摘要
采用相同的胶凝材料及混凝土配合比参数,试验分析骨料品种对混凝土线膨胀系数和自生体积变形的影响,并探究其本质原因,期望有利于工程研究。结果表明:骨料含量相当时,骨料线膨胀系数越大,含有该骨料混凝土的线膨胀系数也越大;不同岩性的骨料对混凝土自生体积变形影响显著,起因于骨料长龄期吸水特性的不同,并可从定性和定量的角度验证此结论。
Using same cementitious materials and mix parameters,tests were carried out to analyze the effects of aggregate variety on concrete volume deformation and explore its essential causes.The results show as follows： when aggregate content was equivalent,the linear expansion coefficient of concrete increased with that of aggregate;the aggregate variety affected the autogenous volume deformation of concrete significantly as the result of different water absorption behavior of aggregate with long age.The paper verified the conclusion from the perspective of qualitative and quantitative.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2010年第6期16-19,共4页
Journal of Wuhan University of Technology
基金
国家自然科学基金(50539010)
关键词
骨料品种
混凝土
线膨胀系数
自生体积变形
吸水特征
aggregate variety
concrete
linear expansion coefficient
autogenous volume deformation
water absorption
