高效缓凝减水剂与氧化镁膨胀剂对混凝土性能的影响

头部文案

发布时间：2020-01-06 00:00:00

全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊（光盘版）全文收录期刊

华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊



高效缓凝减水剂与氧化镁膨胀剂对混凝土性能的影响

Influence of high-efficiency retarding and water reducing agents and magnesium oxide expansion agents on the performance of concrete

2024年第4期

混凝土；补偿收缩；高效缓凝减水剂；膨胀剂；抗裂性能

Concrete; Compensated shrinkage; High-efficiency retarding and water reducing agent; Expansion agent; Crack resistance

2024年第4期

10.19761/j.1000-4637.2024.04.012.05

胡宇婷1，李伟1，吉飞1，张风臣2，郑春扬1

1.江苏奥莱特新材料股份有限公司，江苏南京 211500；2.河海大学，江苏南京 210098

胡宇婷1，李伟1，吉飞1，张风臣2，郑春扬1

胡宇婷,李伟,吉飞,等.高效缓凝减水剂与氧化镁膨胀剂对混凝土性能的影响[J].混凝土与水泥制品,2024(4):12-15,20.

HU Y T,LI W,JI F,et al.Influence of high-efficiency retarding and water reducing agents and magnesium oxide expansion agents on the performance of concrete[J].China Concrete and Cement Products,2024(4):12-15,20.

浏览量:

1000

摘要：研究了不同高效缓凝减水剂（柠檬酸、葡萄糖酸钠、柠檬酸镁、柠檬酸锂）分别与氧化镁膨胀剂的共同作用对混凝土工作性、力学性能、干燥收缩、抗裂性能的影响。结果表明：柠檬酸锂对掺氧化镁膨胀剂混凝土拌合物的坍落度有负面影响，但柠檬酸、葡萄糖酸钠、柠檬酸镁能在一定程度上改善混凝土的工作性；各高效缓凝减水剂均可提高混凝土的力学性能；葡萄糖酸钠、柠檬酸镁、柠檬酸锂均可减少混凝土的干燥收缩；柠檬酸、葡萄糖酸钠、柠檬酸镁均对氧化镁膨胀剂在混凝土中的补偿收缩作用有正向影响，其中，柠檬酸镁、葡萄糖酸钠的效果相对更好；柠檬酸对掺氧化镁膨胀剂的混凝土早期开裂性能有负面影响，会促进裂缝的产生。 Abstract: The effects of different high-efficiency retarding(citric acid, sodium gluconate, magnesium citrate and lithium citrate) and water reducing agent combined with magnesium oxide expansion agent on the workability, mechanical properties, drying shrinkage, and crack resistance of concrete were studied. The results show that lithium citrate has a negative impact on the slump of concrete with magnesium oxide expansion agents, but the citric acid, sodium gluconate, and magnesium citrate can improve the workability of concrete to a certain extent. All high-efficiency retarding and water reducing agents can improve the mechanical properties of concrete. Sodium gluconate, magnesium citrate, and lithium citrate can all reduce the drying shrinkage of concrete. Citric acid, sodium gluconate, and magnesium citrate all have a positive effect on the compensatory shrinkage of magnesium oxide expansion agents in concrete, among which magnesium citrate and sodium gluconate have relatively better effects. Citric acid has a negative impact on the early cracking performance of concrete mixed with magnesium oxide expansion agent, which can promote the generation of cracks.

英文名 : Influence of high-efficiency retarding and water reducing agents and magnesium oxide expansion agents on the performance of concrete

刊期 : 2024年第4期

关键词 : 混凝土；补偿收缩；高效缓凝减水剂；膨胀剂；抗裂性能

Key words : Concrete; Compensated shrinkage; High-efficiency retarding and water reducing agent; Expansion agent; Crack resistance

刊期 : 2024年第4期

DOI : 10.19761/j.1000-4637.2024.04.012.05

文章编号 :

基金项目 :

作者 : 胡宇婷1，李伟1，吉飞1，张风臣2，郑春扬1

单位 : 1.江苏奥莱特新材料股份有限公司，江苏南京 211500；2.河海大学，江苏南京 210098

胡宇婷1，李伟1，吉飞1，张风臣2，郑春扬1

胡宇婷,李伟,吉飞,等.高效缓凝减水剂与氧化镁膨胀剂对混凝土性能的影响[J].混凝土与水泥制品,2024(4):12-15,20.





摘要

参数

结论

参考文献

引用本文

Abstract: The effects of different high-efficiency retarding(citric acid, sodium gluconate, magnesium citrate and lithium citrate) and water reducing agent combined with magnesium oxide expansion agent on the workability, mechanical properties, drying shrinkage, and crack resistance of concrete were studied. The results show that lithium citrate has a negative impact on the slump of concrete with magnesium oxide expansion agents, but the citric acid, sodium gluconate, and magnesium citrate can improve the workability of concrete to a certain extent. All high-efficiency retarding and water reducing agents can improve the mechanical properties of concrete. Sodium gluconate, magnesium citrate, and lithium citrate can all reduce the drying shrinkage of concrete. Citric acid, sodium gluconate, and magnesium citrate all have a positive effect on the compensatory shrinkage of magnesium oxide expansion agents in concrete, among which magnesium citrate and sodium gluconate have relatively better effects. Citric acid has a negative impact on the early cracking performance of concrete mixed with magnesium oxide expansion agent, which can promote the generation of cracks.

关键词:

柠檬酸

the

magnesium

citrate

and

混凝土

gluconate

酸钠

扫二维码用手机看

[1] 曹丰泽,阎培渝.活性与养护温度对氧化镁膨胀剂膨胀性能的影响[J].硅酸盐学报,2017,45(8):1088-1095.
[2] 刘加平,王育江,田倩,等.轻烧氧化镁膨胀剂膨胀性能的温度敏感性及其机理分析[J].东南大学学报(自然科学版),2011,41(2):359-364.
[3] 曹丰泽,高玉亭,张慧杰,等.MgO膨胀剂在大体积混凝土结构中的抗裂效果研究[J].混凝土与水泥制品,2021(8):24-27.
[4] 徐菊.新型氧化镁膨胀剂对混凝土性能的影响研究[D].北京:北京建筑大学,2018.
[5] CHOI S,JANG B,KIM J,et al.Durability characteristics of fly ash concrete containing lightly-burnt MgO[J].Construction and Building Materials,2014,58:77-84.
[6] 李增强,王海龙,周月霞,等.温控材料对MgO膨胀剂性能影响及其作用机理分析[J].混凝土与水泥制品,2023(8):15-19.
[7] 叶其奎,于方,熊建波,等.氧化镁膨胀剂的应用现状研究进展[C]//全国先进混凝土技术及工程应用研讨会.第六届全国先进混凝土技术及工程应用研讨会论文集.广州:工业建筑杂志社,2018:33-41.
[8] 吴娇颖.低引气缓凝型聚羧酸减水剂的合成及性能研究[D].沈阳:沈阳建筑大学,2012.
[9] 胡延燕.关于缓凝剂葡萄糖酸钠若干问题的研究[D].西安:西安建筑科技大学,2006.
[10] 吴昊,查炎鹏,王靖,等.不同缓凝剂缓凝效果研究及机理分析[J].混凝土与水泥制品,2023(9):23-26.
[11] 雷红仙,黄萍.混凝土聚羧酸减水剂的种类及功能研究现状分析[J].公路交通科技,2019,15(8):55-58.
[12] 王振军,何廷树.缓凝剂作用机理及对水泥混凝土性能影响[J].公路,2006(7):149-154.
[13] 刘尊明,逄鲁峰.聚羧酸高效减水剂与缓凝剂的复配研究[J].混凝土,2009(12):52-53.
[14] 张莎莎.缓凝剂和早强剂对混凝土性能的影响试验研究[J].当代化工,2019,48(6):1235-1238.
[15] 郭学铭.外加剂中葡萄糖酸钠用量对水泥净浆和砂浆性能的影响研究[J].广东建材,2020,36(1):19-20.
[16] KHUDHAIR M H R,ELYOUBIM S,ELHARFI A.Study of the influence of water reducing and setting retarder admixtures of polycarboxylate "superplasticizers" on physical and mechanical properties of mortar and concrete[J].Journal of Materials and Environmental Science,2017,9:56-65.

[17] 吴永芳,单亚兰,张荣惠.混凝土高效减水剂的研究[J].混凝土与水泥制品,2012(5):24-27.
[18] KHUDHAIR M H,ELYOUBI M S,ELHARFI A.Data on effect of a reducer of water and retarder of setting time admixtures of cement pastes and mortar in hardened stat[J].Data in Brief,2018,18:454-462.
[19] 陈笑彭.混凝土早龄期收缩变形特性研究[D].武汉:长江科学院,2016.
[20] 刘柏军.建筑工程施工中混凝土裂缝的成因与治理[J].工程技术研究,2017(2):148,163.

上一个

氧化石墨烯-硅烷复合乳液对混凝土抗氯离子渗透性能的影响及机理分析

下一个

微纳米气泡水对砂浆力学、收缩性能的影响

头部文案

高效缓凝减水剂与氧化镁膨胀剂对混凝土性能的影响

相关文件