing agent, 0.5-1.0 parts of defoaming agent, 0.2-0.5 part of coagulant, 0.5-1.2 parts of retarder, 600 parts of graded sand, 180 parts of 130-plus-one filler, 30-50 parts of epoxy resin and 20-50 parts of bean flour.
2. The cement-based self-leveling mortar according to claim 1, wherein: the epoxy resin is aliphatic epoxy resin.
3. The cement-based self-leveling mortar according to claim 1, wherein: the cellulose includes carboxymethyl cellulose and ethyl cellulose.
4. A cement-based self-leveling mortar according to claim 3, wherein: the weight ratio of the carboxymethyl cellulose to the ethyl cellulose is 8-12: 1.
5. The cement-based self-leveling mortar according to claim 1, wherein: the gypsum is desulfurized gypsum.
6. The cement-based self-leveling mortar according to claim 1, wherein: the filler comprises fly ash, silicon powder and talcum powder, and the weight ratio of the fly ash to the silicon powder to the talcum powder is as follows: 20-22: 10-12: 1 of fly ash, silicon powder and talcum powder.
7. The cement-based self-leveling mortar and the preparation process thereof according to claim 1, wherein the mortar comprises the following components: the cement is portland cement.
8. A cement-based self-leveling mortar, according to any one of claims 1 to 7, which is prepared by the following steps: the method comprises the following steps: the cement-based self-leveling mortar is prepared by uniformly mixing the silicate cement, the desulfurized gypsum, the sulphoaluminate cement, the cellulose, the water reducing agent, the defoaming agent, the coagulant, the slow release machine, the graded sand, the filler, the epoxy resin and the bean flour according to the formula ratio.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5229438A (en) * | 1989-12-01 | 1993-07-20 | Mitsui Petrochemical Industries, Ltd. | Two-component epoxy resin compositions |
| CN102173661A (en) * | 2010-12-22 | 2011-09-07 | 北京东方雨虹防水技术股份有限公司 | Self-leveling polymer cement base repair mortar and preparation method thereof |
| CN108675739A (en) * | 2018-05-03 | 2018-10-19 | 贵州恒源科创新型材料研发有限公司 | A kind of special binding material of air-entrained concrete building block |
| CN111099871A (en) * | 2019-12-24 | 2020-05-05 | 同济大学 | Gypsum-based self-leveling material and application method thereof in artware |
| CN112552000A (en) * | 2020-12-07 | 2021-03-26 | 绵竹市铸诚混凝土有限公司 | Surface wear-resistant hydrophobic enhanced self-leveling mortar and preparation method thereof |
-
2021
- 2021-06-17 CN CN202110674596.3A patent/CN113213861A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5229438A (en) * | 1989-12-01 | 1993-07-20 | Mitsui Petrochemical Industries, Ltd. | Two-component epoxy resin compositions |
| CN102173661A (en) * | 2010-12-22 | 2011-09-07 | 北京东方雨虹防水技术股份有限公司 | Self-leveling polymer cement base repair mortar and preparation method thereof |
| CN108675739A (en) * | 2018-05-03 | 2018-10-19 | 贵州恒源科创新型材料研发有限公司 | A kind of special binding material of air-entrained concrete building block |
| CN111099871A (en) * | 2019-12-24 | 2020-05-05 | 同济大学 | Gypsum-based self-leveling material and application method thereof in artware |
| CN112552000A (en) * | 2020-12-07 | 2021-03-26 | 绵竹市铸诚混凝土有限公司 | Surface wear-resistant hydrophobic enhanced self-leveling mortar and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 关海宁: "《龙江地产农产品加工技术》", 31 January 2013, 黑龙江大学出版社 * |
| 汪在芹: "《水库大坝化学灌浆研究与实践》", 31 October 2018, 长江出版社 * |
| 黄士元: "《混凝土科学》", 30 September 1986, 中国建筑工业出版社 * |
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