CN109180133B - Polymer anti-crack dry powder plastering mortar and polymer anti-crack plastering mortar - Google Patents
Polymer anti-crack dry powder plastering mortar and polymer anti-crack plastering mortar Download PDFInfo
- Publication number
- CN109180133B CN109180133B CN201811336488.XA CN201811336488A CN109180133B CN 109180133 B CN109180133 B CN 109180133B CN 201811336488 A CN201811336488 A CN 201811336488A CN 109180133 B CN109180133 B CN 109180133B
- Authority
- CN
- China
- Prior art keywords
- parts
- monomer
- plastering mortar
- dry powder
- polymer
- 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
- C04B28/14—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 calcium sulfate cements
- C04B28/16—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 calcium sulfate cements containing anhydrite, e.g. Keene's cement
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to polymer anti-cracking dry powder plastering mortar, which comprises the following raw materials, by mass, 55-65 parts of portland cement, 25-35 parts of high-alumina cement, 13-17 parts of gypsum, 120 parts of fly ash, 750 parts of sand 720, 0.1-0.15 part of a thickening agent, 0.7-1.3 parts of fibers, 23-27 parts of polymer latex powder, 0.1-0.2 part of a thixotropic agent, 23-27 parts of a thixotropic lubricant and 0.7-1.3 parts of a water reducing agent. The invention also relates to polymer anti-crack plastering mortar, which comprises 100 parts of polymer anti-crack dry powder plastering mortar and 18-22 parts of water by weight. Has excellent cracking resistance, excellent adhesion and good weather resistance.
Description
Technical Field
The invention relates to the field of building materials, in particular to polymer anti-crack dry powder plastering mortar and polymer anti-crack plastering mortar.
Background
Wall repairing projects, particularly ancient building walls, are mostly long and have large areas, and the walls have no shrinkage joints. Under the condition of ancient method new making, the whole repairing system comprises interface mortar, repair mortar, plastering and leveling mortar and anti-cracking mortar, and particularly the plastering and leveling mortar has excellent cracking resistance, excellent adhesion and good weather resistance.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the polymer anti-cracking dry powder plastering mortar which has excellent anti-cracking property, excellent bonding property and good weather resistance.
The technical purpose of the invention is realized by the following technical scheme:
the polymer anti-cracking dry powder plastering mortar comprises, by mass, 55-65 parts of portland cement, 25-35 parts of high-alumina cement, 13-17 parts of gypsum, 120 parts of fly ash, 750 parts of sand 720, 0.1-0.15 part of a thickening agent, 0.7-1.3 parts of fiber, 23-27 parts of polymer latex powder, 0.1-0.2 part of a thixotropic agent, 23-27 parts of a thixotropic lubricant and 0.7-1.3 parts of a water reducing agent.
Further, the polymer latex powder is prepared by adopting the following method:
(1) preparation of polymer emulsion: adding a nuclear layer mixed monomer containing a triethylene glycol dimethacrylate monomer, a 2,2, 4-trimethylhexamethylene bis (2-carbamoyloxyethyl) dimethacrylate monomer and a 2-hydroxyethyl acrylate monomer into a mixed solution containing an acidic buffering agent, an initiator, an emulsifier and deionized water for pre-emulsification, heating to 80-90 ℃, reacting for 3-5 hours, adding a diacetone acrylamide monomer for uniform mixing, dropwise adding a shell layer mixed monomer containing a 2-hydroxyethyl acrylate monomer, a 2-acrylamide-2-methylpropanesulfonic acid monomer and a vinyl acetate monomer, and continuously reacting for 3-5 hours after dropwise adding is finished to obtain a polymer emulsion; wherein, calculated by weight portion, the composition comprises 20-30 portions of triethylene glycol dimethacrylate monomer, 10-15 portions of 2,2, 4-trimethylhexamethylene-bis (2-carbamoyloxyethyl) dimethacrylate monomer, 8-10 portions of acrylic acid-2-hydroxyethyl ester monomer, 0.3-0.5 portion of acid buffer, 0.5-0.7 portion of initiator, 1-1.4 portions of emulsifier, 90-110 portions of deionized water, 10-15 portions of diacetone acrylamide monomer, 10-15 portions of acrylic acid-2-hydroxyethyl ester monomer, 10-15 portions of 2-acrylamide-2-methylpropanesulfonic acid monomer and 20-30 portions of vinyl acetate monomer;
(2) preparation of polymer latex powder: adopting sodium hydroxide aqueous solution with the weight percentage concentration of 4-6% to adjust the pH value of the polymer emulsion to 7.9-8.1, adding polyvinyl alcohol aqueous solution with the weight percentage concentration of 4-6% to stir evenly, and then carrying out spray drying treatment to obtain polymer latex powder; wherein, the dosage of the polyvinyl alcohol aqueous solution with the weight percentage concentration of 4-6 percent is 5-10 percent of the weight of the polymer emulsion.
Still further, the acidic buffer is sodium bicarbonate.
Further, the initiator is selected from one or more of potassium persulfate, sodium persulfate and ammonium persulfate.
Further, the emulsifier is disodium alkyl diphenyl oxide disulfonate.
Further, the portland cement is selected from p.o42.5 portland cement; the high alumina cement is selected from CA-50 high alumina cement.
Further, the gypsum is selected from anhydrite.
Further, the fly ash is selected from class II fly ash.
Further, the sand is prepared from (25-27) by weight: (23-25): (11-13): (10-12) continuous graded sand with the grain size of 3.35-2.36mm, continuous graded sand with the grain size of 2.36-1.18mm, continuous graded sand with the grain size of 1.18-0.6mm and continuous graded sand with the grain size of 0.6-0.075 mm.
The invention aims to provide a polymer anti-cracking plastering mortar which has excellent cracking resistance, excellent adhesion and good weather resistance.
The technical purpose of the invention is realized by the following technical scheme:
the polymer anti-crack plastering mortar comprises 100 parts by weight of the polymer anti-crack dry powder plastering mortar and 18-22 parts by weight of water.
In conclusion, the invention has the following beneficial effects:
firstly, after pumping through a pipe with the length of 100 meters and the inner diameter of 6 centimeters, the mortar does not bleed and is not isolated; then, vertically spraying the mortar on the wall body by a spraying machine, wherein the spraying thickness is 8 cm, and the coating has no sagging phenomenon, which shows that the polymer anti-cracking dry powder plastering mortar and the polymer anti-cracking plastering mortar provided by the invention have excellent wet bonding strength; the results of the tensile bond strength (untreated 14d) measurements show that the polymer anti-crack dry powder plastering mortar and the polymer anti-crack plastering mortar provided by the invention have excellent dry bond strength. Therefore, the polymer anti-cracking dry powder plastering mortar provided by the invention has excellent binding power
Secondly, the polymer anti-crack dry powder plastering mortar and the polymer anti-crack plastering mortar provided by the invention have excellent flexibility and adhesive force and extremely low shrinkage rate. Therefore, the polymer anti-cracking dry powder plastering mortar and the polymer anti-cracking plastering mortar have no cracking, no expansion joint and no bulge.
Thirdly, after limit treatment, the polymer anti-crack dry powder plastering mortar and the polymer anti-crack plastering mortar still have good tensile bonding strength, and the tensile bonding strength exceeds 0.5 MPa and is far greater than the safety requirement of the bonding force of 0.3MPa of the base layer required by plastering construction. Therefore, the durability of the polymer anti-cracking dry powder plastering mortar provided by the invention is good.
Detailed Description
The present invention will be described in further detail with reference to examples.
Example 1
Preparation of polymer emulsion: adding a nuclear layer mixed monomer containing 20Kg of triethylene glycol dimethacrylate monomer, 15Kg of 2,2, 4-trimethylhexamethylene bis (2-carbamoyloxyethyl) dimethacrylate monomer and 10Kg of acrylic acid-2-hydroxyethyl ester monomer into a mixed solution containing 0.5Kg of sodium bicarbonate acid buffer, 0.5Kg of potassium sulfate initiator, 1.4Kg of alkyl diphenyl ether disulfonate disodium emulsifier and 100Kg of deionized water for pre-emulsification, heating to 85 ℃, reacting for 4 hours, adding 15Kg of diacetone acrylamide monomer, uniformly mixing, dropwise adding a shell layer mixed monomer containing 15Kg of acrylic acid-2-hydroxyethyl ester monomer, 10Kg of 2-acrylamide-2-methylpropanesulfonic acid monomer and 25Kg of vinyl acetate monomer, and continuing to react for 4 hours after dropwise adding, obtaining the polymer emulsion.
Preparation of polymer latex powder: adopting a sodium hydroxide aqueous solution with the weight percentage concentration of 5 percent to adjust the pH value of the polymer emulsion to 8.0, adding a polyvinyl alcohol aqueous solution with the weight percentage concentration of 5 percent, uniformly stirring, and then carrying out spray drying treatment on the polymer emulsion powder; wherein, the dosage of the polyvinyl alcohol water solution with the weight percentage concentration of 5 percent is 8 percent of the weight of the polymer emulsion.
Preparing the polymer anti-crack dry powder plastering mortar: 50Kg of P.O42.5 Portland cement, 15Kg of CA-50 high-alumina cement, 15Kg of anhydrous anhydrite, 115Kg of II-grade fly ash, 735Kg of sand, 0.13Kg of thickening agent, 1.0Kg of fiber, 25Kg of polymer emulsion powder, 0.15Kg of thixotropic agent, 25Kg of thixotropic lubricant and 1.0Kg of water reducing agent are evenly mixed to obtain the product. Wherein, the sand is 26 by weight: 24: 12: the 11 continuous graded sand with the grain diameter of 3.35-2.36mm, the 2.36-1.18mm continuous graded sand, the 1.18-0.6mm continuous graded sand and the 0.6-0.075mm continuous graded sand.
Preparing the polymer anti-crack plastering mortar: 100Kg of polymer crack-resistant dry powder plastering mortar and 20Kg of water are mixed uniformly to obtain the mortar.
Example 2
Preparation of polymer emulsion: adding a core-layer mixed monomer containing 25Kg of triethylene glycol dimethacrylate monomer, 10Kg of 2,2, 4-trimethylhexamethylene bis (2-carbamoyloxyethyl) dimethacrylate monomer and 8Kg of acrylic acid-2-hydroxyethyl ester monomer into a mixed solution containing 0.4Kg of sodium bicarbonate acid buffer, 0.7Kg of potassium sulfate initiator, 1.2Kg of alkyl diphenyl ether disulfonate disodium emulsifier and 90Kg of deionized water for pre-emulsification, heating to 90 ℃, reacting for 3 hours, adding 12.5Kg of diacetone acrylamide monomer, uniformly mixing, dropwise adding a shell-layer mixed monomer containing 10Kg of acrylic acid-2-hydroxyethyl ester monomer, 12.5Kg of 2-acrylamide-2-methylpropanesulfonic acid monomer and 30Kg of vinyl acetate monomer, and continuing to react for 3 hours after dropwise adding, obtaining polymer emulsion;
preparation of polymer latex powder: adopting a sodium hydroxide aqueous solution with the weight percentage concentration of 4 percent to adjust the pH value of the polymer emulsion to 7.9, adding a polyvinyl alcohol aqueous solution with the weight percentage concentration of 4 percent, uniformly stirring, and then carrying out spray drying treatment on the polymer emulsion powder; wherein, the dosage of the polyvinyl alcohol aqueous solution with the weight percentage concentration of 4 percent is 10 percent of the weight of the polymer emulsion.
Preparing the polymer anti-crack dry powder plastering mortar: 55Kg of P.O42.5 portland cement, 17Kg of CA-50 high alumina cement, 17Kg of anhydrous anhydrite, 110Kg of II-grade fly ash, 720Kg of sand, 0.1Kg of thickener, 1.3Kg of fiber, 27Kg of polymer latex powder, 0.2Kg of thixotropic agent, 23Kg of thixotropic lubricant, and 0.7Kg of water reducer are mixed uniformly to obtain the product. Wherein, the sand is 25: 25: 11: 12 continuous graded sand with the grain diameter of 3.35-2.36mm, continuous graded sand with the grain diameter of 2.36-1.18mm, continuous graded sand with the grain diameter of 1.18-0.6mm and continuous graded sand with the grain diameter of 0.6-0.075 mm.
Preparing the polymer anti-crack plastering mortar: 100Kg of polymer crack-resistant dry powder plastering mortar and 18Kg of water are mixed uniformly to obtain the mortar.
Example 3
Preparation of polymer emulsion: adding a core-layer mixed monomer containing 30Kg of triethylene glycol dimethacrylate monomer, 12.5Kg of 2,2, 4-trimethylhexamethylene bis (2-carbamoyloxyethyl) dimethacrylate monomer and 9Kg of acrylic acid-2-hydroxyethyl ester monomer into a mixed solution containing 0.3Kg of sodium bicarbonate acid buffer, 0.6Kg of potassium sulfate initiator, 1Kg of alkyl diphenyl ether disulfonate disodium emulsifier and 110Kg of deionized water for pre-emulsification, heating to 80 ℃, reacting for 5 hours, adding 10Kg of diacetone acrylamide monomer, uniformly mixing, dropwise adding a shell-layer mixed monomer containing 12.5Kg of acrylic acid-2-hydroxyethyl ester monomer, 15Kg of 2-acrylamide-2-methylpropanesulfonic acid monomer and 20Kg of vinyl acetate monomer, and continuing to react for 5 hours after dropwise adding, obtaining the polymer emulsion.
Preparation of polymer latex powder: adopting a sodium hydroxide aqueous solution with the weight percentage concentration of 6 percent to adjust the pH value of the polymer emulsion to 8.1, adding a polyvinyl alcohol aqueous solution with the weight percentage concentration of 6 percent, uniformly stirring, and then carrying out spray drying treatment on the polymer emulsion powder; wherein, the dosage of the polyvinyl alcohol aqueous solution with the weight percentage concentration of 6 percent is 5 percent of the weight of the polymer emulsion.
Preparing the polymer anti-crack dry powder plastering mortar: 65Kg of P.O42.5 Portland cement, 13Kg of CA-50 high alumina cement, 13Kg of anhydrous anhydrite, 120Kg of II-grade fly ash, 750Kg of sand, 0.15Kg of thickening agent, 0.7Kg of fiber, 23Kg of polymer emulsion powder, 0.1Kg of thixotropic agent, 27Kg of thixotropic lubricant and 01.3Kg of water reducing agent are mixed uniformly to obtain the product. Wherein, the sand is 27: 23: 13: 10 continuous graded sand with the grain diameter of 3.35-2.36mm, continuous graded sand with the grain diameter of 2.36-1.18mm, continuous graded sand with the grain diameter of 1.18-0.6mm and continuous graded sand with the grain diameter of 0.6-0.075 mm.
Preparing the polymer anti-crack plastering mortar: 100Kg of polymer crack-resistant dry powder plastering mortar and 22Kg of water are mixed uniformly to obtain the mortar.
Comparative example 1
Preparing the polymer anti-crack dry powder plastering mortar: the only difference compared to example 1 was that the polymer latex powder was replaced with VINNAPAS redispersible latex powder produced by wacker chemicals, germany.
Preparing the polymer anti-crack plastering mortar: 100Kg of polymer crack-resistant dry powder plastering mortar and 20Kg of water are mixed uniformly to obtain the mortar.
After being pumped through a pipe with the length of 100 meters and the inner diameter of 6 centimeters, the polymer anti-crack plastering mortar provided by the embodiments 1 to 3 does not bleed or segregate; and then, vertically spraying the polymer anti-crack plastering mortar provided by the embodiments 1 to 3 on a wall by using a spraying machine, wherein the spraying thickness is 8 cm, and the coating does not have a sagging phenomenon. The polymer repair dry powder mortar and the polymer repair mortar provided by the invention have excellent wet bonding strength and good thixotropy, and not only ensure the machine spraying construction state, but also have good anti-sliding and anti-hanging effects after being applied to walls.
Similarly, after the polymer anti-crack plastering mortar provided by the comparative example 1 is pumped through a pipe with the length of 100 meters and the inner diameter of 6 centimeters, the polymer anti-crack plastering mortar does not bleed and is not isolated; and then vertically spraying the polymer anti-crack plastering mortar provided in the comparative example 1 on a wall body by using a spraying machine, wherein the spraying thickness is 8 cm, and the coating has a sagging phenomenon.
The polymer anti-crack dry powder plastering mortars provided in examples 1 to 3 and comparative example 1 were measured for their properties and the results are shown in Table 1. Wherein, the compressive strength is tested according to the relevant regulations of GBT17671-1999 cement mortar strength test method; the linear shrinkage is tested according to the relevant regulations of JGJ/T70-2009 building mortar basic performance test method standard; the transverse deformation capability is tested according to appendix B of JC/T1004-; the fold-crush ratio is tested according to the performance index of 6 coating mortar in GBT29906-2013 'molded polyphenyl plate thin plastered exterior wall external thermal insulation system material'; the tensile bonding strength is tested according to the relevant regulations of JGJ/T70-2009 building mortar basic performance test method standard, and the curing is carried out according to the relevant regulations of JCT907-2002 concrete interface treating agent; the corrosion effect of the steel bars is tested according to the relevant regulations of JC/T986-2005 Cement-based grouting material.
TABLE 1
As can be seen from Table 1, the results of the transverse deformability and the crush ratio measurement show that the polymer anti-crack dry powder plastering mortar provided by the invention has excellent flexibility; the determination result of the tensile bond strength (untreated 14d) and the determination result of the wet bond strength show that the polymer anti-crack dry plastering mortar provided by the invention has excellent adhesion; the measurement result of the linear shrinkage rate shows that the polymer anti-crack dry powder plastering mortar provided by the invention has extremely low shrinkage rate. Therefore, the polymer anti-cracking dry powder plastering mortar provided by the invention has no cracking, no expansion joint and no bulge.
The determination of tensile bonding strength (soaking treatment, heat treatment and freeze-thaw cycle treatment) can show that after ultimate treatment, the polymer anti-crack dry powder plastering mortar provided by the invention still has good tensile bonding strength, and the tensile bonding strength exceeds 0.5 MPa and is far greater than the safety requirement of the bonding force of 0.3MPa of the base layer required by plastering construction. Therefore, the durability of the polymer anti-cracking dry powder plastering mortar provided by the invention is good.
It should be understood that the preparation methods described in the examples are only for illustrating the present invention and are not to be construed as limiting the present invention, and that the simple modifications of the preparation methods of the present invention based on the concept of the present invention are within the scope of the present invention as claimed.
Claims (9)
1. The polymer anti-cracking dry powder plastering mortar is characterized by comprising, by mass, 55-65 parts of portland cement, 25-35 parts of high-alumina cement, 13-17 parts of gypsum, 120 parts of fly ash 110-containing materials, 750 parts of sand 720-containing materials, 0.1-0.15 part of thickening agent, 0.7-1.3 parts of fiber, 23-27 parts of polymer latex powder, 0.1-0.2 part of thixotropic agent, 23-27 parts of thixotropic lubricant and 0.7-1.3 parts of water reducing agent;
the polymer latex powder is prepared by the following method:
(1) preparation of polymer emulsion: adding a nuclear layer mixed monomer containing a triethylene glycol dimethacrylate monomer, a 2,2, 4-trimethylhexamethylene bis (2-carbamoyloxyethyl) dimethacrylate monomer and a 2-hydroxyethyl acrylate monomer into a mixed solution containing an acidic buffering agent, an initiator, an emulsifier and deionized water for pre-emulsification, heating to 80-90 ℃, reacting for 3-5 hours, adding a diacetone acrylamide monomer for uniform mixing, dropwise adding a shell layer mixed monomer containing a 2-hydroxyethyl acrylate monomer, a 2-acrylamide-2-methylpropanesulfonic acid monomer and a vinyl acetate monomer, and continuously reacting for 3-5 hours after dropwise adding is finished to obtain a polymer emulsion; wherein, calculated by weight portion, the composition comprises 20-30 portions of triethylene glycol dimethacrylate monomer, 10-15 portions of 2,2, 4-trimethylhexamethylene-bis (2-carbamoyloxyethyl) dimethacrylate monomer, 8-10 portions of acrylic acid-2-hydroxyethyl ester monomer, 0.3-0.5 portion of acid buffer, 0.5-0.7 portion of initiator, 1-1.4 portions of emulsifier, 90-110 portions of deionized water, 10-15 portions of diacetone acrylamide monomer, 10-15 portions of acrylic acid-2-hydroxyethyl ester monomer, 10-15 portions of 2-acrylamide-2-methylpropanesulfonic acid monomer and 20-30 portions of vinyl acetate monomer;
(2) preparation of polymer latex powder: adopting a sodium hydroxide aqueous solution with the weight percentage concentration of 4-6% to adjust the pH value of the polymer emulsion to 7.9-8.1, adding a polyvinyl alcohol aqueous solution with the weight percentage concentration of 4-6% to stir evenly, and then carrying out spray drying treatment to obtain polymer latex powder; wherein, the dosage of the polyvinyl alcohol aqueous solution with the weight percentage concentration of 4-6 percent is 5-10 percent of the weight of the polymer emulsion.
2. The polymeric crack resistant dry powder plastering mortar of claim 1, wherein the acidic buffer is sodium bicarbonate.
3. The polymeric crack resistant dry powder plastering mortar of claim 1, wherein the initiator is selected from one or more of potassium persulfate, sodium persulfate, and ammonium persulfate.
4. The polymeric crack resistant dry powder plastering mortar of claim 1, wherein the emulsifier is disodium alkyl diphenyl oxide disulfonate.
5. The polymeric anti-crack dry powder plastering mortar of claim 1, wherein the portland cement is selected from the group consisting of p.o42.5 portland cement; the high alumina cement is selected from CA-50 high alumina cement.
6. The polymeric crack resistant dry powder plastering mortar of claim 1, wherein the gypsum is selected from the group consisting of anhydrite.
7. The polymeric crack resistant dry powder plastering mortar of claim 1, wherein the fly ash is selected from class II fly ash.
8. The polymeric crack resistant dry powder plastering mortar of claim 1, wherein the sand is prepared from (25-27) by weight: (23-25): (11-13): (10-12) continuous graded sand with the grain size of 3.35-2.36mm, continuous graded sand with the grain size of 2.36-1.18mm, continuous graded sand with the grain size of 1.18-0.6mm and continuous graded sand with the grain size of 0.6-0.075 mm.
9. The polymer anti-crack plastering mortar is characterized by comprising 100 parts by weight of the polymer anti-crack dry powder plastering mortar as claimed in any one of claims 1 to 8 and 18 to 22 parts by weight of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336488.XA CN109180133B (en) | 2018-11-12 | 2018-11-12 | Polymer anti-crack dry powder plastering mortar and polymer anti-crack plastering mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336488.XA CN109180133B (en) | 2018-11-12 | 2018-11-12 | Polymer anti-crack dry powder plastering mortar and polymer anti-crack plastering mortar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109180133A CN109180133A (en) | 2019-01-11 |
| CN109180133B true CN109180133B (en) | 2021-06-18 |
Family
ID=64938725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811336488.XA Active CN109180133B (en) | 2018-11-12 | 2018-11-12 | Polymer anti-crack dry powder plastering mortar and polymer anti-crack plastering mortar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109180133B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110683813A (en) * | 2019-11-18 | 2020-01-14 | 韶关市第一建筑工程有限公司 | Repair system for large-area structure and construction process thereof |
| CN110818361B (en) * | 2019-12-17 | 2021-12-14 | 北京建工新型建材有限责任公司 | Machine-sprayed thick-layer polymer repair mortar |
| CN111003995B (en) * | 2019-12-17 | 2021-12-14 | 北京建工新型建材有限责任公司 | Reinforced flexible plastering anti-crack mortar |
| CN113307572A (en) * | 2021-06-17 | 2021-08-27 | 烟台瑞祥干混砂浆有限公司 | Anti-weathering plastering mortar and preparation process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337798A (en) * | 2008-08-16 | 2009-01-07 | 闵博乾 | Polymers anti-cracking mortar |
| CN101575399A (en) * | 2009-05-31 | 2009-11-11 | 上海三瑞化学有限公司 | Preparation method of re-dispersible latex powder of acrylic acid |
| CN102924014A (en) * | 2012-11-16 | 2013-02-13 | 深圳广田高科新材料有限公司 | Binding mortar with light weight and high droop resistance and preparation and use methods |
| CN103588445A (en) * | 2013-11-15 | 2014-02-19 | 江苏蓝圈新材料有限公司 | Anti-crack polymer mortar |
-
2018
- 2018-11-12 CN CN201811336488.XA patent/CN109180133B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337798A (en) * | 2008-08-16 | 2009-01-07 | 闵博乾 | Polymers anti-cracking mortar |
| CN101575399A (en) * | 2009-05-31 | 2009-11-11 | 上海三瑞化学有限公司 | Preparation method of re-dispersible latex powder of acrylic acid |
| CN102924014A (en) * | 2012-11-16 | 2013-02-13 | 深圳广田高科新材料有限公司 | Binding mortar with light weight and high droop resistance and preparation and use methods |
| CN103588445A (en) * | 2013-11-15 | 2014-02-19 | 江苏蓝圈新材料有限公司 | Anti-crack polymer mortar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109180133A (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109180128B (en) | Polymer repair dry powder mortar and polymer repair mortar | |
| CN109180133B (en) | Polymer anti-crack dry powder plastering mortar and polymer anti-crack plastering mortar | |
| CN110922137B (en) | Construction process for large-area structure repair system | |
| CN109851303B (en) | Low-shrinkage corrosion-resistant ultrahigh-performance concrete and preparation method, construction method and application thereof | |
| KR100846159B1 (en) | A composition water soluble polymer for concrete structure section repair and surface recover | |
| CA2609853A1 (en) | Fast binder compositions for concrete parts and works containing a calcium salt | |
| CN110818361B (en) | Machine-sprayed thick-layer polymer repair mortar | |
| CN105347760A (en) | Slow-setting type waterproof mortar having self-repairing function and secondary permeability resistance as well as preparation method thereof | |
| CN108821640B (en) | Concrete mortar anti-cracking additive and preparation method thereof | |
| WO2021180309A1 (en) | Processes for producing foamed concrete | |
| CN109265064B (en) | Preparation method of high-strength alkali-free chlorine-free accelerator | |
| CN105347767A (en) | Quick-setting type waterproof mortar having self-repairing function and secondary permeability resistance as well as preparation method thereof | |
| CN110922138B (en) | Machine-sprayed polymer anti-crack plastering mortar | |
| CN107140897A (en) | A kind of decorative engineering construction water cement mortar and preparation method thereof | |
| JP5114910B2 (en) | Repair method of ALC structure | |
| KR102423871B1 (en) | Crack resisting hybrid fiber-reinforced cementitious mortar composition having excellent repairing method using the same | |
| CN105000847A (en) | Anticorrosion and rust resistant type post-tensioned prestressed duct grouting material and preparation method thereof | |
| CN114436583A (en) | Expansion fiber anti-cracking waterproof concrete and preparation method thereof | |
| CN114262199A (en) | Waterborne epoxy modified floor mortar | |
| CN109665790B (en) | Cement-based self-leveling mortar and preparation method thereof | |
| JP5918094B2 (en) | Repair method using curable cementitious composite material | |
| CN116535180B (en) | Fiber reinforced mortar and preparation method thereof | |
| CN114773011B (en) | Interface joint material based on industrial solid wastes and preparation method thereof | |
| CN111003995B (en) | Reinforced flexible plastering anti-crack mortar | |
| CN117303792B (en) | Concrete air-tight agent and preparation method thereof |
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 |