On the effect of laboratory conditioning and freeze/thaw exposure on moisture profiles in HPC

被引：15

作者：

Geiker, MR

Laugesen, P

机构：

[1] Tech Univ Denmark, Dept Civil Engn, DK-2800 Lyngby, Denmark

[2] Dansk Beton Teknik AS, DK-2900 Hellerup, Denmark

来源：

CEMENT AND CONCRETE RESEARCH | 2001年 / 31卷 / 12期

关键词：

concrete; freezing and thawing; absorption; conditioning; moisture profiles;

D O I：

10.1016/S0008-8846(01)00643-3

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The effect of selected conditioning (drying and resaturation) and freeze/thaw exposure on the moisture profile in a two-powder concrete (equiv. w/c = 0.39, 8% silica fume) has been investigated. For comparison, the effect of conditioning and freeze/thaw testing according to SS 13 72 44 ("Boras method") on moisture profiles in a three-powder concrete and two plain concretes (w/c = 0.45) was measured. The investigations were supplemented by determination of frost resistance and chloride profiles after freeze/thaw exposure, as well as petrographic analysis. The investigations indicate that the present methods of conditioning only have very limited effect on high-performance concretes (HPC). (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1831 / 1836

页数：6

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