Electrical resistivity of unsaturated concrete using different types of cement

被引：92

作者：

Medeiros-Junior, Ronaldo A. ^{[1
]}

Lima, Maryangela G. ^{[2
]}

机构：

[1] Fed Univ Parana UFPR, Ctr Politecn, Curitiba, Parana, Brazil

[2] Technol Inst Aeronaut ITA, Marechal Eduardo Gomes 50, Sao Jose Dos Campos, SP, Brazil

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 107卷

基金：

巴西圣保罗研究基金会;

关键词：

Electrical resistivity; Pore network; Addition; Cement; Concrete; PORTLAND-CEMENT; COMPRESSIVE STRENGTH; CHLORIDE PENETRATION; PASTES; DURABILITY; HYDRATION;

D O I：

10.1016/j.conbuildmat.2015.12.168

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper aims to contribute with durability studies by monitoring the unsaturated concrete resistivity over 2 years. Four types of cements commercially used in Brazil were investigated. Some statistical tests (ANOVA and Turkey's test) were performed to analyze the data. It was found that w/b ratios have no significant influence on the electrical resistivity values of the concrete for a same type of cement. However, the types of cement have a significant effect on resistivity. Cements with blast furnace slag and pozzolan additions have a higher resistivity. Trend lines to estimate the changes in resistivity over time were discovered. (c) 2015 Elsevier Ltd. All rights reserved.

引用

页码：11 / 16

页数：6

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