HIGH FLY-ASH CONCRETES

被引:0
作者
HAQUE, MN [1 ]
LANGAN, BW [1 ]
WARD, MA [1 ]
机构
[1] UNIV CALGARY,DEPT CIVIL ENGN,CALGARY T2N 1N4,ALBERTA,CANADA
来源
JOURNAL OF THE AMERICAN CONCRETE INSTITUTE | 1984年 / 81卷 / 01期
关键词
PAVEMENTS; -; Concrete;
D O I
暂无
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Concretes containing fly ash up to 75 percent by weight of the cementitious material have properties that make them attractive as a subbase or base course component in pavement construction. This paper describes an extensive laboratory study of air-entrained high fly ash concrete mixes (air entrained and non-air entrained) of medium to low workability suitable for placement by slipforming and roller compaction, respectively. The concretes were characterized as to their compressive, indirect tension, and flexural strengths; drying shrinkage; and freeze-thaw durability. It is confirmed that cohesive nonsegregating concretes can be manufactured containing 40 to 75 percent fly ash in the cementitious fraction.
引用
收藏
页码:54 / 60
页数:7
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