CN102898056A - Enhancement type water reducer capable of reducing slump loss - Google Patents
Enhancement type water reducer capable of reducing slump loss Download PDFInfo
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- CN102898056A CN102898056A CN2012103951387A CN201210395138A CN102898056A CN 102898056 A CN102898056 A CN 102898056A CN 2012103951387 A CN2012103951387 A CN 2012103951387A CN 201210395138 A CN201210395138 A CN 201210395138A CN 102898056 A CN102898056 A CN 102898056A
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- water reducer
- enhancement type
- slump loss
- type water
- concrete
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses an enhancement type water reducer capable of reducing slump loss. The water reducer is produced by the conventional method and consists of 50 to 80 percent of polycarboxylate superplasticizer, 20 to 40 percent of triethanolamine and 10 to 30 percent of ethylene glycol. When concrete is constructed at high temperature in summer and under the condition that the air humidity is less than 20 percent, the strength and the slumps can be effectively guaranteed.
Description
Technical field
The present invention relates to a kind of water reducer, particularly a kind of water reducer that reduces loss of slump is exactly the high efficiency water reducing agent that a kind of enhancement type reduces concrete slump loss specifically.
Technical background
Fast development along with China's infrastructure construction, also more and more personalized to the requirement of water reducer such as different segmentations fields such as worker China Democratic National Construction Association, bridge, mass concrete engineerings in the building trade, the concrete that in these segmented industries, uses, because concrete raw material differs greatly, in concrete production, conveying and construction process, in various degree have a faster problem of slump-loss, this causes very large trouble for quality control of concrete production and construction, simultaneously also in various degree reduction concrete intensity.
Polycarboxylate water-reducer has reasonable water-reducing effect, but when summer high temperature or atmospheric moisture are lower than 20% dry environment construction, it is good enough and increase the disadvantage of concrete pouring difficulty, surface local drying shrinkage crack performance the concrete water-retentivity to occur, suitably improving water cement ratio can address the above problem, but water cement ratio improves, concrete product intensity and the slump are maintained disadvantageous effect, and research and development enhancement type reduces the water reducer of slump-loss, to having addressed the above problem very important meaning.
Summary of the invention
Purpose of the present invention prepares the water reducer that a kind of enhancement type reduces loss of slump exactly, and to guarantee concrete product when summer high temperature or atmospheric moisture are lower than 20% dry environment construction, concrete strength and slump can effectively guarantee.
For achieving the above object, the present invention has taked such measure, a kind of enhancement type reduces the water reducer of slump-loss, produce according to a conventional method, it is comprised of 50-80% polycarboxylate water-reducer, 20-40% trolamine, 10-30% ethylene glycol, effectively guaranteed concrete product when summer high temperature or atmospheric moisture are lower than 20% dry environment construction, concrete strength and slump all obtain effective guarantee
The invention will be further described below by embodiment, but the invention is not restricted to these examples.
Embodiment one: with 500 kilograms of active effective constituent 50% polycarboxylate water-reducers, 300 kilograms of industrial trolamines, 200 kilograms of ethylene glycol, stir in cleaning vessel all and get final product.
Embodiment two: with 600 kilograms of active effective constituent 45% polycarboxylate water-reducers, 260 kilograms of industrial trolamines, 140 kilograms of ethylene glycol, stir in cleaning vessel all and get final product.
Embodiment three: the liquid polycarboxylate water-reducer that active effective constituent 95% powder polycarboxylic acids water reducing agent and pure water is mixed with poly carboxylic acid effective constituent 60%, with 550 kilograms of above-mentioned water reducers, 220 kilograms of industrial trolamines, 230 kilograms of ethylene glycol, in cleaning vessel, stir all and get final product.
Claims (4)
1. high efficiency water reducing agent that reduces concrete slump loss is to adopt ordinary method to produce, and it is characterized in that by following material proportioning by weight than making:
Polycarboxylate water-reducer 50-80%
Trolamine 20-40%
Ethylene glycol 10-30%.
2. high efficiency water reducing agent according to claim 1 is characterized in that polycarboxylate water-reducer effective constituent is the liquid of 40-60% or the powder of effective constituent 85-98%.
3. high efficiency water reducing agent according to claim 1 is characterized in that trolamine is commercially available industrial goods.
4. high efficiency water reducing agent according to claim 1 is characterized in that ethylene glycol is commercially available industrial goods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103951387A CN102898056A (en) | 2012-10-17 | 2012-10-17 | Enhancement type water reducer capable of reducing slump loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103951387A CN102898056A (en) | 2012-10-17 | 2012-10-17 | Enhancement type water reducer capable of reducing slump loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102898056A true CN102898056A (en) | 2013-01-30 |
Family
ID=47570583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103951387A Pending CN102898056A (en) | 2012-10-17 | 2012-10-17 | Enhancement type water reducer capable of reducing slump loss |
Country Status (1)
| Country | Link |
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| CN (1) | CN102898056A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289293A (en) * | 2008-06-13 | 2008-10-22 | 北京工业大学 | Polycarboxylic acids anti-freeze agent for cement concrete and method for preparing same |
| CN101289292A (en) * | 2008-06-13 | 2008-10-22 | 北京工业大学 | Early strength polycarboxylic acid high performance dehydragent and method for preparing same |
| CN101475338A (en) * | 2009-01-22 | 2009-07-08 | 中国建筑材料科学研究总院 | High-early strength type polycarboxylate compositional water reducing agent for unballasted track plate |
| CN101497507A (en) * | 2009-03-20 | 2009-08-05 | 武汉市联合石油化工有限责任公司 | High-early strength antifreezing polycarboxylate high performance water reducing agent and preparation |
| JP2010195622A (en) * | 2009-02-25 | 2010-09-09 | Denki Kagaku Kogyo Kk | Water reducing agent composition and mortar or concrete using the same |
-
2012
- 2012-10-17 CN CN2012103951387A patent/CN102898056A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289293A (en) * | 2008-06-13 | 2008-10-22 | 北京工业大学 | Polycarboxylic acids anti-freeze agent for cement concrete and method for preparing same |
| CN101289292A (en) * | 2008-06-13 | 2008-10-22 | 北京工业大学 | Early strength polycarboxylic acid high performance dehydragent and method for preparing same |
| CN101475338A (en) * | 2009-01-22 | 2009-07-08 | 中国建筑材料科学研究总院 | High-early strength type polycarboxylate compositional water reducing agent for unballasted track plate |
| JP2010195622A (en) * | 2009-02-25 | 2010-09-09 | Denki Kagaku Kogyo Kk | Water reducing agent composition and mortar or concrete using the same |
| CN101497507A (en) * | 2009-03-20 | 2009-08-05 | 武汉市联合石油化工有限责任公司 | High-early strength antifreezing polycarboxylate high performance water reducing agent and preparation |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130130 |