CN101549973B - Compound concrete high efficiency water reducing agent - Google Patents

Compound concrete high efficiency water reducing agent Download PDF

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Publication number
CN101549973B
CN101549973B CN2009100265232A CN200910026523A CN101549973B CN 101549973 B CN101549973 B CN 101549973B CN 2009100265232 A CN2009100265232 A CN 2009100265232A CN 200910026523 A CN200910026523 A CN 200910026523A CN 101549973 B CN101549973 B CN 101549973B
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CN
China
Prior art keywords
concrete
mixture
agent
water reducing
add
Prior art date
Application number
CN2009100265232A
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Chinese (zh)
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CN101549973A (en
Inventor
金卫民
陈红根
付强善
熊飞
张腊琴
高进军
Original Assignee
江苏尼高科技有限公司
常州市建筑科学研究院股份有限公司
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Application filed by 江苏尼高科技有限公司, 常州市建筑科学研究院股份有限公司 filed Critical 江苏尼高科技有限公司
Priority to CN2009100265232A priority Critical patent/CN101549973B/en
Publication of CN101549973A publication Critical patent/CN101549973A/en
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Publication of CN101549973B publication Critical patent/CN101549973B/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/20Retarders
    • C04B2103/22Set retarders
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302Water reducers
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/304Air-entrainers
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/44Thickening, gelling or viscosity increasing agents

Abstract

The invention relates to a compound concrete high efficiency water reducing agent which comprises water reducing mother liquid, a retarding and plasticity-maintaining agent, a viscosity regulator and an air entraining agent. The compound concrete high efficiency water reducing agent greatly enhances the adaptability of concrete admixture, improves the operability of the concrete, has good effect for controlling the loss of concrete slump, and improves the freeze-thaw resistance of the concrete.

Description

Compound concrete high efficiency water reducing agent
Technical field
The present invention relates to concrete admixture, belong to building material field, relate in particular to a kind of compound concrete high efficiency water reducing agent.
Background technology
In recent years, concrete technology is advanced by leaps and bounds, and wherein, most important technological breakthrough is the use of concrete admixture.Concrete admixture can be used to improve the fresh concrete workability, improve maturing physical and mechanical property and weather resistance.At present, the direction of concrete admixture development is high-performance, multi-functional compound additive, has only compoundization could tackle the cement component of complicacy day by day, the development of promotion new concrete and new construction technology.High efficiency water reducing agent is wherein most important one type of material.
The research of water-reduction mechanism shows, can reduce cement concrete water consumption (under the identical workability) through three kinds of effects, that is: dissemination, initial stage aquation restraining effect, bleed effect.
After concrete added the water stirring, system was unsettled, and wherein flocculation is agglomerating easily for the cement particle, and so a part of free-water is wrapped in the middle of the cement particle of flocculation.
Along with going deep into and environmental requirement of cement industry energy-saving and emission-reduction, the various waste adulterants in the concrete are day by day complicated, and current additive product often runs into some adaptability problems, presses for solution.
Summary of the invention
In order to overcome above-mentioned defective, the technical problem that the present invention will solve is: a kind of high performance compound concrete high efficiency water reducing agent is provided.
In order to overcome the defective that exists in the background technology; The technical solution adopted for the present invention to solve the technical problems is: a kind of compound concrete high efficiency water reducing agent; Said concrete high efficiency water reducing agent comprises: 70~90 weight % diminishing mother liquors; 1~6 weight % slow setting plasticity-retention agent, 0.1~1 weight % viscosity modifier, 0.1~2 weight % air entrapment agent; Surplus is a water; Wherein, described diminishing mother liquor is the two or more mixture of naphthalene sulfonic acidformaldehyde condensation product, aldehyde ketone sulfonation condenses, sulfamate formaldehyde condensation products, and described slow setting plasticity-retention agent is one or more a mixture of Hydrocerol A or Sunmorl N 60S, tripoly phosphate sodium STPP or Sodium hexametaphosphate 99; Described viscosity modifier is one or both a mixture of ether of cellulose, XG 550, and described air entrapment agent is one or both a mixture of the discarded hair-hydrolyzation thing of animal, X 2073.
The present invention also provides the method for preparing concrete high efficiency water reducing agent, at first, in reaction kettle, adds the diminishing mother liquor, and heated and stirred is warming up to 20 ℃~50 ℃; Then in solution, add the slow setting plasticity-retention agent, continue to stir; Then, in solution, add viscosity modifier and air entrapment agent stirring; At last; In solution, add entry; Stir the adjustment strength of solution, discharging, wherein; Described diminishing mother liquor is the two or more mixture of naphthalene sulfonic acidformaldehyde condensation product, aldehyde ketone sulfonation condenses, sulfamate formaldehyde condensation products; Described slow setting plasticity-retention agent is one or more a mixture of Hydrocerol A or Sunmorl N 60S, tripoly phosphate sodium STPP or Sodium hexametaphosphate 99, and described viscosity modifier is one or both a mixture of ether of cellulose, XG 550, and described air entrapment agent is one or both a mixture of the discarded hair-hydrolyzation thing of animal, X 2073.
The present invention has following effect with respect to prior art: after adding high efficiency water reducing agent; The negatively charged ion that the water reducer molecule becomes at dissociation in water is adsorbed on the concrete cement particle and has reduced its surface energy; And on the cement particle, form the adsorption layer of highfield; Destroy the cement aggregate, discharged this part water that is wrapped in and produce dissemination, and then improved concrete flowability; And different water reducers has different dissemination mechanism owing to having different molecular structures, uses the water reducer recombination energy of different structure to produce synergistic effect, further improves water-reducing effect.The present invention increases substantially the flexibility of concrete admixture, improves concrete operability, and the control concrete slump loss is had good effect, improves concrete antifreezing and melts performance.
Embodiment
Embodiment 1
Pressing column weight amount ratio gets the raw materials ready
At first add naphthalene sulfonic acidformaldehyde condensation product, aldehyde ketone sulfonation condenses, sulfamate formaldehyde condensation products, attemperation stirred ten minutes to 20-50 ℃; Add Hydrocerol A, tripoly phosphate sodium STPP, continue to stir 15 minutes, add animal discarded the hair-hydrolyzation thing aqueous solution, X 2073 and XG 550 at last; Stirred 30 minutes, leave standstill 1 hour after, add water and adjust concentration; Restir 15 minutes, discharging.
Embodiment 2
Get the raw materials ready by following mass ratio
At first add naphthalene sulfonic acidformaldehyde condensation product, aldehyde ketone sulfonation condenses, sulfamate formaldehyde condensation products, attemperation stirred ten minutes to 20-50 ℃; Add Sunmorl N 60S, Sodium hexametaphosphate 99, continue to stir 15 minutes, add animal discarded the hair-hydrolyzation thing aqueous solution, X 2073 and XG 550 at last; Stirred 30 minutes, leave standstill 1 hour after, add water and adjust concentration; Restir 15 minutes, discharging.
Embodiment 3
Get the raw materials ready by following mass ratio
At first add naphthalene sulfonic acidformaldehyde condensation product, aldehyde ketone sulfonation condenses, sulfamate formaldehyde condensation products, attemperation stirred ten minutes to 20-50 ℃; Add Hydrocerol A, tripoly phosphate sodium STPP, continue to stir 15 minutes, add animal discarded the hair-hydrolyzation thing aqueous solution, X 2073 and XG 550 at last; Stirred 30 minutes, leave standstill 1 hour after, add water and adjust concentration; Restir 15 minutes, discharging.
Through detecting, performance of products is following in the embodiment of the invention 1:
Table one: concrete mix and properties of hardened concrete
Annotate: volume 0.6% (the solid amount of folding) cement: reference cement.
Table two: ammonia content is measured
Numbering Project Standard value Measured value Conclusion
1 Ammonia content % ≤0.1 0.00903 Qualified
By above data presentation, adopt the present invention to increase substantially the flexibility of concrete admixture, improve concrete operability, the control concrete slump loss is had good effect, can improve concrete antifreezing in addition to a certain extent and melt performance.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification sheets, must confirm its technical scope according to the claim scope.

Claims (2)

1. compound concrete high efficiency water reducing agent; It is characterized in that: said concrete high efficiency water reducing agent comprises: 70~90 weight % diminishing mother liquors; 1~6 weight % slow setting plasticity-retention agent, 0.1~1 weight % viscosity modifier, 0.1~2 weight % air entrapment agent; Surplus is a water; Wherein, described diminishing mother liquor is the two or more mixture of naphthalene sulfonic acidformaldehyde condensation product, aldehyde ketone sulfonation condenses, sulfamate formaldehyde condensation products, and described slow setting plasticity-retention agent is one or more a mixture of Hydrocerol A or Sunmorl N 60S, tripoly phosphate sodium STPP or Sodium hexametaphosphate 99; Described viscosity modifier is one or both a mixture of ether of cellulose, XG 550, and described air entrapment agent is one or both a mixture of the discarded hair-hydrolyzation thing of animal, X 2073.
2. method for preparing concrete high efficiency water reducing agent as claimed in claim 1 is characterized in that: at first, in reaction kettle, add the diminishing mother liquor, heated and stirred is warming up to 20 ℃~50 ℃; Then in solution, add the slow setting plasticity-retention agent, continue to stir; Then, in solution, add viscosity modifier and air entrapment agent stirring; At last; In solution, add entry; Stir the adjustment strength of solution, discharging, wherein; Described diminishing mother liquor is the two or more mixture of naphthalene sulfonic acidformaldehyde condensation product, aldehyde ketone sulfonation condenses, sulfamate formaldehyde condensation products; Described slow setting plasticity-retention agent is one or more a mixture of Hydrocerol A or Sunmorl N 60S, tripoly phosphate sodium STPP or Sodium hexametaphosphate 99, and described viscosity modifier is one or both a mixture of ether of cellulose, XG 550, and described air entrapment agent is one or both a mixture of the discarded hair-hydrolyzation thing of animal, X 2073.
CN2009100265232A 2009-05-11 2009-05-11 Compound concrete high efficiency water reducing agent CN101549973B (en)

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CN101549973B true CN101549973B (en) 2012-04-18

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CN101786888B (en) * 2010-02-26 2012-07-04 长沙翰林化工科技有限公司 Multifunctional ceramic composite additive
CN102372461B (en) * 2010-08-24 2014-04-09 上海台界化工有限公司 Concrete additive
CN102372460A (en) * 2010-08-24 2012-03-14 上海台界化工有限公司 Concrete composite water reducer
CN102372467B (en) * 2010-08-24 2013-09-11 上海台界化工有限公司 Method for preparing low-strength concrete by using polycarboxylate superplasticizer
CN102372459B (en) * 2010-08-24 2014-06-25 上海台界化工有限公司 Method for enhancing workability of concrete
CN103359971B (en) * 2013-07-22 2015-03-04 中核混凝土股份有限公司 Nuclear-power concrete air-entraining polycarboxylic acid additive
CN103553417B (en) * 2013-09-30 2017-03-01 湖北三可建材科技股份有限公司 A kind of polycarboxylic acids diminishing complexing agent and its process units
CN103613313A (en) * 2013-11-08 2014-03-05 安徽省阜南绿原化工有限公司 Superplasticizer for bored secant pile of subway
CN103613315A (en) * 2013-11-08 2014-03-05 安徽省阜南绿原化工有限公司 Composite concrete water reducing agent
CN105037628A (en) * 2015-07-08 2015-11-11 广西科技大学 Retarding aliphatic superplasticizer synthesis method
CN105271888B (en) * 2015-09-25 2017-09-26 中国铁道科学研究院铁道建筑研究所 It is a kind of suitable for modified additive of low quality aggregate concrete and preparation method thereof
CN105347726B (en) * 2015-10-16 2018-06-26 同济大学 A kind of anti-corrosion high-thin arch dam polycarboxylate composite water reducing agent and preparation method and application
CN105384380A (en) * 2015-12-07 2016-03-09 安徽省阜南绿原化工有限公司 Tannin extract/polycarboxylate concrete water reducer and preparation method thereof
CN106277906A (en) * 2016-08-08 2017-01-04 安徽炎胜新材料科技有限公司 A kind of slow setting early strength concrete water reducer and preparation method thereof
CN106396466A (en) * 2016-08-29 2017-02-15 宿州兴隆建材有限公司 Concrete compound water reducing agent, and preparation method thereof
RU2019118408A3 (en) 2016-11-21 2021-04-09
CN109369062B (en) * 2018-11-16 2020-12-22 石家庄铁道大学 Thixotropic and self-curing material for slip-form construction concrete and preparation method thereof
CN110282902A (en) * 2019-06-21 2019-09-27 深圳市振惠通混凝土有限公司 A kind of environment-friendly type compounding naphthalene series high-efficiency water-reducing agent and preparation method thereof

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CN1289736A (en) * 1999-11-17 2001-04-04 武汉水利电力大学 Efficient water-reducing, slow-settling plasticizing agent of concrete
CN1887775A (en) * 2006-07-13 2007-01-03 内蒙古科技大学 Efficient retarding and water reducing agent for concrete

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
CN1289736A (en) * 1999-11-17 2001-04-04 武汉水利电力大学 Efficient water-reducing, slow-settling plasticizing agent of concrete
CN1887775A (en) * 2006-07-13 2007-01-03 内蒙古科技大学 Efficient retarding and water reducing agent for concrete

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Patentee after: Changzhou Institute of building science group Limited by Share Ltd

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