CN112939539A - Anti-crack mortar dry powder and using method thereof - Google Patents
Anti-crack mortar dry powder and using method thereof Download PDFInfo
- Publication number
- CN112939539A CN112939539A CN202110310918.6A CN202110310918A CN112939539A CN 112939539 A CN112939539 A CN 112939539A CN 202110310918 A CN202110310918 A CN 202110310918A CN 112939539 A CN112939539 A CN 112939539A
- Authority
- CN
- China
- Prior art keywords
- dry powder
- crack mortar
- mortar dry
- stirring
- cement
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- 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.)
- Pending
Links
- 239000000843 powder Substances 0.000 title claims abstract description 32
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000004576 sand Substances 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 239000004568 cement Substances 0.000 claims abstract description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 9
- 239000011575 calcium Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004743 Polypropylene Substances 0.000 claims abstract description 4
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 4
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 4
- 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 abstract description 4
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 239000011398 Portland cement Substances 0.000 claims description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 239000004816 latex Substances 0.000 claims description 2
- 229920000126 latex Polymers 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- 238000005336 cracking Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- -1 D60M Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004381 surface treatment Methods 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
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
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 discloses anti-crack mortar dry powder and a using method thereof, the anti-crack mortar dry powder is prepared by stirring cement, 20-60 mesh coarse sand, 60-150 mesh fine sand, calcium powder, hydroxypropyl methylcellulose, PP fiber and N2098, and the anti-crack mortar dry powder and water are prepared according to the weight ratio of 4: 1; stirring with an electric stirrer for 3min, standing for 5min, and stirring again; the amount of each preparation is used up in 2 h. The invention has the advantages of good flexibility, high product bonding strength, good waterproof and anti-cracking effects, convenient operation, easy construction and the like, can ensure long-term service performance, and is environment-friendly and safe.
Description
Technical Field
The invention relates to a building material, in particular to an anti-crack mortar dry powder and a using method thereof.
Background
The anti-cracking mortar is prepared by mixing cement, quartz sand, polymer cementing agent and various additives uniformly by a machine, and mainly can meet certain deformation and keep non-cracking. The existing anti-crack mortar is actually the mortar mixed with polymer (glue) or the mortar mixed with fiber, if the links of construction, maintenance and the like are not good or water is not added in proportion, the base surface treatment and the construction quality are poor, or the existing anti-crack mortar can still crack under the states of dry shrinkage, insolation, dry hot air and the like regardless of the fact that the existing anti-crack mortar is completely ignored after construction. Therefore, the environmental protection is not good, the construction is not too thick, and the durability is difficult to ensure.
Disclosure of Invention
The invention aims to provide anti-crack mortar dry powder and a using method thereof, which are used for improving the construction quality and preventing cracks from appearing on the inner wall and the outer wall of various buildings, so that the anti-crack mortar dry powder can be used as a decorative surface layer.
In order to achieve the purpose, the invention adopts the following technical scheme. An anti-crack mortar dry powder is prepared by stirring cement, 20-60 mesh coarse sand, 60-150 mesh fine sand, calcium powder, hydroxypropyl methylcellulose, PP fiber and N2098, wherein the weight percentages of the formulas are as follows: 30-35%, 18-22%, 38-45%, 6-7%, 0.1-0.3%, 0.1-0.3%, 0.5-2%; the cement is early strength type cement, 425# ordinary portland cement or 325# ordinary portland cement; the calcium powder is heavy calcium carbonate with the average particle size of 5-10 mu m; the PP fiber has the length of less than or equal to 6mm, the tensile strength of more than 1000g/mm, and is acid-base resistant, corrosion resistant and crack resistant; the N2098 is dispersible latex powder, and the viscosity is more than or equal to 20 ten thousand units.
An application method of anti-crack mortar dry powder is characterized in that the anti-crack mortar dry powder and water are prepared according to the weight ratio of 4: 1; stirring with an electric stirrer for 3min, standing for 5min, and stirring again; the amount of each preparation is used up in 2 h.
The invention effectively solves the problem of light heat preservation layer cracking which always puzzles the building industry, and is a high-quality environment-friendly material with high tensile degree and easy freezing resistance in construction; the heat-insulating system for the cover surface can effectively solve the problems of heat insulation, wind pressure resistance, fire resistance, freeze-thaw resistance, hydrophobicity, weather resistance, flame retardance, air permeability, cracking and the like of the heat insulation of the outer wall, has the advantages of good flexibility, high bonding strength of products, good waterproof and anti-cracking effects, convenient operation, easy construction and the like, can ensure long-term use performance, and is environment-friendly and safe.
Detailed Description
The present invention will be described in detail with reference to examples. An anti-crack mortar dry powder is prepared by stirring cement, 20-60 mesh coarse sand, 60-150 mesh fine sand, calcium powder, hydroxypropyl methylcellulose, PP fiber and N2098, wherein the weight percentages of the formulas are as follows: 30-35%, 18-22%, 38-45%, 6-7%, 0.1-0.3%, 0.1-0.3%, 0.5-2%. When in use, the anti-crack mortar dry powder and the water are prepared according to the weight ratio of 4: 1; stirring with an electric stirrer for 3min, standing for 5min, and stirring again; the amount per configuration should be used up within 2 h.
Example 1: an anti-crack mortar dry powder comprises the following components: 425# common portland cement, 20-60 meshes of coarse sand, 60-150 meshes of fine sand, calcium powder, D60M, PP fiber and N2098, wherein the weight percentages of the components are as follows: 32%, 20%, 40%, 6.7%, 0.2%, 0.12%, 1%;
the using method comprises the following steps:
1) preparing anti-crack mortar: preparing the anti-crack mortar dry powder and water according to the weight ratio of 4: 1;
2) stirring with an electric stirrer for 3min, standing for 5min, and stirring again;
3) the amount of each preparation is used up in 2 h.
Example 2: an anti-crack mortar dry powder comprises the following components: 325# ordinary portland cement, 20-60 meshes of coarse sand, 60-150 meshes of fine sand, calcium powder, D60M, PP fiber and N2098, wherein the weight percentages of the components are as follows: 30%, 22%, 41%, 6.3%, 0.1%, 0.1%, 0.5%; the rest is the same as in example 1.
Example 3: an anti-crack mortar dry powder comprises the following components: the early strength cement, 20-60 mesh coarse sand, 60-150 mesh fine sand, calcium powder, D60M, PP fiber and N2098, wherein the weight percentages of the components are as follows: 32%, 18%, 43%, 6.2%, 0.3%, 0.3%, 0.2%; the rest is the same as in example 1.
The anti-crack mortar dry powder is added with the fibers, and is slightly elastic after being formed, so that cracks are not easy to appear. Therefore, the initial surface strength is slightly lower, but the normal use is not influenced, and the decorative surface layer can be used. When the mortar is used as a plastering mortar project, the mortar does not need maintenance, and has wide application range, such as masonry, pouring, painting, plastering, decoration and the like. Because the high-quality clear water sand is adopted and dried and sieved, the mud content is almost zero, the strength or rigidity is high, and the shrinkage phenomenon is not obvious, the natural curing by air humidity can be realized, and the additional manual curing is not needed.
Claims (2)
1. The anti-crack mortar dry powder is characterized by being prepared by stirring cement, 20-60-mesh coarse sand, 60-150-mesh fine sand, calcium powder, hydroxypropyl methylcellulose, PP fiber and N2098, wherein the weight percentages of the components are as follows: 30-35%, 18-22%, 38-45%, 6-7%, 0.1-0.3%, 0.1-0.3%, 0.5-2%; the cement is early strength type cement, 425# ordinary portland cement or 325# ordinary portland cement; the calcium powder is heavy calcium carbonate with the average particle size of 5-10 mu m; the PP fiber has the length of less than or equal to 6mm, the tensile strength of more than 1000g/mm, and is acid-base resistant, corrosion resistant and crack resistant; the N2098 is dispersible latex powder, and the viscosity is more than or equal to 20 ten thousand units.
2. The use method of the anti-crack mortar dry powder according to claim 1, characterized in that the anti-crack mortar dry powder and water are prepared according to the weight ratio of 4: 1; stirring with an electric stirrer for 3min, standing for 5min, and stirring again; the amount of each preparation is used up in 2 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110310918.6A CN112939539A (en) | 2021-03-24 | 2021-03-24 | Anti-crack mortar dry powder and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110310918.6A CN112939539A (en) | 2021-03-24 | 2021-03-24 | Anti-crack mortar dry powder and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112939539A true CN112939539A (en) | 2021-06-11 |
Family
ID=76227642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110310918.6A Pending CN112939539A (en) | 2021-03-24 | 2021-03-24 | Anti-crack mortar dry powder and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112939539A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113955987A (en) * | 2021-11-29 | 2022-01-21 | 上海隆振建筑工程股份有限公司 | Production process of anti-crack mortar |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005082434A (en) * | 2003-09-08 | 2005-03-31 | Denki Kagaku Kogyo Kk | Repair mortar |
| CN101037319A (en) * | 2007-03-29 | 2007-09-19 | 宋连伟 | Outer wall heat preservation dry-powder mortar for construction |
| CN103319128A (en) * | 2013-06-18 | 2013-09-25 | 上海宝冶工程技术有限公司 | Anti-crack plaster mortar for outer wall of building and method for preparing anti-crack plaster mortar |
| CN104211338A (en) * | 2014-08-28 | 2014-12-17 | 成都市容德建筑劳务有限公司 | Crack-resisting composite mortar |
| KR101815140B1 (en) * | 2017-06-07 | 2018-01-05 | 김경래 | Organic-inorganic hybrid mortar composition for repairing and restoring the surface of concrete structures and construction method using the same |
| CN110818359A (en) * | 2019-12-05 | 2020-02-21 | 广州盈德建筑工程有限公司 | Anti-crack mortar material and preparation method thereof |
-
2021
- 2021-03-24 CN CN202110310918.6A patent/CN112939539A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005082434A (en) * | 2003-09-08 | 2005-03-31 | Denki Kagaku Kogyo Kk | Repair mortar |
| CN101037319A (en) * | 2007-03-29 | 2007-09-19 | 宋连伟 | Outer wall heat preservation dry-powder mortar for construction |
| CN103319128A (en) * | 2013-06-18 | 2013-09-25 | 上海宝冶工程技术有限公司 | Anti-crack plaster mortar for outer wall of building and method for preparing anti-crack plaster mortar |
| CN104211338A (en) * | 2014-08-28 | 2014-12-17 | 成都市容德建筑劳务有限公司 | Crack-resisting composite mortar |
| KR101815140B1 (en) * | 2017-06-07 | 2018-01-05 | 김경래 | Organic-inorganic hybrid mortar composition for repairing and restoring the surface of concrete structures and construction method using the same |
| CN110818359A (en) * | 2019-12-05 | 2020-02-21 | 广州盈德建筑工程有限公司 | Anti-crack mortar material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 骆中钊，卢昆山，黄方楷: "《新农村房屋建造技术》", 31 May 2017, 金盾出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113955987A (en) * | 2021-11-29 | 2022-01-21 | 上海隆振建筑工程股份有限公司 | Production process of anti-crack mortar |
| WO2023093102A1 (en) * | 2021-11-29 | 2023-06-01 | 上海隆振建筑工程股份有限公司 | Production process for anti-crack mortar |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210611 |