Effect of moisture and concrete composition on the Torrent permeability measurement

被引：58
作者：
Romer, M [1 ]
机构：
[1] Swiss Fed Labs Mat Testing & Res, Empa, Lab Concrete & Construct Chem, CH-8600 Dubendorf, Switzerland
来源：
MATERIALS AND STRUCTURES | 2005年 / 38卷 / 279期
关键词：
D O I：
10.1617/14321
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The change of the gas permeability of concrete with age and the effect of defined moisture conditions were investigated. Four different concrete mixtures were produced and stored in the laboratory at 35%, 70% and 90% RH. The air permeability of the covercrete was monitored with the Torrent method. Under controlled environmental conditions the Torrent method is sensitive to the concrete quality. However, when young concrete or moist concrete is tested adverse effects lead to unexpected results. The results of the non-destructive Torrent method are compared with data obtained with other methods and indicate significant influences of moisture under certain conditions. The effects of moisture on the results measured with the Torrent method and possibilities to improve the method for the application on real structures are discussed. 1359-5997 (c) 2005 RILEM. All rights reserved.
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页码：541 / 547
页数：7
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