机制砂和Ⅲ级粉煤灰配制低水泥用量C60高性能混凝土的试验和工程应用  

The experiment and engineering application of C60 high performance concrete with low cement content incorporated with machine-made sand and fly ash Ⅲ

作　　者：李章建 吕剑锋 李昕成 冷发光[2] 熊军 张毅科 

机构地区：[1]云南建工混凝土有限公司,云南昆明650051 [2]中国建筑科学研究院建筑材料研究所,北京100013

出　　处：《混凝土》2006年第12期74-77,共4页Concrete

基　　金：2004年度云南省省院省校科技合作计划项目(2004YX31)

摘　　要：针对C60大体积转换层的施工,在混凝土配比、水化放热等方面进行了试验研究,成功地配制出水泥用量为328kg/m3的机制砂C60高性能混凝土,并有效地控制了大体积高强混凝土的收缩变形和温度变形,解决了用机制砂、特细砂和Ⅲ级粉煤灰配制高性能混凝土以及减小高强混凝土的水化放热的问题。The engineering application of transfer floor of JinBiYangGuang project which is cast by yunnan construction engineering concrete company is introduced in the paper.The experimental study is done on the proportioning of concrete and hydrothermal dissipation based on the construction of this high volume transfer floor.The C60 high performance concrete which the cement content is 328kg/m^3 is prepared successfully. The shrinkage and temperature deformation of high strength mass concrete is also effective controlled.The hydrothermal dissipation of the high strength concrete is decreased and the high performance concrete utilizing machine-made sand and fly ash Ⅲ is also prepared successfully.

关 键 词：机制砂 特细砂 Ⅲ级粉煤灰 低水泥用量 C60高性能混凝土 大体积混凝土 

分 类 号：TU528.041[建筑科学—建筑技术科学]