CN1559972A - Super strong treatment agent for concrete interface - Google Patents
Super strong treatment agent for concrete interface Download PDFInfo
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- CN1559972A CN1559972A CNA2004100167383A CN200410016738A CN1559972A CN 1559972 A CN1559972 A CN 1559972A CN A2004100167383 A CNA2004100167383 A CN A2004100167383A CN 200410016738 A CN200410016738 A CN 200410016738A CN 1559972 A CN1559972 A CN 1559972A
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- cement
- concrete
- yellow ground
- treatment agent
- concrete interface
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Abstract
The invention relates to a concrete interface super treating agent, composed of cement, yellow sand, sulphoaluminate sweller, fibrin, and polyvinyl acetate latex powder. It can very efficiently pretreat the surface of filed cast concrete architecture before finishing, thus by a large margin, improving the cohesive strength between the follow-up and the concrete basal layer, and it has extremely good water resistance, high-temperature resistance and freeze-thaw resistance, and the dry shrinkage is less than 0.06%. It is applied to pretreatment of the surfaces of field cast concrete, clay brick, concrete brick, big precast concrete plate and silicate air entraining segment before constructing ornamental layers.
Description
Technical field
The invention belongs to building material technical field, be specifically related to the superpower treatment agent of a kind of concrete interface.
Background technology
At present, the application in body of wall strictly limits to traditional solid clay brick in government, and onsite concrete is better relatively owing to intensity height, dimensional stability, becomes buildings, especially the main flow of high-rise structure.Building body by laying bricks or stones with traditional clay brick compares, concrete surface hardness height, smooth, it is then very difficult further to carry out sand finish (also claiming to plaster) after concrete depositing is good, coat of plaster is not easy to apply, and the cohesive strength between coat of plaster and the concrete base laminar surface is very low, coat of plaster dry shrinkage in addition, very easy cracking even the coat of plaster of causing peels off.If directly at facing finishing material such as slick concrete surface sticking brick, marbles, because cohesive strength is low, only often be completed two, triennium just the finish coat peeling phenomenon may occur, not only influence facade, and cause very big threat to pedestrains safety.In order to improve the bonding strength of concrete surface and coat of plaster, generally take concrete surface is cut a hole in advance the practice of hair in the traditional technology, practice shows, because concrete strength generally up to C30, be cut a hole the hair construction to large-area building wall, not only consumes worker, consuming time, homogeneity is difficult to guarantee, and very big to the damage of concrete wall, the more important thing is that its effect is not very good yet.
Therefore, develop also actual production and can carry out pre-treatment, thereby the superpower interfacial agents that increases substantially cohesive strength between concrete surface and follow-up the plastering (ornament layer) is extremely important concrete surface.
Summary of the invention
The object of the present invention is to provide the superpower treatment agent of a kind of concrete interface.
The superpower treatment agent of concrete interface that the present invention proposes is made up of cement, yellow ground, aluminium sulfate expanding agent, Mierocrystalline cellulose and polyvinyl acetate (PVA) latex powder, and the weight ratio of each component is:
Cement 100
5-15 order yellow ground 65-108
20-40 order yellow ground 30-55
100-140 order yellow ground 40-84
Aluminium sulfate expanding agent 2-8
Mierocrystalline cellulose 0.10-0.64
Polyvinyl acetate (PVA) latex powder 0-5
The preferable weight ratio of each component is:
Cement 100
5-15 order yellow ground 78-103
20-40 order yellow ground 35-47
100-140 order yellow ground 49-78
Aluminium sulfate expanding agent 4-7
Mierocrystalline cellulose 0.12-0.60
Polyvinyl acetate (PVA) latex powder 0-4.1
Among the present invention, cement can adopt a kind of in silicate cement, ordinary Portland cement, slag cement, pulverized fuel ash cement, trass cement, Wingdale cement and the complex cement.
Preparation method of the present invention is: by aforementioned each part by weight weighing each component, mix by physical mechanical, promptly obtain this product.
Cement is as inorganic coagulation material, can with the reaction of mixing water water generationization, produce hydrated product, the sclerosis back produces intensity, and can and substrate concrete between produce snap-in force, form whole.The yellow ground of three kinds of grades is high-strength gathering materials, wherein thinner yellow ground is filled in the space that stays after the thickest yellow ground is piled up, and the thinnest yellow ground is filled in again in the space that stays after preceding two kinds of yellow ground are piled up, and forms solid skeleton, its space is further filled by slurry, forms whole.The purpose that aluminium sulfate expanding agent mixes is and can reacts with hydrated product in cement hydration process, produces the swelling property product of some amount, the dry caused contraction of compensation water mud.Mierocrystalline cellulose is as the water-keeping thickening component, its role is to can be in cement slurry swelling, produce the bridging effect, and the cement granules particle linked together by the molecular adsorption effect, avoid particles settling; When slurry flows, guarantee that slurry becomes integral body, can't produce excreting water phenomenon; Cellulosic effect is also to prevent that moisture is absorbed or excessive vaporization by concrete base layer in the slurry, thus play good in the maintenance effect, make product spread upon concrete surface after, and produce strong cohesive action between the concrete.The polyvinyl acetate (PVA) latex powder becomes emulsion after meeting water, can not only increase the stability of slurry, and in the slurry process of setting, the dry gradually dehydration of emulsion, the Vinyl Acetate Copolymer ester molecule interconnects, form one deck macromolecule membranous layer, strengthen the toughness and the shock resistance of this product, improve the cohesive strength of this product and concrete surface.
The present invention is a grey dry powder material, during use, adds water, and the pulp that stirs, suitable amount of water are the 15%-40% of dry powder material weight, and concrete amount of water is determined by test according to required denseness that slurry is reached and application property.
This invention product is widely used in the pre-treatment before onsite concrete, clay brick, concrete segment, the big plate of precast concrete and the construction of silicate aerated-block surface decoration layer.
In order to strengthen the cohesive strength of concrete surface and follow-up finish coat or plastering mortar, can adopt the superpower treatment agent of product-concrete interface of the present invention to spread upon concrete surface in advance, because this treatment agent has extraordinary water-retentivity and cohesive strength, and surface ratio own is more coarse after handling, can improve the cohesive strength between follow-up plastering mortar and finish coat etc. and the concrete greatly, and has well water-fast, high temperature resistant and freeze-thaw-cyclicity behind the treatment agent setting and harden, contract with dry rate is low, avoids producing cracking, hollowing in the use and flaking.
Products obtained therefrom of the present invention is easy to use, as long as stir and can construct according to recommending water consumption directly to add water at the scene.
Product of the present invention is widely used in coagulating cement cob wall floor surface is carried out pre-treatment before the facing, has replaced traditional cutter hair, cleaning, loaded down with trivial details operation such as wetting.
Starting material are easy to get in the products production of the present invention, and after tissue was produced, the rate of profit of bringing for manufacturer was about 25% of a price, and market outlook are good.
Embodiment
Embodiment 1, the superpower treatment agent of concrete interface is pressed ordinary Portland cement 32.93% (weight percent, down together), yellow ground (10 order) 27.66%, yellow ground (26 order) 11.86%, yellow ground (120 order) 25.01%, aluminium sulfate expanding agent 1.65%, Mierocrystalline cellulose 0.15%, polyvinyl acetate (PVA) latex powder 0.74% is formulated.The adhesive tensile resistance intensity of institute's formulated product is 3.2MPa, and pressing and cutting Joint strength is 4.1MPa, water-fast intensity 3.9MPa, heatproof intensity 3.9MPa, freeze-thawing resistant intensity 4.0MPa, shrinking percentage 0.04%.
Embodiment 2, and the superpower treatment agent of concrete interface is pressed slag cement 33.56%, yellow ground (10 order) 33.56%, yellow ground (30 order) 13.42%, yellow ground (110 order) 16.78%, aluminium sulfate expanding agent 2.01%, Mierocrystalline cellulose 0.17%, polyvinyl acetate (PVA) latex powder 0.50% is formulated.The adhesive tensile resistance intensity of institute's formulated product is 3.0MPa, and pressing and cutting Joint strength is 3.8MPa, water-fast intensity 3.7MPa, heatproof intensity 3.6MPa, freeze-thawing resistant intensity 3.7MPa, shrinking percentage 0.04%.
Claims (4)
1, the superpower treatment agent of a kind of concrete interface is characterized in that being made up of cement, yellow ground, aluminium sulfate expanding agent, Mierocrystalline cellulose, polyvinyl acetate (PVA) latex powder, and the weight ratio of each component is:
Cement 100
5-15 order yellow ground 65-108
20-40 order yellow ground 30-55
100-140 order yellow ground 40-84
Aluminium sulfate expanding agent 2-8
Mierocrystalline cellulose 0.10-0.64
Polyvinyl acetate (PVA) latex powder 0-5.
2, the superpower treatment agent of a kind of concrete interface according to claim 1 is characterized in that the each component weight ratio is:
Cement 100
5-15 order yellow ground 78-103
20-40 order yellow ground 35-47
100-140 order yellow ground 49-78
Aluminium sulfate expanding agent 4-7
Mierocrystalline cellulose 0.12-0.60
Polyvinyl acetate (PVA) latex powder 0-4.1.
3, the superpower treatment agent of a kind of concrete interface according to claim 1 is characterized in that cement is a kind of of silicate cement, ordinary Portland cement, slag cement, pulverized fuel ash cement, trass cement, Wingdale cement and complex cement.
4, the using method of the superpower treatment agent of a kind of concrete interface as claimed in claim 1 is characterized in that adding the water of this material weight 15%-40%, stirs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410016738 CN1285536C (en) | 2004-03-04 | 2004-03-04 | Super strong treatment agent for concrete interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410016738 CN1285536C (en) | 2004-03-04 | 2004-03-04 | Super strong treatment agent for concrete interface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1559972A true CN1559972A (en) | 2005-01-05 |
| CN1285536C CN1285536C (en) | 2006-11-22 |
Family
ID=34440623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410016738 Expired - Fee Related CN1285536C (en) | 2004-03-04 | 2004-03-04 | Super strong treatment agent for concrete interface |
Country Status (1)
| Country | Link |
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| CN (1) | CN1285536C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457413C (en) * | 2006-01-24 | 2009-02-04 | 浙江工业大学 | Concrete mortar interface processing method |
| CN104973834A (en) * | 2015-06-29 | 2015-10-14 | 湖州华仑助剂科技有限公司 | Mixed concrete |
| CN106746836A (en) * | 2017-01-10 | 2017-05-31 | 广西壮族自治区水利科学研究院 | A kind of bonding high corrosion-resistant type concrete interface treating agent and application |
| CN108798053A (en) * | 2018-05-31 | 2018-11-13 | 昆明理工大学 | A kind of method that ECC reinforces damaged frame Structure Beam-column node |
| CN110183151A (en) * | 2019-04-29 | 2019-08-30 | 贵州建工安顺建筑工程有限公司 | A kind of interfacial agents and its application |
| CN110294635A (en) * | 2019-07-05 | 2019-10-01 | 南通四建集团有限公司 | A kind of the whitewashing slurry and its shotcrete construction method of concrete base layer |
-
2004
- 2004-03-04 CN CN 200410016738 patent/CN1285536C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457413C (en) * | 2006-01-24 | 2009-02-04 | 浙江工业大学 | Concrete mortar interface processing method |
| CN104973834A (en) * | 2015-06-29 | 2015-10-14 | 湖州华仑助剂科技有限公司 | Mixed concrete |
| CN106746836A (en) * | 2017-01-10 | 2017-05-31 | 广西壮族自治区水利科学研究院 | A kind of bonding high corrosion-resistant type concrete interface treating agent and application |
| CN108798053A (en) * | 2018-05-31 | 2018-11-13 | 昆明理工大学 | A kind of method that ECC reinforces damaged frame Structure Beam-column node |
| CN110183151A (en) * | 2019-04-29 | 2019-08-30 | 贵州建工安顺建筑工程有限公司 | A kind of interfacial agents and its application |
| CN110294635A (en) * | 2019-07-05 | 2019-10-01 | 南通四建集团有限公司 | A kind of the whitewashing slurry and its shotcrete construction method of concrete base layer |
| CN110294635B (en) * | 2019-07-05 | 2022-05-24 | 南通四建集团有限公司 | Concrete base layer guniting slurry and guniting construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1285536C (en) | 2006-11-22 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061122 Termination date: 20120304 |