郑州大学学报（工学版）2011，Vol.32Issue(1)：13-17,5.
机制砂陶粒混凝土抗拉性能试验研究
Experimental Study on Tensile Strength of Manufactured-sand Expanded-shale Concrete
摘要
Abstract
The experiments were conducted to study the effects of cement content,water to cement ratio and sand ratio on the tensile performances of lightweight concrete composited with manufactured sand and expanded shale. It is proved that the splitting tensile strength is mainly controlled by the capacity against splitting of expanded-shale itself,no rrgularity exists between splitting tensile strength and sand ratio. Increasing sand ratio can raise the axial tensile strength and the flexural tensile strength while cement content is lower,but there is no obvious influence when the cement content is larger. The splitting tensile strength and axial tensile strength decrease with the increase of water to cement ratio,but the flexural tensile strength does not change obviously.There are the optimum values of sand ratio and water to cement ratio resultin in the largest tensile elastic modulus of concrete. The mix proportion is suggested which satisfies the technical requirements of fresh concrete workability and LC35 lightweight concrete strength.关键词
轻骨料混凝土/机制砂/陶粒/试验研究/抗拉性能分类
建筑与水利引用本文复制引用
李长永,陈淮,赵顺波..机制砂陶粒混凝土抗拉性能试验研究[J].郑州大学学报（工学版）,2011,32(1):13-17,5.基金项目
河南省高校创新人才培养工程资助项目(豫教高[2004]294号) （豫教高[2004]294号）
郑州市科技领军人才培育计划资助项目(096SYJH23105) （096SYJH23105）
