CN103482934B - A kind of cement-base waterproof coating - Google Patents
A kind of cement-base waterproof coating Download PDFInfo
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- CN103482934B CN103482934B CN201310419462.2A CN201310419462A CN103482934B CN 103482934 B CN103482934 B CN 103482934B CN 201310419462 A CN201310419462 A CN 201310419462A CN 103482934 B CN103482934 B CN 103482934B
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Abstract
The invention discloses a kind of cement-base waterproof coating, comprise following component and the ratio of weight and number of each component is: silicate cement: 50-80 part; Polymer emulsion: 40-60 part; Quartz sand: 25-30 part; Silica powder: 20-25 part; Mineral admixture: 5-10 part; Active substance: 4-6 part; Defoamer: 0.1-0.5 part; Diffusant: 0.3-0.6 part; Water reducer: 0.2-0.5 part.The present invention adopts compound cement-base waterproof coating, there is better outside durabitity and better basic unit adaptability, effectively can make up cement based penetration crystallization type water proofing paint cannot fill up larger gap, and cement rigid waterproofing coating flexibility is not enough and polymer emulsion film is swelling again, the defect of water-repellancy difference, substantially increases the tensile strength of polymer coating.
Description
Technical field
The present invention relates to a kind of cement and preparation method thereof, especially relate to a kind of polymer cement mortar and preparation method thereof, belong to building material technical field.
Background technology
Waterproof paint is at building field, apply very general, at present, use more cement based penetration crystallization type water proofing paint, it mainly utilizes the chemistry between the silicate ion in concrete, calcium ion, hydroxide ion and urges enzyme effect, form the principle of calcium silicate crystals, this kind of waterproof paint is because can only repair micro-cracks, and therefore for larger crack, then treatment effect is bad, needs by other waterproof paints, therefore, the scope of its application is limited.In addition, also have a kind of cement-base rigidity water-proofing material, it is mainly base material with cement, then the waterproof paint formed with hydrophober and gelatinous material etc. is mixed, its cost is lower, but it is mainly used in the lower position of waterproof rank, cannot use as one waterproof layer separately.Therefore, for the present situation of current waterproof paint, be badly in need of the waterproof paint of a kind of good combination property, applied range.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of properties excellence, not only there is certain rigidity but also there is certain elastic cement-base waterproof coating.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of cement-base waterproof coating, is characterized in that, comprises following component and the ratio of weight and number of each component is:
Silicate cement: 50-80 part;
Polymer emulsion: 40-60 part;
Quartz sand: 25-30 part;
Silica powder: 20-25 part;
Mineral admixture: 5-10 part;
Active substance: 4-6 part;
Defoamer: 0.1-0.5 part;
Diffusant: 0.3-0.6 part;
Water reducer: 0.2-0.5 part.
Further, above-mentioned cement-base waterproof coating also comprises toughner, ratio of weight and number 0.5-1 part that described toughner adds, and described toughner is any one in carboxymethyl cellulose, polyvinyl alcohol, described toughner can the performance on effective Concrete Structure surface, thus strengthens the toughness of coating itself.
And described polymer emulsion is polyacrylate dispersion or ethylene-vinyl acetate copolymer emulsion.
A nearlyer step, described active substance is water glass.
And described defoamer is organosilicon.
We know, described water glass is a kind of soluble in water, poor stability, the component of crystallizing power difference, and water glass adds separately, cementability and the water tolerance of coating can be affected, be difficult to concrete to fill up closely knit, namely cannot combine closely with concrete, therefore its water pressure that can bear is little, coating water-proof performance is more weak, therefore need to add defoamer, modification is carried out to water glass, strengthens its stability and crystallizing power.
In addition, described diffusant is any one in trolamine, lithium magnesium silicate, MF, NNO.
Described water reducer is then trimeric cyanamide polyester or polyacrylic ester, and water-reducing rate >=20% of described water reducer.Meanwhile, described water reducer also has and carries out cross-linking modified effect to polymer emulsion, modified polymer emulsion its can strengthen the mechanical property of waterproof paint, heat-resisting and ultraviolet-resistant aging further.
The invention has the beneficial effects as follows: the present invention adopts compound cement-base waterproof coating, after paint, namely there is hydration reaction in the water that in compound system, cement runs in polymer emulsion, forms a certain amount of cement gel body, and polymer emulsion itself belongs to aqueous colloidal dispersion, polymer beads wherein disperses in slip, be adsorbed on the surface of cement and hydrated product and other filler, and along with moisture consumption and escape, to draw close at leisure between polymer beads and mutually agglomerated together, namely further solidification forms continuous print coating structure, there is better outside durabitity and better basic unit adaptability, effectively can make up cement based penetration crystallization type water proofing paint cannot fill up larger gap, and cement rigid waterproofing coating flexibility is not enough and polymer emulsion film is swelling again, the defect of water-repellancy difference, substantially increase the tensile strength of polymer coating.
Embodiment
Below in conjunction with specific embodiment, concrete introduction is done to the present invention.
Below in an example, strength grade>=42.5 of the silicate cement adopted, wherein C
3the content of C is high, C
3the content of A is low; The particle size range of described quartz sand is 150-250 μm, and median size≤180 μm, SiO
2content>=99%; The particle size range of described silica powder is 8-12 μm, and median size≤10 μm; Particle diameter≤1 μm of described silicon ash, median size≤0.1 μm, SiO
2content>=90%.And described flyash particle diameter≤1.5 μm, median size≤0.5 μm, SiO
2content>=90%.And water-reducing rate >=20% of described water reducer.
Embodiment 1:
Cement-base waterproof coating comprises following component and the ratio of weight and number of each component is: silicate cement: 80 parts; Polyacrylate dispersion: 40 parts; Quartz sand: 25 parts; Silica powder: 25 parts; Mineral admixture: 5 parts; Water glass: 4 parts; Organosilicon: 0.5 part; Trolamine: 0.6 part; Polyacrylic ester: 0.2 part.
Embodiment 2:
Cement-base waterproof coating comprises following component and the ratio of weight and number of each component is: silicate cement: 50 parts; Ethylene-vinyl acetate copolymer emulsion: 60 parts; Quartz sand: 30 parts; Silica powder: 20 parts; Mineral admixture: 10 parts; Water glass: 6 parts; Organosilicon: 0.1 part; NNO:0.3 part; Trimeric cyanamide polyester: 0.5 part.
Embodiment 3:
Cement-base waterproof coating comprises following component and the ratio of weight and number of each component is: silicate cement: 60 parts; Ethylene-vinyl acetate copolymer emulsion: 50 parts; Quartz sand: 27 parts; Silica powder: 23 parts; Mineral admixture: 8 parts; Water glass: 5 parts; Organosilicon: 0.3 part; MF:0.5 part; Trimeric cyanamide polyester: 0.5 part.
Embodiment 4:
Cement-base waterproof coating comprises following component and the ratio of weight and number of each component is: silicate cement: 80 parts; Polyacrylate dispersion: 40 parts; Quartz sand: 25 parts; Silica powder: 25 parts; Mineral admixture: 5 parts; Water glass: 4 parts; Organosilicon: 0.5 part; Lithium magnesium silicate: 0.6 part; Polyacrylic ester: 0.2 part; Carboxymethyl cellulose: 0.6 part.
Embodiment 5:
Cement-base waterproof coating comprises following component and the ratio of weight and number of each component is: silicate cement: 60 parts; Polyacrylate dispersion: 50 parts; Quartz sand: 27 parts; Silica powder: 23 parts; Mineral admixture: 8 parts; Water glass: 5 parts; Organosilicon: 0.3 part; Trolamine: 0.5 part; Trimeric cyanamide polyester: 0.5 part; Polyvinyl alcohol: 1.0 parts.
In above-described embodiment, silicon ash or flyash can play maximum filling effect, effectively can save the consumption of cement, and can improve workability and the pumpability of cement, improve its impermeability simultaneously.
In addition, the preparation method of the cement-base waterproof coating of above-described embodiment 1-5 is:
(1) prepare coating component A: silicate cement, quartz sand, silica powder, mineral admixture, active substance, defoamer, diffusant, in agitator kettle, stir 10-15min, stir, for subsequent use;
(2) coating B component is prepared: after polymer emulsion and water reducer are uniformly mixed, for subsequent use.
The using method of described cement-base waterproof coating is:
Part A and component B is coated in described concrete surface respectively.
Its average test result is as shown in table 1 after tested for the properties of cement-base waterproof coating prepared by embodiment 1-embodiment 5:
Table 1 is the performance perameter of reactive powder cement matrix material:
As shown in Table 1: the present invention adopts compound cement-base waterproof coating, after paint, namely there is hydration reaction in the water that in compound system, cement runs in polymer emulsion, forms a certain amount of cement gel body, and polymer emulsion itself belongs to aqueous colloidal dispersion, polymer beads wherein disperses in slip, be adsorbed on the surface of cement and hydrated product and other filler, and along with moisture consumption and escape, to draw close at leisure between polymer beads and mutually agglomerated together, namely further solidification forms continuous print coating structure, there is better outside durabitity and better basic unit adaptability, effectively can make up cement based penetration crystallization type water proofing paint cannot fill up larger gap, and cement rigid waterproofing coating flexibility is not enough and polymer emulsion film is swelling again, the defect of water-repellancy difference, substantially increase the tensile strength of polymer coating, and other properties are excellent.
The present invention is illustrated according to above-described embodiment, should be appreciated that above-described embodiment does not limit the present invention in any form, and all employings are equal to replacement or the technical scheme that obtains of equivalent transformation mode, all drop within protection scope of the present invention.
Claims (5)
1. a cement-base waterproof coating, is characterized in that, comprises following component and the ratio of weight and number of each component is:
Silicate cement: 50-80 part;
Polymer emulsion: 40-60 part;
Quartz sand: 25-30 part;
Silica powder: 20-25 part;
Mineral admixture: 5-10 part;
Active substance: 4-6 part;
Defoamer: 0.1-0.5 part;
Diffusant: 0.3-0.6 part;
Water reducer: 0.2-0.5 part;
Also comprise toughner, ratio of weight and number 0.5-1 part that described toughner adds; Described toughner is any one in carboxymethyl cellulose, polyvinyl alcohol; Described active substance is water glass.
2. a kind of cement-base waterproof coating according to claim 1, is characterized in that, described polymer emulsion is polyacrylate dispersion or ethylene-vinyl acetate copolymer emulsion.
3. a kind of cement-base waterproof coating according to claim 1, is characterized in that, described defoamer is organosilicon.
4. a kind of cement-base waterproof coating according to claim 1, is characterized in that, described diffusant is any one in trolamine, lithium magnesium silicate, MF, NNO.
5. a kind of cement-base waterproof coating according to claim 1, is characterized in that, described water reducer is trimeric cyanamide polyester or polyacrylic ester, and water-reducing rate >=20% of described water reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310419462.2A CN103482934B (en) | 2013-09-13 | 2013-09-13 | A kind of cement-base waterproof coating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310419462.2A CN103482934B (en) | 2013-09-13 | 2013-09-13 | A kind of cement-base waterproof coating |
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| CN103482934A CN103482934A (en) | 2014-01-01 |
| CN103482934B true CN103482934B (en) | 2016-01-06 |
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Families Citing this family (16)
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| CN103833299B (en) * | 2014-01-22 | 2015-09-16 | 刘启东 | High-efficiency cement-based capillary crystalline waterproof coating material |
| CN104003675B (en) * | 2014-05-19 | 2016-01-20 | 青岛天源伟业保温防水工程有限公司 | The pliable and tough composite water-proof leak stopping emulsion in a kind of metope roof |
| CN103980749A (en) * | 2014-05-24 | 2014-08-13 | 欧美龙（南通）重防腐涂料有限公司 | Waterproof coating |
| CN105236883A (en) * | 2015-09-07 | 2016-01-13 | 安徽朗凯奇建材有限公司 | Polymer cement waterproofing slurry |
| CN105236885B (en) * | 2015-09-16 | 2018-03-13 | 岳阳东方雨虹防水技术有限责任公司 | A kind of easily painting type flexible water slurry and preparation method |
| CN106609066A (en) * | 2015-10-26 | 2017-05-03 | 天津市新丽华色材有限责任公司 | Waterproof coating |
| CN106630838B (en) * | 2016-12-22 | 2019-02-12 | 广东久巴新材料科技有限公司 | A kind of building decoration engineering water-repellent paint |
| CN106810163B (en) * | 2017-01-25 | 2018-12-28 | 北京国道通公路设计研究院股份有限公司 | A kind of cement-base infiltration crystallization material and its application in cement concrete bridge deck water-proof tack coat |
| CN106966656B (en) * | 2017-04-01 | 2021-09-17 | 中国人民解放军空军工程大学 | VAE emulsion cement-based pavement joint filling material and preparation method thereof |
| CN107129225B (en) * | 2017-04-14 | 2019-07-02 | 河南工业大学 | A kind of dedicated cement base energy-saving exterior wall coating of external wall and preparation method |
| CN108947452A (en) * | 2017-05-22 | 2018-12-07 | 四会市中日化工实业有限公司 | A kind of novel concrete coating |
| CN107117910A (en) * | 2017-07-05 | 2017-09-01 | 合肥片美环保科技有限公司 | Waterproof material for building and preparation method thereof |
| CN108385999A (en) * | 2018-02-10 | 2018-08-10 | 苏州金螳螂建筑装饰股份有限公司 | A kind of leakage of non-damage type is prevented and restorative procedure |
| CN109111902A (en) * | 2018-08-09 | 2019-01-01 | 李志平 | A kind of oil well second interface reinforcing agent and preparation method thereof |
| CN109111167B (en) * | 2018-08-10 | 2020-11-24 | 安徽朗凯奇建材有限公司 | Stretch-proofing cement-based capillary crystalline waterproof material |
| CN113024194A (en) * | 2021-03-10 | 2021-06-25 | 贺蕾 | Novel permeable crystallization type waterproof material for engineering and preparation method thereof |
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| CN101531497A (en) * | 2009-04-13 | 2009-09-16 | 天津城市建设学院 | Crack-resistant waterproof cement-based permeable composite repairing material and method for preparing same |
| CN101560084A (en) * | 2009-06-02 | 2009-10-21 | 河北科技大学 | Environmental-friendly waterproof polymer mortar |
| CN101704648A (en) * | 2009-11-02 | 2010-05-12 | 安徽省建筑科学研究设计院 | Organic-inorganic composite water repellent for light heat insulation blocks |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11116317A (en) * | 1997-10-20 | 1999-04-27 | Nippon Buren Partner:Kk | Acid-resistant composite cement composition |
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| CN101531497A (en) * | 2009-04-13 | 2009-09-16 | 天津城市建设学院 | Crack-resistant waterproof cement-based permeable composite repairing material and method for preparing same |
| CN101560084A (en) * | 2009-06-02 | 2009-10-21 | 河北科技大学 | Environmental-friendly waterproof polymer mortar |
| CN101704648A (en) * | 2009-11-02 | 2010-05-12 | 安徽省建筑科学研究设计院 | Organic-inorganic composite water repellent for light heat insulation blocks |
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Effective date of registration: 20151104 Address after: 212444 Zhenjiang city of Jiangsu province Jurong City White Town Day Road No. 77 Applicant after: Zhou Jianping Address before: 212402 Jurong Lianzhong science and Technology Development Co., Ltd., Jiangsu, Zhenjiang Province, Jurong 122 Applicant before: JURONG LIANZHONG SCIENCE & TECHNOLOGY DEVELOPMENT CO.,LTD. |
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Effective date of registration: 20191202 Address after: 410000 No.68, Yutang Road East, Jinyu industrial concentration zone, HuiLongPu Town, Ningxiang City, Changsha City, Hunan Province Patentee after: Changsha Shenyu Building Materials Co.,Ltd. Address before: 212444, No. 77, Tian AI Bei Road, Hou Bai Town, Zhenjiang, Jiangsu, Jurong Patentee before: Zhou Jianping |
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