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发布时间：2020-01-06 00:00:00
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不同释放时间保坍型聚羧酸高性能减水剂研究
Study on High Performance Slump Retention Type Polycarboxylate Superplasticizer with Different Release Time
2020年第11期
保坍型；聚羧酸减水剂；不同释放时间；混凝土
Slump-type; Superplasticizer; Different release time; Concrete
2020年第11期
10.19761/j.1000-4637.2020.11.020.06
国家重点研发计划项目（2018YFC1903602）。
王 倩1，王立彬1，任建波1，张露瑶1，张业明2，刘禹杉1，肖见祺1
1.唐山冀东水泥外加剂有限责任公司，河北 唐山 064000；2.北京金隅水泥节能科技有限公司 水泥混凝土节能利废技术北京市重点实验室，北京102403

王 倩1，王立彬1，任建波1，张露瑶1，张业明2，刘禹杉1，肖见祺1

摘   要：以丙烯酸羟乙酯、丙烯酸羟丙酯、封端酰胺磷酸酯和甲基丙烯基酒石酸单酯为功能单体，通过对这几种功能单体缓释特点进行分类，科学地设计了聚羧酸减水剂的分子结构，制备了三种不同释放时间的保坍型聚羧酸高性能减水剂（即早期释放型、中期释放型和中后期释放型）。采用凝胶色谱仪对三种保坍型减水剂进行了GPC分析，研究了其释放规律以及对不同特征水泥的适应性，并在混凝土实际工程中验证了设计方法的正确性。

Abstract: With hydroxyl ethyl acrylate, hydroxypropyl acrylate, terminated amide phosphate and methyl allyl tartaric acid monoester for modification monomer, through the analysis of the characteristics of the several kinds of modified monomer slow-release classification, the molecular structure of high performance polycarboxylate superplasticizer was scientifically designed. Three different release times of high performance slump retention type polycarboxylate superplasticizer(release early, release mid and later released type) were prepared. GPC analysis was carried out on three kinds of high performance slump retention type polycarboxylate superplasticizer by gel chromatography. Its release rules and adaptability to different characteristics of the cement were studied and applied in concrete engineering practice to verify the correctness of the design method.

王倩,王立彬,任建波,等.不同释放时间保坍型聚羧酸高性能减水剂研究[J].混凝土与水泥制品,2020(11):20-25.

WANG Q,WANG L B,REN J B,et al.Study on High Performance Slump Retention Type Polycarboxylate Superplasticizer with Different Release Time[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(11):20-25.

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摘   要：以丙烯酸羟乙酯、丙烯酸羟丙酯、封端酰胺磷酸酯和甲基丙烯基酒石酸单酯为功能单体，通过对这几种功能单体缓释特点进行分类，科学地设计了聚羧酸减水剂的分子结构，制备了三种不同释放时间的保坍型聚羧酸高性能减水剂（即早期释放型、中期释放型和中后期释放型）。采用凝胶色谱仪对三种保坍型减水剂进行了GPC分析，研究了其释放规律以及对不同特征水泥的适应性，并在混凝土实际工程中验证了设计方法的正确性。 Abstract: With hydroxyl ethyl acrylate, hydroxypropyl acrylate, terminated amide phosphate and methyl allyl tartaric acid monoester for modification monomer, through the analysis of the characteristics of the several kinds of modified monomer slow-release classification, the molecular structure of high performance polycarboxylate superplasticizer was scientifically designed. Three different release times of high performance slump retention type polycarboxylate superplasticizer(release early, release mid and later released type) were prepared. GPC analysis was carried out on three kinds of high performance slump retention type polycarboxylate superplasticizer by gel chromatography. Its release rules and adaptability to different characteristics of the cement were studied and applied in concrete engineering practice to verify the correctness of the design method.
英文名 : Study on High Performance Slump Retention Type Polycarboxylate Superplasticizer with Different Release Time
刊期 : 2020年第11期
关键词 : 保坍型；聚羧酸减水剂；不同释放时间；混凝土
Key words : Slump-type; Superplasticizer; Different release time; Concrete
刊期 : 2020年第11期
DOI : 10.19761/j.1000-4637.2020.11.020.06
文章编号 :
基金项目 : 国家重点研发计划项目（2018YFC1903602）。
作者 : 王 倩1，王立彬1，任建波1，张露瑶1，张业明2，刘禹杉1，肖见祺1
单位 : 1.唐山冀东水泥外加剂有限责任公司，河北 唐山 064000；2.北京金隅水泥节能科技有限公司 水泥混凝土节能利废技术北京市重点实验室，北京102403

王 倩1，王立彬1，任建波1，张露瑶1，张业明2，刘禹杉1，肖见祺1

摘   要：以丙烯酸羟乙酯、丙烯酸羟丙酯、封端酰胺磷酸酯和甲基丙烯基酒石酸单酯为功能单体，通过对这几种功能单体缓释特点进行分类，科学地设计了聚羧酸减水剂的分子结构，制备了三种不同释放时间的保坍型聚羧酸高性能减水剂（即早期释放型、中期释放型和中后期释放型）。采用凝胶色谱仪对三种保坍型减水剂进行了GPC分析，研究了其释放规律以及对不同特征水泥的适应性，并在混凝土实际工程中验证了设计方法的正确性。

Abstract: With hydroxyl ethyl acrylate, hydroxypropyl acrylate, terminated amide phosphate and methyl allyl tartaric acid monoester for modification monomer, through the analysis of the characteristics of the several kinds of modified monomer slow-release classification, the molecular structure of high performance polycarboxylate superplasticizer was scientifically designed. Three different release times of high performance slump retention type polycarboxylate superplasticizer(release early, release mid and later released type) were prepared. GPC analysis was carried out on three kinds of high performance slump retention type polycarboxylate superplasticizer by gel chromatography. Its release rules and adaptability to different characteristics of the cement were studied and applied in concrete engineering practice to verify the correctness of the design method.

王倩,王立彬,任建波,等.不同释放时间保坍型聚羧酸高性能减水剂研究[J].混凝土与水泥制品,2020(11):20-25.

WANG Q,WANG L B,REN J B,et al.Study on High Performance Slump Retention Type Polycarboxylate Superplasticizer with Different Release Time[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(11):20-25.

摘要
参数
结论
参考文献
引用本文

摘   要：以丙烯酸羟乙酯、丙烯酸羟丙酯、封端酰胺磷酸酯和甲基丙烯基酒石酸单酯为功能单体，通过对这几种功能单体缓释特点进行分类，科学地设计了聚羧酸减水剂的分子结构，制备了三种不同释放时间的保坍型聚羧酸高性能减水剂（即早期释放型、中期释放型和中后期释放型）。采用凝胶色谱仪对三种保坍型减水剂进行了GPC分析，研究了其释放规律以及对不同特征水泥的适应性，并在混凝土实际工程中验证了设计方法的正确性。

Abstract: With hydroxyl ethyl acrylate, hydroxypropyl acrylate, terminated amide phosphate and methyl allyl tartaric acid monoester for modification monomer, through the analysis of the characteristics of the several kinds of modified monomer slow-release classification, the molecular structure of high performance polycarboxylate superplasticizer was scientifically designed. Three different release times of high performance slump retention type polycarboxylate superplasticizer(release early, release mid and later released type) were prepared. GPC analysis was carried out on three kinds of high performance slump retention type polycarboxylate superplasticizer by gel chromatography. Its release rules and adaptability to different characteristics of the cement were studied and applied in concrete engineering practice to verify the correctness of the design method.

关键词:
羧酸
of
the
释放
release
and
superplasticizer
type
high
减水剂
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（1）通过改变酯基类型和比例可以设计不同释放速度的保坍性聚羧酸减水剂，单酯搭配少量丙烯酸羟乙酯可以合成早期释放型减水剂PCE1；丙烯酸羟乙酯搭配丙烯酸羟丙酯可以合成中期释放型减水剂PCE2；磷酸酯搭配丙烯酸羟丙酯可以合成中后期释放型减水剂PCE3。
（2）PCE1具有较高的减水率，其早期保坍能力较强，但后期保坍能力相对较弱，在混凝土体系早期流动度损失较快（水泥损失较大或砂含泥较高）的环境下，可以有效改善前期及中期保坍性能。
（3）PCE2的长期保坍能力不及PCE3，但早期释放能力强于PCE3，适用于返大型特征的水泥。
（4）PCE3减水率较低，其早期释放能力较弱，但具有优异的长期保坍性能，且释放均匀持久，主体释放区间位于1.5～2.5 h（或3 h），与PCE1复合使用，适用于平稳型特征的水泥。

[1] 王玲,赵霞,高瑞军．我国混凝土外加剂行业最新研发进展和市场动态[J]．混凝土与水泥制品,2018(7):l-5．
[2] 乔敏，冉千平．浅谈减水剂的市场前景与发展趋势[J]．新型建筑材料,2018(3):84-86．
[3] SIDNEY D．The patch microstructure in concrete:the effect of superplasticizer[J]．Coment and Concrete Research,2006,36(4):776-779．
[4] 常青山,付鹏,孙华强,等．高保坍型聚羧酸减水剂配制高强混凝土在济南万象城工程的应用[J]．新型建筑材料,2017(3):148-150．
[5] AITCIN P C,FLATT R J．Science and technolqgy of concrete admixtures[M]．Cambridge:Woodhead publishing,2015:219-278．
[6] 孙振平,吴乐林,胡匡艺,等．保坍型聚羧酸系减水剂的研究现状与作用机理[J]．混凝土,2019(6):51-54．
[7] PLANK J,WINTER C H.Competitive adsorption between superplasticizer and retarder molecules on mineral binder surface[J]．Cement and Concrete Research,2008,38(5):599-605．
[8] 陈亚萍,徐征宇,陈斐．缓释高保坍型聚羧酸减水剂的制备及其性能研究[J]．新型建筑材料,2015(9):8-11．
[9] 宋作宝,姚燕,李婷,等．缓释型聚羧酸减水剂的分子结构设计及制备[J]．建筑材料学报,2017(4):563-568．
[10] 叶嘉欣,陈胜利,钟永兴,等．聚羧酸系减水剂缓释技术研究进展[J]．广州建筑,2019(2):29-34．

王倩,王立彬,任建波,等.不同释放时间保坍型聚羧酸高性能减水剂研究[J].混凝土与水泥制品,2020(11):20-25.

WANG Q,WANG L B,REN J B,et al.Study on High Performance Slump Retention Type Polycarboxylate Superplasticizer with Different Release Time[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(11):20-25.

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