WATER PERMEABILITY OF FLY-ASH CONCRETES

被引：28
|
作者：
HEDEGAARD, SE
HANSEN, TC
机构：
[1] Building Materials Laboratory, Technical University of Denmark, Lyngby, DK 2800
来源：
MATERIALS AND STRUCTURES | 1992年 / 25卷 / 151期
关键词：
D O I：
10.1007/BF02472253
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The water permeability of two series of concretes made with one type of fly ash and two types of Portland cement (OPC and SRPC) was tested by the method prescribed by DIN 1048. It is concluded that the cementing efficiency factor of the fly ash with respect to water permeability is approximately 0.3, independent of type of cement and curing time (28 days and 56 days). In practical terms this means that 1 kg of cement would have to be replaced by approximately 3 kg of fly ash in order to maintain the same watertightness of the hardened fly ash concretes. Thus, addition of fly ash is not likely to improve the watertightness of concrete.
引用
收藏
页码：381 / 387
页数：7
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