CN112441798A - Quick-drying cement-based lightweight base leveling material and preparation method thereof - Google Patents
Quick-drying cement-based lightweight base leveling material and preparation method thereof Download PDFInfo
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- CN112441798A CN112441798A CN201910805941.5A CN201910805941A CN112441798A CN 112441798 A CN112441798 A CN 112441798A CN 201910805941 A CN201910805941 A CN 201910805941A CN 112441798 A CN112441798 A CN 112441798A
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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
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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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
- 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
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- Chemical Kinetics & Catalysis (AREA)
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The quick-drying cement-based lightweight base leveling material is a dry powder material, wherein the powder material comprises the following components in parts by weight: the concrete comprises cement, sand, an inert filler, a light filler and a chemical additive, wherein the light filler is regenerated polyphenyl particles; the chemical admixture is retarder and quick hardening agent. The quick-drying cement-based lightweight base leveling material has the characteristics of light weight, quick drying and the like, has the characteristics of good quality stability, good matching property with coating, good physical property and good construction hand feeling, and is convenient to use. The invention also relates to a preparation method of the quick-drying cement-based lightweight base leveling material.
Description
Technical Field
The invention relates to a cement-based base leveling material, in particular to a quick-drying cement-based light base leveling material and a preparation method thereof.
Background
The existing traditional leveling materials comprise cement-based leveling materials and gypsum-based materials, the traditional leveling materials taking gypsum as a main body have the defects of poor water resistance, high water absorption, unstable raw materials, yellowing of coatings and the like, and the leveling materials taking cement-based as a main body have the defects of high density, labor-consuming construction, slow drying and long construction period. At present, a frame structure is taken as a main part of a building, the demand of non-bearing and low-density light wall body leveling materials is increased day by day, the requirements on the quality stability, short construction period and good matching property with coating of the wall body leveling materials are increasingly remarkable, and the quick-drying cement-based light base layer with the advantages of two types of traditional leveling materials can well meet the demands.
However, in the current market of leveling materials, a leveling product for a cement-based base layer which is light in weight, quick to dry and short in construction period is still blank, and aiming at the problem, a quick-drying leveling product for a cement-based light base layer is urgently needed in the field.
Disclosure of Invention
The invention aims to overcome the problems and provides a quick-drying cement-based lightweight base leveling material and a preparation method thereof. By doping a quick hardening agent, renewable polyphenyl granules and a retarder, the renewable polyphenyl granules are mainly used as a heat insulation material, when the lightweight filler is used as a lightweight filler, when the lightweight filler is constructed to be thicker (3-5mm), the lightweight filler can be quickly hardened, the setting time is shortened, certain early strength is provided, the water content is quickly reduced and quickly dried, after construction, the water content is quickly reduced, and the foaming probability of the putty during later construction can be effectively reduced; meanwhile, the construction interval time is shortened; overcomes the defects that the traditional cement-based leveling material can not be quickly dried and has larger volume weight.
The quick-drying cement-based lightweight base leveling material has the characteristics of light weight, quick drying and the like, has the characteristics of good quality stability, good matching property with coating, good physical property and good construction hand feeling, and is convenient to use.
In order to solve the problems, the invention is realized by the following technical scheme:
the quick-drying cement-based lightweight base leveling material is a dry powder material, is added with water and stirred, and is adjusted to a proper consistency for use, wherein the powder material comprises the following components: cement, sand, inert filler, light filler and chemical admixture.
The quick-drying cement-based lightweight base leveling material comprises the following powder components in percentage by weight:
the sum of all the components is 100 percent;
the light filler is regenerated polyphenyl particles;
the chemical admixture is retarder and quick hardening agent.
According to the powder component ratio, the quick-drying cement-based lightweight base leveling material can be obtained by a general leveling material preparation method, but the effect can be more obvious by using the preparation process provided by the invention.
The quick-drying cement-based lightweight base leveling material disclosed by the invention is further optimized as follows:
wherein the powder comprises the following components in percentage by weight:
the sum of all components is 100%.
The quick-drying cement-based lightweight base leveling material disclosed by the invention is further optimized as follows:
the weight ratio of the cement to the quick hardening agent to the retarder to the renewable polyphenyl particles is as follows: 1 (0.28-0.31) and (0.0025-0.003): (0.03-0.04).
The cement comprises general portland cement and high aluminate cement, and the proportion of the general portland cement is as follows: high aluminate cement 1: (0.3 ~ 0.45), the rapid hardening agent has high hydration activity, cement hydration is accelerated, good rapid hardening effect is had, the polyphenyl granule that can regenerate is spherical, specific surface area is big, cement is very good to its parcel nature, the polyphenyl granule that can regenerate can carry the same kind electric charge after the friction, under the effect of electrostatic repulsion, form good dispersion to cement, the water cement ratio can (add the water yield) reduce, cement hydration is accelerated simultaneously, in addition, because light, not so closely knit, also have certain help to moisture migration to the air, make the product have the effect of fast drying when reaching the rapid hardening.
The quick-drying cement-based lightweight base leveling material disclosed by the invention is further optimized as follows:
the cement is the combination of general cement and special cement;
the general cement is one or a combination of more of portland cement, ordinary portland cement, slag portland cement, pozzolanic portland cement, fly ash portland cement and composite portland cement;
the special cement is one or a combination of more of sulphoaluminate cement, high aluminate cement and white portland cement.
The quick-drying cement-based lightweight base leveling material disclosed by the invention is further optimized as follows:
the sand is one or the combination of quartz sand and silica sand.
The sand is preferably one or a combination of 40-200 meshes of quartz sand and silica sand, and more preferably 40-70 meshes, 70-150 meshes of quartz sand and silica sand or a combination of the two.
The quick-drying cement-based lightweight base leveling material disclosed by the invention is further optimized as follows:
the inert filler is one or a combination of more of calcium carbonate, quartz powder and talcum powder.
The inert filler is preferably 150-500 meshes, and more preferably one or a combination of more of calcium carbonate, quartz powder and talcum powder with 200-325 meshes.
The quick-drying cement-based lightweight base leveling material disclosed by the invention is further optimized as follows:
the light filler is one or a combination of a plurality of light, environment-friendly and economic regenerated polyphenyl granules, primary polyphenyl granules, perlite and vitrified micro bubbles.
The quick-drying cement-based lightweight base leveling material disclosed by the invention is further optimized as follows:
the chemical admixture is one or a combination of more of redispersible latex powder, cellulose ether, a retarder, a quick-hardening agent and wood fiber.
The quick-drying cement-based lightweight base leveling material disclosed by the invention is further optimized as follows:
the redispersible latex powder is one or a combination of more of vinyl acetate-ethylene copolymer rubber powder, ethylene-chloroethylene-vinyl laurate terpolymer rubber powder and vinyl acetate-ethylene-higher fatty acid vinyl ester terpolymer rubber powder;
the cellulose ether is hydroxypropyl methyl cellulose ether;
the retarder is tartaric acid;
the rapid hardening agent is a substance containing amorphous calcium aluminate.
The invention also relates to a preparation method of the quick-drying cement-based lightweight base leveling material, which comprises the following steps:
adding cement, light filler and chemical admixture into a stirrer according to the proportion of powder components, stirring, premixing for 10min, adding sand and inert filler, stirring for 20min, and fully and uniformly mixing the raw materials to obtain the quick-drying cement-based light base leveling material.
The quick-drying cement-based lightweight base leveling material has the characteristics of small bulk density, light weight and quick drying, and solves the problems of large density, large volume weight, slow drying and long construction period of the traditional cement-based leveling material. Meanwhile, the cement-based leveling material has the characteristics of small stacking density, light weight, high quality stability, good water resistance and good matching property with coating, and solves the problems of poor water resistance, poor quality stability and poor matching property with coating of the traditional gypsum-based leveling material.
The quick-drying cement-based lightweight base leveling material disclosed by the invention combines the advantages of the traditional cement-based and gypsum-based leveling materials, and improves the respective disadvantages of the cement-based and gypsum-based leveling materials; the quick-drying cement-based lightweight base leveling material can be applied to leveling the inner walls of various buildings, and is particularly suitable for construction sites with high requirements on water resistance and bearing of wall surfaces and wall surfaces needing to be renovated in old houses which need to be built quickly.
The quick-drying cement-based lightweight base leveling material is used for construction at normal temperature, is convenient to operate and has good construction performance; after construction, the putty has strong adhesion with a base layer, good water resistance, quick-drying effect while being quickly hardened, low probability of foaming of the subsequent putty, good matching property with the paint and good leveling effect.
It is to be understood that within the scope of the present invention, the above-described features of the present invention and those specifically described below (e.g., in the examples) may be combined with each other to form new or preferred embodiments. Each feature disclosed in this specification may be replaced by an alternative feature serving the same, equivalent, or similar purpose. Thus, unless expressly stated otherwise, the features disclosed are merely generic examples of equivalent or similar features. Not to be reiterated herein, but to the extent of space.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, any methods and materials similar or equivalent to those described herein can be used in the methods of the present invention. The preferred embodiments and materials described herein are intended to be exemplary only.
Drawings
FIG. 1 is a graph showing the correlation between the present invention and "paint compatibility measurement".
Description of the figure numbers:
1-sample test piece 2-base material fiber plate 3-water surface 4-standard sand 5-water tank bottom
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. The simple improvement of the preparation method of the invention on the premise of the conception of the invention belongs to the protection scope of the invention. The experimental procedures, in which the specification of the present invention and the following examples do not specify specific conditions, are generally carried out under conventional conditions or conditions recommended by the manufacturer. Unless otherwise indicated, percentages and parts are percentages and parts by weight.
Example 1
A preparation method of a quick-drying cement-based lightweight base leveling material comprises the following steps:
adding cement, light filler and chemical admixture into a stirrer according to the proportion of powder components, stirring, premixing for 10min, adding sand and inert filler, stirring for 20min, and fully and uniformly mixing the raw materials to obtain the quick-drying cement-based light base leveling material.
Wherein the weight percentage of the powder components is shown in the table 1:
TABLE 1 composition in weight percent of the powder constituents (%)
The light filler is regenerated polyphenyl particles;
the chemical admixture is retarder and quick hardening agent.
The weight ratio of the cement to the quick hardening agent to the retarder to the renewable polyphenyl particles is as follows: 1 (0.28-0.31) and (0.0025-0.003): (0.03-0.04).
The cement comprises general portland cement and high aluminate cement, and the proportion of the general portland cement is as follows: high aluminate cement 1: (0.3 ~ 0.45), the rapid hardening agent has high hydration activity, cement hydration is accelerated, good rapid hardening effect is had, the polyphenyl granule that can regenerate is spherical, specific surface area is big, cement is very good to its parcel nature, the polyphenyl granule that can regenerate can carry the same kind electric charge after the friction, under the effect of electrostatic repulsion, form good dispersion to cement, the water cement ratio can (add the water yield) reduce, cement hydration is accelerated simultaneously, in addition, because light, not so closely knit, also have certain help to moisture migration to the air, make the product have the effect of fast drying when reaching the rapid hardening.
The cement is the combination of general cement and special cement;
wherein the general cement is one or a combination of more of portland cement, ordinary portland cement, slag portland cement, pozzolanic portland cement, fly ash portland cement and composite portland cement;
wherein the special cement is one or a combination of more of sulphoaluminate cement, high aluminate cement and white portland cement.
The sand is one or the combination of quartz sand and silica sand.
The sand is preferably one or a combination of 40-200 meshes of quartz sand and silica sand, and more preferably 40-70 meshes, 70-150 meshes of quartz sand and silica sand or a combination of the two.
Wherein the inert filler is one or a combination of more of calcium carbonate, quartz powder and talcum powder.
The inert filler is preferably 150-500 meshes, and more preferably one or a combination of more of calcium carbonate, quartz powder and talcum powder with 200-325 meshes.
The light filler is one or a combination of a plurality of light, environment-friendly and economic regenerated polyphenyl granules, primary polyphenyl granules, perlite and vitrified micro bubbles.
Wherein the chemical admixture is one or a combination of more of redispersible latex powder, cellulose ether, a retarder, a quick-hardening agent and wood fiber.
Wherein the redispersible latex powder is one or a combination of more of vinyl acetate-ethylene copolymer rubber powder, ethylene-chloroethylene-vinyl laurate ternary copolymer rubber powder and vinyl acetate-ethylene-higher fatty acid vinyl ester ternary copolymer rubber powder;
the cellulose ether is hydroxypropyl methyl cellulose ether;
the retarder is tartaric acid;
the rapid hardening agent is a substance containing amorphous calcium aluminate;
example 2
This embodiment is a more specific and optimized embodiment.
In the embodiment, the powder components comprise, by weight:
the formula IS tested and evaluated according to national standard < < GB/T20473-.
Example 3
This embodiment is a more specific and optimized embodiment.
In the embodiment, the powder components comprise, by weight:
the formula IS tested and evaluated according to national standard < < GB/T20473-.
The general method for measuring the performance of the quick-drying cement-based lightweight base course leveling material comprises the following steps:
(1) bulk Density determination
The bulk density of the formula is measured according to 6.2 in the national standard < < GB/T20473-.
(2) Recoating time determination
Description of recoating time: the time interval from the beginning of construction to the water content of less than or equal to 20 percent. The repainting time of the formula is measured according to the requirements of an enterprise internal test method TU-NPZ-S7.3-WI-006 Nippon interior wall putty applicability detection evaluation. The test method comprises the following steps: timing from the beginning of construction, after drying for a period of time, randomly taking 3 points on a construction area, measuring the water content of the points by using a water content meter, and if the average value of the water content of the three points is less than or equal to 20 percent, the time interval is recoating time; if the water content is more than 20 percent, continuing to dry for a proper time, and testing according to the method until the water content is less than or equal to 20 percent.
(3) Determination of compatibility with coating
The compatibility of the formula and the coating IS determined according to the requirement of an enterprise internal test method NP-S7-IS-122 gypsum mortar yellowing test, and the method comprises the following steps:
placing a rigid polyvinyl chloride or metal frame with the size of 190mm multiplied by 280mm multiplied by 5mm on an A4 cement fiberboard, filling the stirred sample into the frame, leveling the surface by a scraper, removing the frame after 5min to obtain a test piece, maintaining for 1d in a standard test environment, brushing a primer (an inner wall covering type primer), and maintaining for 1d in the standard test environment.
Horizontally placing the test piece on standard sand meeting GB/T17671 at the bottom of a water tank, injecting water to a position with a distance of about 5mm from the surface of the test piece block on the water surface, standing as shown in figure 1, and respectively observing whether the surface of the primer changes color and yellows after 24 hours, 48 hours and 96 hours; if the color is changed and the color is yellow, the observation is not continued.
TABLE 2 paint compatibility requirements
| The condition of matching with the coating | Require that |
| Discoloration and yellowing of coating film | No discoloration and yellowing |
| Observation time (h) | ≤96 |
(4) Performance testing
And (3) carrying out performance test on the formula according to the requirements of JG/T298-2010 indoor putty for buildings.
The bulk density test results for examples of quick setting cement-based lightweight based screed materials of the present invention and conventional cement-based screed materials on the market are shown in table 3.
TABLE 3 bulk Density test results
| Item | Example 1 | Example 2 | Example 3 | Tradition ofCement-based leveling material |
| Bulk Density (kg/m)3) | 700～1000 | 781 | 914 | 1490～1500 |
The odor test results show that: the bulk density of the odor of the leveling material prepared by the formula provided by the embodiment of the invention is obviously reduced compared with that of the traditional leveling material in the market, and the effect of light weight is achieved.
The results of the refinish time of examples of quick setting cement-based lightweight based screed materials of the present invention versus conventional cement-based screed materials on the market are shown in table 4.
TABLE 4 results of the recoating time measurements
The water content test results show that: the water content of the leveling materials prepared in the formulas of the embodiment 1 and the embodiment 2 can be obviously reduced, and the effect of quick drying is achieved. After drying for the same time, the chance of blistering of the post-batch putty is reduced. Compared with the traditional leveling materials on the market, the recoating time is obviously shortened.
The results of the paint compatibility of examples of quick setting cement-based lightweight based screed materials of the present invention with conventional gypsum-based screeds on the market are shown in table 5.
TABLE 5 paint compatibility test results
The paint matching test result shows that: the leveling material prepared by the formula provided by the embodiment of the invention has good matching performance of the paint, and can effectively reduce the risks of discoloration and yellowing of the paint.
The results of the physical property tests of examples of the quick setting cement-based lightweight base screed according to the present invention versus conventional screed materials on the market are shown in table 6.
TABLE 6 physical Property results
The performance test results show that the physical properties of the embodiments of the quick-drying cement-based lightweight base leveling material are superior to those of the conventional cement-based leveling material products in the market.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; those skilled in the art should also realize that such equivalent variations, modifications, and alterations are possible in light of the above teachings without departing from the spirit and scope of the present invention; meanwhile, any equivalent changes, modifications and evolution made to the above embodiments according to the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The experimental method of the present invention, in which the specific conditions are not specified, is generally carried out under the conventional conditions or the conditions recommended by the manufacturers.
The various optimized technical schemes in the invention can be combined with each other unless otherwise stated.
Unless otherwise indicated, percentages and parts are percentages and parts by weight.
The experimental procedures described in the specification and examples, which do not specify specific conditions, are generally carried out under the conditions which are customary or recommended by the manufacturers.
The various starting materials, reagents, components used in the present invention are, unless otherwise indicated, the corresponding starting materials commonly used in the art.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, any methods and materials similar or equivalent to those described herein can be used in the methods of the present invention.
Claims (10)
1. The utility model provides a quick-drying type cement base light basic unit leveling material which characterized in that:
wherein the powder comprises the following components in percentage by weight:
the sum of all the components is 100 percent;
the light filler is regenerated polyphenyl particles;
the chemical admixture is retarder and quick hardening agent.
2. The quick setting cement-based lightweight base course leveling material of claim 1, wherein: wherein the powder comprises the following components in percentage by weight:
the sum of all components is 100%.
3. The quick setting cement-based lightweight base course leveling material of claim 1, wherein:
the weight ratio of the cement to the quick hardening agent to the retarder to the renewable polyphenyl particles is as follows: 1 (0.28-0.31) and (0.0025-0.003): (0.03-0.04).
4. The quick setting cement-based lightweight base course leveling material of claim 1, wherein:
the cement is the combination of general cement and special cement;
the general cement is one or a combination of more of portland cement, ordinary portland cement, slag portland cement, pozzolanic portland cement, fly ash portland cement and composite portland cement;
the special cement is one or a combination of more of sulphoaluminate cement, high aluminate cement and white portland cement.
5. The quick setting cement-based lightweight base course leveling material of claim 1, wherein:
the sand is one or the combination of quartz sand and silica sand.
6. The quick setting cement-based lightweight base course leveling material of claim 1, wherein:
the inert filler is one or a combination of more of calcium carbonate, quartz powder and talcum powder.
7. The quick setting cement-based lightweight base course leveling material of claim 1, wherein:
the light filler is one or a combination of more of regenerated polyphenyl particles, primary polyphenyl particles, perlite and vitrified micro bubbles.
8. The quick setting cement-based lightweight base course leveling material of claim 1, wherein:
the chemical admixture is one or a combination of more of redispersible latex powder, cellulose ether, a retarder, a quick-hardening agent and wood fiber.
9. The quick setting cement-based lightweight based screed material according to claim 8, wherein:
the redispersible latex powder is one or a combination of more of vinyl acetate-ethylene copolymer rubber powder, ethylene-chloroethylene-vinyl laurate terpolymer rubber powder and vinyl acetate-ethylene-higher fatty acid vinyl ester terpolymer rubber powder;
the cellulose ether is hydroxypropyl methyl cellulose ether;
the retarder is tartaric acid;
the rapid hardening agent is a substance containing amorphous calcium aluminate.
10. A method for preparing the quick-drying cement-based lightweight base leveling material according to any one of claims 1 to 9, which is characterized in that:
it is prepared by the following steps:
adding cement, light filler and chemical admixture into a stirrer according to the proportion of powder components, stirring, premixing for 10min, adding sand and inert filler, stirring for 20min, and fully and uniformly mixing the raw materials to obtain the quick-drying cement-based light base leveling material.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755285A (en) * | 2014-01-23 | 2014-04-30 | 广东龙湖科技股份有限公司 | Color thermal insulation mortar with heat reflection function for exterior wall |
| CN105753419A (en) * | 2016-01-27 | 2016-07-13 | 佛山市佳密特防水材料有限公司 | Rapidly leveling type mortar for ground leveling |
| CN106336183A (en) * | 2016-08-19 | 2017-01-18 | 河南方建材有限公司 | Binary system quick-drying thick-layer cement self-leveling mortar |
| US20180162777A1 (en) * | 2016-12-12 | 2018-06-14 | United States Gypsum Company | Self-desiccating, dimensionally-stable hydraulic cement compositions with enhanced workability |
-
2019
- 2019-08-29 CN CN201910805941.5A patent/CN112441798B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755285A (en) * | 2014-01-23 | 2014-04-30 | 广东龙湖科技股份有限公司 | Color thermal insulation mortar with heat reflection function for exterior wall |
| CN105753419A (en) * | 2016-01-27 | 2016-07-13 | 佛山市佳密特防水材料有限公司 | Rapidly leveling type mortar for ground leveling |
| CN106336183A (en) * | 2016-08-19 | 2017-01-18 | 河南方建材有限公司 | Binary system quick-drying thick-layer cement self-leveling mortar |
| US20180162777A1 (en) * | 2016-12-12 | 2018-06-14 | United States Gypsum Company | Self-desiccating, dimensionally-stable hydraulic cement compositions with enhanced workability |
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