CN105314913B - It is a kind of to solve the problems, such as the preparation method that polycarboxylate water-reducer isolates bleeding conditioning agent - Google Patents
It is a kind of to solve the problems, such as the preparation method that polycarboxylate water-reducer isolates bleeding conditioning agent Download PDFInfo
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- CN105314913B CN105314913B CN201510721941.9A CN201510721941A CN105314913B CN 105314913 B CN105314913 B CN 105314913B CN 201510721941 A CN201510721941 A CN 201510721941A CN 105314913 B CN105314913 B CN 105314913B
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- conditioning agent
- reducer
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Abstract
A kind of to solve the problems, such as the preparation method that polycarboxylate water-reducer isolates bleeding conditioning agent, the conditioning agent is made up of the component of following mass percent：20% 35% Pluronic polyols, 3% 8% neopelex, 5% 20% molasses and 0.1% 4% sodium gluconate.Advantage is：The compatibility of conditioning agent of the present invention and polycarboxylic acids mother liquor is good, and not bleed, does not result in the reduction of concrete strength；Conditioning agent of the present invention can effectively solve the problems, such as that polycarboxylate water-reducer concrete batching isolates bleeding, significantly improve the workability of concrete, while improving the slump retaining of concrete, concrete slump does not lose in a long time；Preparation method is simple, and raw material sources enrich, and nontoxic pollution-free is environmentally friendly；Application method is simple, and cost is low, excellent performance, suitable for promoting.
Description
Technical field
Polycarboxylate water-reducer isolation bleeding regulation is solved the problems, such as the present invention relates to building material field, more particularly to one kind
Agent.
Background technology
With the continuous propulsion of China's urbanization, Building technology is quickly grown, and requirement of the construction industry to concrete technology is got over
Come higher, traditional naphthalene system, aliphatic water reducing agent can not meet the technical requirements of modern concrete.The efficient diminishing of polycarboxylic acids
Agent is so that its volume is low, water-reducing rate is high, little loss of slump, advantage turns into additional with the cement phase same sex is good, Product Green is environmentally friendly etc.
The trend of agent development.But polycarboxylate water-reducer itself water-reducing rate is high, very sensitive to water, easily there is isolation excreting water phenomenon, in pump
Pump is easily blocked up when sending, is made troubles to construction, and the concrete homogeneity poured is poor, strength development is uneven, influences concreter
The safe mass and service life of journey.
At present, the common practice solved the above problems is exactly to fill appropriate thickener to reduce polycarboxylate water-reducer sensitivity
Property bring isolation bleeding produced by a series of problems.But most of thickener, such as polyacrylamide, cellulose ether,
Polyvinyl alcohol etc. has inconsistent problem with polycarboxylate water-reducer, while above-mentioned thickener has air-entraining function, also results in
The reduction of concrete strength.Therefore, research and development are a kind of is exclusively used in solving the problems, such as that polycarboxylate water-reducer isolates the conditioning agent of bleeding very
It is necessary, with significant economical, societal benefits.
The content of the invention
To avoid the deficiencies in the prior art, the present invention provides one kind and solves the problems, such as polycarboxylate water-reducer isolation bleeding regulation
Agent.
The technical scheme is that：It is a kind of to solve the problems, such as the preparation method that polycarboxylate water-reducer isolates bleeding conditioning agent,
The conditioning agent is made up of the component of following mass percent：20%-35% Pluronic polyols, 3%-8% detergent alkylate
Sodium sulfonate, 5%-20% molasses and 0.1%-4% sodium gluconate, surplus is water.
Comprise the following steps：
1）By mass percentage, it is 3%-8% neopelex and 0.1%-4% sodium gluconate powder is molten
In excess water, mix；
2）5%-20% molasses are added 1）Solution, stir evenly, add 20%-35% Pluronic polyols, mix system
Obtain conditioning agent.
The Pluronic polyols is composited by two kinds or three kinds of polyalcohols materials.
The molasses are the byproduct in sugar production process.
It is a kind of to solve the problems, such as the application method that polycarboxylate water-reducer isolates bleeding conditioning agent, by 10%-20% polycarboxylic acids mother
Liquid, 2%-5% conditioning agent and excess water are well mixed, are made into polycarboxylate water-reducer use.
Polycarboxylic acids mother liquor solid content is 40%.
The beneficial effects of the invention are as follows：The compatibility of conditioning agent of the present invention and polycarboxylic acids mother liquor is good, and not bleed, Bu Huizao
Into the reduction of concrete strength.
Conditioning agent of the present invention can effectively solve the problems, such as that polycarboxylate water-reducer concrete batching isolates bleeding, significantly improve coagulation
The workability of soil, while improving the slump retaining of concrete, concrete slump does not lose in a long time.
Conditioning agent preparation method of the present invention is simple, and raw material sources enrich, and nontoxic pollution-free is environmentally friendly.
Conditioning agent application method of the present invention is simple, and cost is low, excellent performance, suitable for promoting.
Embodiment
The present invention is described further below；
A kind of to solve the problems, such as the preparation method that polycarboxylate water-reducer isolates bleeding conditioning agent, the conditioning agent is by following quality
The component of percentage is made：20%-35% Pluronic polyols, 3%-8% neopelex, 5%-20% molasses
With 0.1%-4% sodium gluconate, surplus is water.
Comprise the following steps：
1）By mass percentage, it is 3%-8% neopelex and 0.1%-4% sodium gluconate powder is molten
In excess water, mix；
2）5%-20% molasses are added 1）Solution, stir evenly, add 20%-35% Pluronic polyols, mix system
Obtain conditioning agent.
The Pluronic polyols is composited by two kinds or three kinds of polyalcohols materials.
The molasses are the byproduct in sugar production process.
It is a kind of to solve the problems, such as the application method that polycarboxylate water-reducer isolates bleeding conditioning agent, by 10%-20% polycarboxylic acids mother
Liquid, 2%-5% conditioning agent and excess water are well mixed, are made into polycarboxylate water-reducer use.
Polycarboxylic acids mother liquor solid content is 40%.
Embodiment 1：
1）By mass percentage, 7% neopelex and 4% sodium gluconate powder are dissolved in 52% water, mixed
It is even；
2）7% molasses are added 1）Solution, stir evenly, add 30% Pluronic polyols, mix and conditioning agent is made.
3）By 16% polycarboxylic acids mother liquor（Solid content is 40%）It is added in 82% water, is uniformly mixed so as to obtain poly- with 2% above-mentioned conditioning agent
Carboxylic acid water reducer.
Embodiment 2：
1）By mass percentage, 6% neopelex and 4% sodium gluconate powder are dissolved in 50% water, mixed
It is even；
2）12% molasses are added 1）Solution, stir evenly, add 28% Pluronic polyols, mix and conditioning agent is made.
3）By 16% polycarboxylic acids mother liquor（Solid content is 40%）It is added in 81% water, is uniformly mixed so as to obtain poly- with 3% above-mentioned conditioning agent
Carboxylic acid water reducer.
Embodiment 3：
1）By mass percentage, 5% neopelex and 3% sodium gluconate powder are dissolved in 52% water, mixed
It is even；
2）10% molasses are added 1）Solution, stir evenly, add 30% Pluronic polyols, mix and conditioning agent is made.
3）By 18% polycarboxylic acids mother liquor（Solid content is 40%）It is added in 78% water, is uniformly mixed so as to obtain poly- with 4% above-mentioned conditioning agent
Carboxylic acid water reducer, right and mixed concrete directly fills use.
The polycarboxylate water-reducer that 1-3 of the embodiment of the present invention is obtained is used for concrete, and this experiment strength grade of concrete is
C30, gel material content is 380kg/m3, wherein cement 230kg/m3, miberal powder 70kg/m3, flyash 80kg/m3, sand coarse aggregate ratio 48%,
The ratio of mud 0.45, with reference to GB8076-2008《Concrete admixture》Performance and Mechanics Performance Testing are operated, it the results are shown in Table 1.
The embodiment test data of table 1
Find out from test data, only embodiment 1 bleeding occurs in 60min bleeding processs of the test, and bleeding rate is only
0.1%, it is very low.Therefore embodiment 1-3 concrete mix is anti-isolates bleeding excellent performance, and the 60min of mixture collapses
Degree also hardly loses, and mixture is in good condition, is easy to construction, and be conducive to 7d the and 28d ages in the development of intensity, and table 1
The compression strength data of phase are coincide.
The technology contents described above that the present invention is only further illustrated with embodiment, so that reader is easier to understand, but
Do not represent embodiments of the present invention and be only limitted to this, any technology done according to the present invention extends or recreated, by this
The protection of invention.
Claims (1)
1. a kind of solve the problems, such as the preparation method that polycarboxylate water-reducer isolates bleeding conditioning agent, it is characterised in that：The conditioning agent is
It is made up of the component of following mass percent：20%-35% Pluronic polyols, 3%-8% neopelex, 5%-
20% molasses and 0.1%-4% sodium gluconate, surplus is water；Comprise the following steps：1）By mass percentage, by 3%-8%
Neopelex and 0.1%-4% sodium gluconate powder be dissolved in excess water, mix；2）By 5%-20% sugar
Honey adds 1）Solution, stir evenly, add 20%-35% Pluronic polyols, mix and conditioning agent is made；The Pluronic polyols
It is to be composited by two kinds or three kinds of polyalcohols materials；The molasses are the byproduct in sugar production process；By 10%-
20% polycarboxylic acids mother liquor, 2%-5% conditioning agent and excess water is well mixed, is made into polycarboxylate water-reducer use；Polycarboxylic acids
Mother liquor solid content is 40%.
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| CN201510721941.9A CN105314913B (en) | 2015-10-30 | 2015-10-30 | It is a kind of to solve the problems, such as the preparation method that polycarboxylate water-reducer isolates bleeding conditioning agent |
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| CN201510721941.9A CN105314913B (en) | 2015-10-30 | 2015-10-30 | It is a kind of to solve the problems, such as the preparation method that polycarboxylate water-reducer isolates bleeding conditioning agent |
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| CN105314913A CN105314913A (en) | 2016-02-10 |
| CN105314913B true CN105314913B (en) | 2017-08-25 |
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| CN109265694B (en) * | 2016-06-28 | 2020-10-09 | 苏州弗克技术股份有限公司 | Synthetic method of regulator for polyether type polycarboxylate superplasticizer |
| CN115594437A (en) * | 2022-09-30 | 2023-01-13 | 琼海鑫海混凝土有限公司（Cn） | Anti-segregation agent for concrete and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603225A (en) * | 2012-03-14 | 2012-07-25 | 内蒙古科技大学 | Concrete pumping antifreezing agent with adjustable performances |
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| CN101580354B (en) * | 2009-06-12 | 2012-10-24 | 福建科之杰新材料有限公司 | Polycarboxylic retarding high-performance water reducing agent for preparing concrete of middle and low strength grade |
| CN102515615B (en) * | 2011-12-29 | 2013-11-13 | 上海三瑞高分子材料有限公司 | Anti-freezing concrete water reducer |
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| CN102603225A (en) * | 2012-03-14 | 2012-07-25 | 内蒙古科技大学 | Concrete pumping antifreezing agent with adjustable performances |
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Effective date of registration: 20210420 Granted publication date: 20170825 |