摘要
混凝土的收缩开裂是长期困扰工程界的一大技术难题,采用化学外加剂来减少混凝土收缩是提高混凝土抗裂性方便且经济有效的途径.本文针对工程混凝土收缩开裂突出的现状,首先简要介绍了收缩开裂的成因;在此基础上,从不同阶段、类型的收缩出发,综述了不同品种减缩抗裂外加剂的研究与应用进展,指出了当前应用过程中存在的技术难题以及需要进一步研究的方向,旨在为减缩抗裂外加剂的研究开发和应用提供参考.
Shrinkage cracking of concrete is a major technical problem that has long plagued the engineering.Reducing the shrinkage of concrete by chemical admixtures is a convenient and cost-effective way to improve the crack resistance of concrete.This article focused on the research and application status of chemical admixtures for shrinkage reducing and crack resistance of concrete.Firstly,the causes of shrinkage reducing and crack of concrete were briefly introduced.Then,the research and application progress of different types of chemical admixtures corresponding to different types of shrinkage were summarized,and the technical challenges and further research requirements were pointed out.It aims to provide reference for the research,development and application of chemical admixtures.
作者
李华
王育江
高南箫
李明
刘加平
LI Hua;WANG Yujiang;GAO Nanxiao;LI Ming;LIU Jiaping(School of Materials Science and Engineering,Southeast University,Nanjing 211189,China;State Key Laboratory of High Performance Civil Engineering Materials,Sobute New Materials Co.,Ltd.,Nanjing 211103,China)
出处
《建筑材料学报》
EI
CAS
CSCD
北大核心
2024年第12期1101-1111,共11页
Journal of Building Materials
基金
国家自然科学基金资助项目(52293432)
广西科技计划项目(桂科AB22036007)。
关键词
化学外加剂
减缩
抗裂
混凝土
chemical admixture
shrinkage reducing
crack resistance
concrete
