Long-term chloride migration coefficient in slag cement-based concrete and resistivity as an alternative test method

被引：77
|
作者：
van Noort, R. [1 ,2 ]
Hunger, M. [1 ]
Spiesz, P. [1 ]
机构：
[1] HeidelbergCement Benelux, Appl Concrete Res, POB 1030, NL-3180 AA Rozenburg, Netherlands
[2] Inst Energy Technol, Dept Environm Technol, POB 40, NO-2027 Kjeller, Norway
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 115卷
关键词：
Concrete; Chloride; Diffusion; Migration; Resistivity; Ground granulated blastfurnace slag; HYDRATION PRODUCTS; BINDING; DIFFUSION; CORROSION; RESISTANCE; APPARENT; TIME;
D O I：
10.1016/j.conbuildmat.2016.04.054
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This article reports on investigations of the resistivity and chloride migration coefficient (D-RCM) obtained in the accelerated Rapid Chloride Migration test for slag cement-based concretes. Determinations of the resistivity and D-RCM were performed on 47 different concrete compositions, up to the age of 182 days. The obtained results demonstrate that, within the investigated age of concrete, factors such as cement fineness; slag origin, w/c ratio and cement and effective water contents clearly influence concrete resistivity and D-RCM values. Moreover, a linear trend is observed between D-RCM and conductivity. Based on this trend, resistivity determination is proposed as an alternative method for more laborious and time consuming chloride ingress test methods. (C) 2016 Published by Elsevier Ltd.
引用
收藏
页码：746 / 759
页数：14
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