摘要
碱激发材料在混凝土技术中的应用日益广泛,针对碱激发材料与混凝土收缩特性的关系进行了综合分析和总结.首先,介绍了碱激发材料的定义、分类和作用机理.然后,对混凝土收缩特性进行了概述,包括收缩的定义、分类和对混凝土性能的影响.通过综合分析已有的研究结果,探讨了碱激发材料对自由收缩、干缩、水化收缩和温度收缩的影响,并对影响因素进行了综述和讨论.最后,总结了碱激发材料与混凝土收缩相互作用的研究成果,并提出了未来研究的发展方向.
Abstract
Alkali-activated materials have been widely applied in concrete technology.This paper comprehensively analyzes and generalizes the relationship between alkali-activated materials and the shrinkage characteristics of concrete.Firstly,alkali-activated materials'definition,classification,and mechanism are introduced.Then,the shrinkage characteristics of concrete are summarized,including shrinkage's definition,classification and its influence on the performance of concrete.By comprehensively analyzing the existing research results,the effects of alkali-activated materials on free shrinkage,dry shrinkage,hydration shrinkage,and temperature shrinkage are discussed,and the influencing factors are reviewed and investigated.Finally,the research results of the interaction between alkali-activated materials and concrete shrinkage are summarized,and the development direction of future research is proposed.
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