集料线膨胀对大体积混凝土温度应力的影响分析  

Analysis of the Influence of Linear Expansion of Aggregate on Mass Concrete Temperature Stress

作　　者：杜旭斌[1] 张宏[1] 雷蕾[1] DU Xu-bin;ZHANG Hong;LEI Lei(Yangling Vocational & Technical College,Yangling,Shaanxi 712100,China)

机构地区：[1]杨凌职业技术学院

出　　处：《杨凌职业技术学院学报》2019年第2期1-3,15,共4页Journal of Yangling Vocational & Technical College

基　　金：杨凌职业技术学院2018年度自然科学研究基金项目(A2018009)

摘　　要：温度裂缝是大体积混凝土普遍存在的问题,温度裂缝控制是大体积混凝土施工的一个重要环节。本文从混凝土材料入手,通过分析指出采用线膨胀系数小的集料可以减小混凝土的温度应力,并根据工程案例定性的分析了不同线膨胀系数集料对混凝土温度应力大小的影响关系,为大体积混凝土的温控提供另一种解决方案。Temperature crack is a common problem of mass concrete, so the temperature crack control is an important part in the process of mass concrete construction. Through analyzing the concrete materials, it is pointed out that using the aggregate with small linear expansion coefficient can reduce the temperature stress of concrete. According to the project case, the relationship between the aggregates of different linear expansion coefficient and temperature stress is qualitatively analyzed, and it provides another solution for temperature control of mass concrete.

关 键 词：集料 线膨胀系数 大体积混凝土 温控 

分 类 号：TU37[建筑科学—结构工程]