CN113956005A - Self-leveling mortar and preparation method thereof - Google Patents
Self-leveling mortar and preparation method thereof Download PDFInfo
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- CN113956005A CN113956005A CN202111488649.9A CN202111488649A CN113956005A CN 113956005 A CN113956005 A CN 113956005A CN 202111488649 A CN202111488649 A CN 202111488649A CN 113956005 A CN113956005 A CN 113956005A
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- self
- leveling mortar
- gypsum
- powder
- reducing agent
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 49
- 239000010440 gypsum Substances 0.000 claims abstract description 48
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 26
- 239000011575 calcium Substances 0.000 claims abstract description 26
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000853 adhesive Substances 0.000 claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 claims abstract description 19
- 239000004568 cement Substances 0.000 claims abstract description 19
- 239000011398 Portland cement Substances 0.000 claims abstract description 17
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002270 dispersing agent Substances 0.000 claims abstract description 15
- 239000006004 Quartz sand Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 20
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 18
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical group OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 3
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 3
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 3
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 3
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 3
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 3
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 3
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000011975 tartaric acid Substances 0.000 claims description 3
- 235000002906 tartaric acid Nutrition 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 238000005034 decoration Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 7
- 239000004964 aerogel Substances 0.000 description 6
- 239000006087 Silane Coupling Agent Substances 0.000 description 5
- 229910052681 coesite Inorganic materials 0.000 description 5
- 229910052906 cristobalite Inorganic materials 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- 229910052682 stishovite Inorganic materials 0.000 description 5
- 229910052905 tridymite Inorganic materials 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- 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 invention discloses self-leveling mortar which comprises the following materials in percentage by weight: 20-70% of high-strength gypsum powder, 0-30% of light calcium powder, 0-50% of heavy calcium powder, 0-40% of portland cement, 0-20% of high-alumina cement, 0-30% of quartz sand, 0.1-3% of cellulose ether, 0.1-3% of water reducing agent, 0.1-3% of dispersing agent, 0.1-10% of powdery adhesive and 1-5% of gypsum retarder, the invention improves the overall performance of the self-leveling mortar by the superposition of functions of the water reducing agent, the gypsum retarder, the dispersing agent, the powdery adhesive and the like, has the characteristics of water resistance, wear resistance and one-time construction thickness of 3-50mm, can be applied to various environments indoors and outdoors, obviously improves the decoration quality of buildings and saves a large amount of labor cost, and in addition, the preparation method of the self-leveling mortar is safe, environment-friendly, simple, convenient and rapid, and has low requirements on production equipment, is favorable for reducing the production cost of enterprises.
Description
Technical Field
The invention relates to the field of building materials, in particular to self-leveling mortar and a preparation method thereof.
Background
Recently, cement and gypsum materials are widely applied in building decoration processes, and hydration products of the cement and gypsum materials have high compressive strength and rupture strength and are good decoration and finishing materials. But the gypsum-based self-leveling mortar also has the defects of poor cement material cohesiveness, easy shrinkage, hollowing and cracking, low relative strength of gypsum materials, water intolerance, incapability of being used in a humid environment and the like, and is prepared from high-strength gypsum, cement, fine aggregate and various building chemical additives. The gypsum-based self-leveling has the advantages of high levelness and difficult hollowing and cracking. Most manufacturers adopt building gypsum for preparation, and ensure that the corresponding performance requirements are met by increasing the doping amount of a chemical additive, and the cost of the additive accounts for about two thirds of the production cost of the self-leveling gypsum, so that the application cost of the self-leveling gypsum is higher than that of cement mortar, the popularization and the application are hindered, and the development is slow.
The invention with the publication number of CN109694228B discloses gypsum-based self-leveling mortar and a preparation method thereof, wherein the gypsum-based self-leveling mortar comprises SiO2 aerogel, portland cement, desulfurized gypsum, a retarder, a water reducing agent, latex powder, a stabilizer and a filler, and the SiO2 aerogel is prepared by adopting the following method: preparing the silane coupling agent into a silane coupling agent solution by using water; adding the hydrophobic SiO2 aerogel into the silane coupling agent solution, and stirring until the hydrophobic SiO2 aerogel is completely dissolved in the silane coupling agent solution; the preparation method of the gypsum-based self-leveling mortar comprises the following steps: surface modifying hydrophobic SiO2 aerogel with silane coupling agent; mixing the modified SiO2 aerogel with portland cement, and performing ball milling; adding other components, and mixing. The present application also provides gypsum-based self-leveling slurries prepared using the above-described gypsum-based self-leveling mortars, which, however, are not water-resistant.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the self-leveling mortar which is waterproof and wear-resistant and can be applied to various indoor and outdoor environments.
The invention also aims to overcome the defects in the prior art and provide the preparation method of the self-leveling mortar with simple and reliable preparation process and convenient operation.
The purpose of the invention is realized by the following technical scheme:
the self-leveling mortar comprises the following materials in percentage by weight: 20-70% of high-strength gypsum powder, 0-30% of light calcium powder, 0-50% of heavy calcium powder, 0-40% of portland cement, 0-20% of high-alumina cement, 0-30% of quartz sand, 0.1-3% of cellulose ether, 0.1-3% of a water reducing agent, 0.1-3% of a dispersing agent, 0.1-10% of a powdery adhesive and 1-5% of a gypsum retarder.
Further, the cellulose ether is one or more of hydroxypropyl methyl cellulose ether, hydroxyethyl methyl cellulose ether and hydroxyethyl cellulose ether, and the viscosity of an aqueous solution of the hydroxyethyl methyl cellulose with a mass concentration of 2% at 25 ℃ is 6000mPa & s-22000mPa & s.
Further, the gypsum retarder is tartaric acid, citric acid or salts thereof.
Further, the powdery adhesive is polyvinyl alcohol.
Further, the water reducing agent is selected from one or more of an ether polycarboxylic acid water reducing agent and an ester polycarboxylic acid water reducing agent.
A preparation method of self-leveling mortar comprises the following steps:
step one, sequentially adding high-strength gypsum powder, light calcium powder, heavy calcium powder, portland cement, high-alumina cement and quartz sand into a gravity-free powder stirrer, and stirring for 10 minutes;
and step two, sequentially adding the cellulose ether, the water reducing agent, the dispersing agent, the powdery adhesive and the gypsum retarder, and continuously stirring for 30 minutes until the mixture is uniformly stirred.
Further, the rotation speed of the stirring is 200-300 r/min.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention reasonably utilizes the grading combination to improve the workability, mechanical property and durability of the self-leveling mortar; the powder material mainly improves the working performance, the later strength and the durability of the self-leveling mortar. The self-leveling mortar also comprises functional components, the overall performance of the self-leveling mortar is improved mainly by the superposition of functions of a water reducing agent, a gypsum retarder, a dispersing agent, a powdery adhesive and the like, and the self-leveling mortar has the characteristics of water resistance, wear resistance and one-time construction thickness of 3-50mm, can be applied to various indoor and outdoor environments, remarkably improves the building decoration quality and saves a large amount of labor cost.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The self-leveling mortar comprises the following materials in percentage by weight: 20-70% of high-strength gypsum powder, 0-30% of light calcium powder, 0-50% of heavy calcium powder, 0-40% of portland cement, 0-20% of high-alumina cement, 0-30% of quartz sand, 0.1-3% of cellulose ether, 0.1-3% of a water reducing agent, 0.1-3% of a dispersing agent, 0.1-10% of a powdery adhesive and 1-5% of a gypsum retarder.
The cellulose ether is one or a mixture of more of hydroxypropyl methyl cellulose ether, hydroxyethyl methyl cellulose ether and hydroxyethyl cellulose ether, the viscosity of an aqueous solution of the hydroxyethyl methyl cellulose with the mass concentration of 2% is 6000mPa & s-22000mPa & s at 25 ℃, and the self-leveling mortar has good construction performance by utilizing the water retention, thickening and air entraining functions of the cellulose ether in the self-leveling mortar, and can reduce the phenomena of chalking and cracking of the self-leveling mortar after the self-leveling mortar is applied to a wall.
The gypsum retarder is tartaric acid, citric acid or salts thereof, and the retarder is used for prolonging the hydration hardening time of the self-leveling mortar, so that the freshly mixed self-leveling mortar can keep plasticity for a long time, and the setting time of the freshly mixed self-leveling mortar is adjusted.
The powdery adhesive is polyvinyl alcohol, and the powdery adhesive is moved to an interface or a surface of self-leveling mortar along with water by utilizing the water solubility of the polyvinyl alcohol, is gathered and formed into a film at the interface, and is used for connecting and filling gaps and pores in an interface transition area so as to greatly improve the bonding strength.
The water reducing agent is selected from one or more of an ether polycarboxylic acid water reducing agent and an ester polycarboxylic acid water reducing agent.
A preparation method of self-leveling mortar comprises the following steps:
step one, sequentially adding high-strength gypsum powder, light calcium powder, heavy calcium powder, portland cement, high-alumina cement and quartz sand into a gravity-free powder stirrer, and stirring for 10 minutes;
and step two, sequentially adding the cellulose ether, the water reducing agent, the dispersing agent, the powdery adhesive and the gypsum retarder, and continuously stirring for 30 minutes until the mixture is uniformly stirred.
The rotating speed of the stirring is 200-300 r/min.
Example one
A self-leveling mortar is prepared from 450kg of high-strength gypsum powder, 100kg of light calcium powder, 50kg of heavy calcium powder, 100kg of portland cement, 50kg of high-alumina cement, 233kg of quartz sand, 1kg of cellulose ether, 3kg of a water reducing agent, 2kg of a dispersing agent, 10kg of a powdery adhesive and 1kg of a gypsum retarder.
A preparation method of self-leveling mortar comprises the following steps:
step one, sequentially adding high-strength gypsum powder, light calcium powder, heavy calcium powder, portland cement, high-alumina cement and quartz sand into a gravity-free powder stirrer, and stirring for 10 minutes;
and step two, sequentially adding the cellulose ether, the water reducing agent, the dispersing agent, the powdery adhesive and the gypsum retarder, and continuously stirring for 30 minutes until the mixture is uniformly stirred.
The rotating speed of the stirring is 250 r/min.
Example two
A self-leveling mortar is prepared from 420kg of high-strength gypsum powder, 120kg of light calcium powder, 60kg of heavy calcium powder, 100kg of portland cement, 60kg of high-alumina cement, 223kg of quartz sand, 1kg of cellulose ether, 2.5kg of a water reducing agent, 2.5kg of a dispersing agent, 10kg of a powdery adhesive and 1kg of a gypsum retarder.
A preparation method of self-leveling mortar comprises the following steps:
step one, sequentially adding high-strength gypsum powder, light calcium powder, heavy calcium powder, portland cement, high-alumina cement and quartz sand into a gravity-free powder stirrer, and stirring for 15 minutes;
and step two, sequentially adding cellulose ether, a water reducing agent, a dispersing agent, a powdery adhesive and a gypsum retarder, and continuously stirring for 35 minutes until the mixture is uniformly stirred.
The rotating speed of the stirring is 260 r/min.
EXAMPLE III
A self-leveling mortar is prepared from 430kg of high-strength gypsum powder, 120kg of light calcium powder, 55kg of heavy calcium powder, 95kg of Portland cement, 70kg of high-alumina cement, 213kg of quartz sand, 1kg of cellulose ether, 3kg of a water reducing agent, 2.5kg of a dispersing agent, 9kg of a powdery adhesive and 1.5kg of a gypsum retarder.
A preparation method of self-leveling mortar comprises the following steps:
step one, sequentially adding high-strength gypsum powder, light calcium powder, heavy calcium powder, portland cement, high-alumina cement and quartz sand into a gravity-free powder stirrer, and stirring for 20 minutes;
and step two, sequentially adding the cellulose ether, the water reducing agent, the dispersing agent, the powdery adhesive and the gypsum retarder, and continuously stirring for 30 minutes until the mixture is uniformly stirred.
The rotating speed of the stirring is 270 r/min.
The self-leveling mortar obtained by screening and combining is further reduced in cost on the basis of contribution to stability through synergistic interaction among the components, so that the self-leveling mortar is green and environment-friendly.
TABLE 1 self-leveling mortar Properties
TABLE 1
Comparative examples 1 to 3
Comparative examples 1 to 3 provide a self-leveling mortar, which is different from the first to third examples in that: the high-strength gypsum powder, the portland cement and the high-alumina cement are different in mass ratio, and the raw materials of the high-strength gypsum powder, the portland cement and the high-alumina cement are shown in a table 2:
table 2 raw material composition of the self-leveling mortar of comparative examples 1 to 3:
the stirring rotation speeds of comparative examples 1 to 3 were all set to 250 r/min.
TABLE 3 Properties of self-leveling mortars of comparative examples 1 to 3
By combining the tables 1 and 3, it can be seen that the performances of the comparative examples 1 to 3 are all inferior to those of the examples one to three, the flowability in half an hour is not changed greatly, the breaking strength and the compressive strength are low, the tensile bonding strength is not high, even the comparative examples 1 and 2 can crack, and compared with the tensile bonding strength, the compressive strength and the breaking resistance of the examples one to three are better, and the waterproof and wear-resistant composite material has the characteristics of water resistance, wear resistance and one-time construction thickness of 3-50mm, and can be applied to various environments indoors and outdoors.
It should be understood that the above-described embodiments are merely preferred embodiments of the present invention and the technical principles applied thereto, and that any changes, modifications, substitutions, combinations and simplifications made by those skilled in the art without departing from the spirit and principle of the present invention shall be regarded as equivalent substitutions and shall be covered by the protection scope of the present invention.
Claims (7)
1. The self-leveling mortar is characterized by comprising the following materials in percentage by weight: 20-70% of high-strength gypsum powder, 0-30% of light calcium powder, 0-50% of heavy calcium powder, 0-40% of portland cement, 0-20% of high-alumina cement, 0-30% of quartz sand, 0.1-3% of cellulose ether, 0.1-3% of a water reducing agent, 0.1-3% of a dispersing agent, 0.1-10% of a powdery adhesive and 1-5% of a gypsum retarder.
2. The self-leveling mortar of claim 1, wherein: the cellulose ether is one or more of hydroxypropyl methyl cellulose ether, hydroxyethyl methyl cellulose ether and hydroxyethyl cellulose ether, and the viscosity of an aqueous solution of hydroxyethyl methyl cellulose with the mass concentration of 2% at 25 ℃ is 6000 mPa-s-22000 mPa-s.
3. The self-leveling mortar of claim 2, wherein: the gypsum retarder is tartaric acid, citric acid or its salts.
4. The self-leveling mortar of claim 3, wherein: the powdery adhesive is polyvinyl alcohol.
5. The self-leveling mortar of claim 4, wherein: the water reducing agent is selected from one or more of an ether polycarboxylic acid water reducing agent and an ester polycarboxylic acid water reducing agent.
6. A method of preparing a self-levelling mortar according to any one of claims 1 to 5, comprising:
step one, sequentially adding high-strength gypsum powder, light calcium powder, heavy calcium powder, portland cement, high-alumina cement and quartz sand into a gravity-free powder stirrer, and stirring for 10 minutes;
and step two, sequentially adding the cellulose ether, the water reducing agent, the dispersing agent, the powdery adhesive and the gypsum retarder, and continuously stirring for 30 minutes until the mixture is uniformly stirred.
7. The method for preparing a self-leveling mortar according to claim 6, characterized in that: the rotating speed of the stirring is 200-300 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111488649.9A CN113956005A (en) | 2021-12-08 | 2021-12-08 | Self-leveling mortar and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111488649.9A CN113956005A (en) | 2021-12-08 | 2021-12-08 | Self-leveling mortar and preparation method thereof |
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| CN113956005A true CN113956005A (en) | 2022-01-21 |
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| CN202111488649.9A Pending CN113956005A (en) | 2021-12-08 | 2021-12-08 | Self-leveling mortar and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115677307A (en) * | 2022-10-31 | 2023-02-03 | 江苏兆佳建材科技有限公司 | Gypsum-based self-leveling mortar and preparation method thereof |
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| WO2013040788A1 (en) * | 2011-09-23 | 2013-03-28 | Rohm And Haas Company | Low temperature mortar for exterior insulation finish system |
| CN105645898A (en) * | 2015-12-30 | 2016-06-08 | 上海每天节能环保科技股份有限公司 | Modified gypsum-based self-leveling mortar and preparation and application thereof |
| CN106431146A (en) * | 2016-10-09 | 2017-02-22 | 南京工业大学 | Composite gypsum-based self-leveling mortar and preparation method |
| CN111393125A (en) * | 2020-03-25 | 2020-07-10 | 河南强耐新材股份有限公司 | Gypsum-based self-leveling repair mortar and preparation method thereof |
| CN113387662A (en) * | 2021-05-24 | 2021-09-14 | 苏州金世晟建筑装饰工程有限公司 | Novel gypsum surface layer self-leveling material |
-
2021
- 2021-12-08 CN CN202111488649.9A patent/CN113956005A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013040788A1 (en) * | 2011-09-23 | 2013-03-28 | Rohm And Haas Company | Low temperature mortar for exterior insulation finish system |
| CN105645898A (en) * | 2015-12-30 | 2016-06-08 | 上海每天节能环保科技股份有限公司 | Modified gypsum-based self-leveling mortar and preparation and application thereof |
| CN106431146A (en) * | 2016-10-09 | 2017-02-22 | 南京工业大学 | Composite gypsum-based self-leveling mortar and preparation method |
| CN111393125A (en) * | 2020-03-25 | 2020-07-10 | 河南强耐新材股份有限公司 | Gypsum-based self-leveling repair mortar and preparation method thereof |
| CN113387662A (en) * | 2021-05-24 | 2021-09-14 | 苏州金世晟建筑装饰工程有限公司 | Novel gypsum surface layer self-leveling material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115677307A (en) * | 2022-10-31 | 2023-02-03 | 江苏兆佳建材科技有限公司 | Gypsum-based self-leveling mortar and preparation method thereof |
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Application publication date: 20220121 |