CN104355564A - Dry mixed mortar additive - Google Patents
Dry mixed mortar additive Download PDFInfo
- Publication number
- CN104355564A CN104355564A CN201410512903.8A CN201410512903A CN104355564A CN 104355564 A CN104355564 A CN 104355564A CN 201410512903 A CN201410512903 A CN 201410512903A CN 104355564 A CN104355564 A CN 104355564A
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- mixed mortar
- dry
- mortar
- water
- ether
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a dry mixed mortar additive. The additive comprises the following components in percentage by weight: 30-40% of redispersible polymer powder, 20-30% of cellulose ether,10-15% of fiber, 5-8% of a water reducing agent, 3-6% of a thickening time control agent, 5-10% of a waterproof agent, and 2-5% of an antifoaming agent. The additive disclosed by the invention improves the water preserving capability and the binding strength of dry mixed mortar, so that the working performance of the dry mixed mortar is better.
Description
Technical field
The present invention relates to a kind of additives for Dry-Mixed Mortar.
Technical background
Along with people improve constantly the requirement of environmental protection and construction quality, people more and more pay attention to the quality of dry-mixed mortar, the performance such as workability, water-retentivity, sagging resistance, intensity that additives for Dry-Mixed Mortar can not only improve mortar is added in dry-mixed mortar, and the kind of dry-mixed mortar can be enriched, expand the use field of dry-mixed mortar.At present, additives for Dry-Mixed Mortar mainly continues to use traditional mortar additive, even applies concrete admixture, and this makes dry-mixed mortar of low quality.
Summary of the invention
The technical problem that the present invention solves provides a kind of additives for Dry-Mixed Mortar, strengthens water-retentivity and the bonding strength of dry-mixed mortar, makes the serviceability of dry-mixed mortar better.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of additives for Dry-Mixed Mortar, comprises following component and the weight percent of each component is: redisperable polymer powder: 30 ~ 40%, ether of cellulose: 20 ~ 30%, fiber: 10 ~ 15%, water reducer: 5 ~ 8%, adjustable solidification agent: 3 ~ 6%, water-resisting agent: 5 ~ 10%, defoamer: 2 ~ 5%.
Preferably, the weight percent of each component is: redisperable polymer powder: 40%, ether of cellulose: 20%, fiber: 15%, water reducer: 5%, adjustable solidification agent 5%, water-resisting agent: 10%, defoamer: 5%.
Preferably, described redisperable polymer powder is vinyl acetate and acrylate and higher aliphatic vinyl acetate terpolymer rubber powder.
Preferably, described ether of cellulose is methyl hydroxyethylcellulose ether.
With the addition of redisperable polymer powder in the present invention, the following performance of fresh mortar can be improved: 1, water-retentivity and workability; 2, to the adhesiveproperties of different basic unit; 3, the flexibility of mortar and deformation performance; 4, folding strength and cohesion; 5, wear resistance and toughness.
Effective effect of the present invention is: ether of cellulose is as bonded thickening material, make fresh mortar thickening thus prevent from emanating and obtain the plastic of uniformity, the even tiny bubble introduced in mortar can also be stablized, contribute to keeping the moisture (free water) in thin layer mortar simultaneously, thus make cement can have more times aquation after mortar construction.
Embodiment
A kind of additives for Dry-Mixed Mortar of the present invention, comprises following component and the weight percent of each component is: redisperable polymer powder: 30 ~ 40%, ether of cellulose: 20 ~ 30%, fiber: 10 ~ 15%, water reducer: 5 ~ 8%, adjustable solidification agent: 3 ~ 6%, water-resisting agent: 5 ~ 10%, defoamer: 2 ~ 5%.
Embodiment 1: the weight percent of each component is: redisperable polymer powder: 40%, ether of cellulose: 20%, fiber: 15%, water reducer: 5%, adjustable solidification agent 5%, water-resisting agent: 10%, defoamer: 5%.
Redisperable polymer powder is vinyl acetate and acrylate and higher aliphatic vinyl acetate terpolymer rubber powder, can improve the following performance of fresh mortar: 1, water-retentivity and workability; 2, to the adhesiveproperties of different basic unit; 3, the flexibility of mortar and deformation performance; 4, folding strength and cohesion; 5, wear resistance and toughness.
Ether of cellulose is methyl hydroxyethylcellulose ether, make fresh mortar thickening thus prevent from emanating and obtain the plastic of uniformity, the even tiny bubble introduced in mortar can also be stablized, contribute to keeping the moisture (free water) in thin layer mortar simultaneously, thus make cement can have more times aquation after mortar construction.
Fiber adopts high strength high modulus polyvinyl alcohol fiber, fiber is random in cement matrix to be uniformly distributed, and combines closely with cement, thus stops the formation and development of microfracture, make mortar matrix closely knit, thus make it have shock resistance, the anti-cracking performance of water resistance and excellence.
Water reducer adopts naphthalene water reducer, preferably uses beta-naphthalenesulfonic-acid formaldehyde condensation compound, and the basic function of water reducer reduces the water requirement of mortar, thus improve mortar ultimate compression strength.
Adjustable solidification agent has accelerating chemicals and retardant two class, accelerating chemicals is for accelerating the setting and harden of mortar, use calcium formiate and Quilonum Retard, aluminate, water glass, retardant is for slowing down the setting and harden of mortar, tartrate, citric acid and salt thereof and gluconate, can require reasonable selection according to mortar condensation of constructing.
Water-resisting agent adopts organic silane compound or its modified compound, organic silane compound has active reactive group, under high alkalinity environment after hydrated cementitious, organo-functional group hydrolysis hydrophilic in silane forms the silanol of high reaction activity, silanol continues to carry out irreversible reaction with the oh group in hydrolysis product of cement and forms Chemical bond, thus makes the silane linked together by commissure effect be securely fixed in the surface of hole wall in sand-cement slurry.Because the organo-functional group of hydrophobic is towards the outside of hole wall, the surface of hole is made to obtain hydrophobic nature, thus for mortar brings overall hydrophobic effect.
Defoamer adopts polyvalent alcohol or polysiloxane, can reduce the air content of fresh mortar, and defoamer, except adjustment air bubble content, can also reduce contraction.
Claims (4)
1. an additives for Dry-Mixed Mortar, is characterized in that: comprise following component and the weight percent of each component is: redisperable polymer powder: 30 ~ 40%, ether of cellulose: 20 ~ 30%, fiber: 10 ~ 15%, water reducer: 5 ~ 8%, adjustable solidification agent: 3 ~ 6%, water-resisting agent: 5 ~ 10%, defoamer: 2 ~ 5%.
2. a kind of additives for Dry-Mixed Mortar according to claim 1, is characterized in that: the weight percent of each component is: redisperable polymer powder: 40%, ether of cellulose: 20%, fiber: 15%, water reducer: 5%, adjustable solidification agent 5%, water-resisting agent: 10%, defoamer: 5%.
3. a kind of additives for Dry-Mixed Mortar according to claim 1 and 2, is characterized in that: described redisperable polymer powder is vinyl acetate and acrylate and higher aliphatic vinyl acetate terpolymer rubber powder.
4. a kind of additives for Dry-Mixed Mortar according to claim 1 and 2, is characterized in that: described ether of cellulose is methyl hydroxyethylcellulose ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410512903.8A CN104355564A (en) | 2014-09-29 | 2014-09-29 | Dry mixed mortar additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410512903.8A CN104355564A (en) | 2014-09-29 | 2014-09-29 | Dry mixed mortar additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104355564A true CN104355564A (en) | 2015-02-18 |
Family
ID=52522905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410512903.8A Pending CN104355564A (en) | 2014-09-29 | 2014-09-29 | Dry mixed mortar additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104355564A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108424036A (en) * | 2018-05-07 | 2018-08-21 | 滁州市炬基节能新型建材有限公司 | Additive of dry-mixed mortar and preparation method thereof |
| CN108439853A (en) * | 2018-05-07 | 2018-08-24 | 滁州市炬基节能新型建材有限公司 | A kind of Multifunctional dry-mixed mortar additive and preparation method thereof |
| CN115231850A (en) * | 2022-07-15 | 2022-10-25 | 崔光律 | Novel waterproof additive for cement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06305804A (en) * | 1993-04-21 | 1994-11-01 | Shin Etsu Chem Co Ltd | Preparation of concrete kneaded product |
| CN101786846A (en) * | 2010-01-07 | 2010-07-28 | 上海雅达特种涂料有限公司 | Building dry powder mortar |
| CN102603249A (en) * | 2011-12-23 | 2012-07-25 | 上海中技桩业股份有限公司 | Economical anti-efflorescence and anti-cracking joint mixture for ceramic tile |
| CN102659380A (en) * | 2012-05-30 | 2012-09-12 | 南京天云新型建材科技有限公司 | Modified building plastering mortar for aerated concrete |
| CN103159447A (en) * | 2013-03-13 | 2013-06-19 | 厦门路桥翔通建材科技有限公司 | Composition and its preparation method and use |
-
2014
- 2014-09-29 CN CN201410512903.8A patent/CN104355564A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06305804A (en) * | 1993-04-21 | 1994-11-01 | Shin Etsu Chem Co Ltd | Preparation of concrete kneaded product |
| CN101786846A (en) * | 2010-01-07 | 2010-07-28 | 上海雅达特种涂料有限公司 | Building dry powder mortar |
| CN102603249A (en) * | 2011-12-23 | 2012-07-25 | 上海中技桩业股份有限公司 | Economical anti-efflorescence and anti-cracking joint mixture for ceramic tile |
| CN102659380A (en) * | 2012-05-30 | 2012-09-12 | 南京天云新型建材科技有限公司 | Modified building plastering mortar for aerated concrete |
| CN103159447A (en) * | 2013-03-13 | 2013-06-19 | 厦门路桥翔通建材科技有限公司 | Composition and its preparation method and use |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108424036A (en) * | 2018-05-07 | 2018-08-21 | 滁州市炬基节能新型建材有限公司 | Additive of dry-mixed mortar and preparation method thereof |
| CN108439853A (en) * | 2018-05-07 | 2018-08-24 | 滁州市炬基节能新型建材有限公司 | A kind of Multifunctional dry-mixed mortar additive and preparation method thereof |
| CN115231850A (en) * | 2022-07-15 | 2022-10-25 | 崔光律 | Novel waterproof additive for cement |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150218 |