An Experimental Study on the Chloride Penetration Resistance of Recycled Aggregate Concrete

被引：2

作者：

Ding, Jianjiang ^{[1
]}

Zheng, Jianjun ^{[2
]}

Lei, Ting ^{[3
]}

Kong, Deyu ^{[2
]}

机构：

[1] Zhejiang Commun Investment Grp Co Ltd, Hangzhou 310014, Zhejiang, Peoples R China

[2] Zhejiang Univ Technol, Sch Civil Engn & Architecture, Hangzhou, Zhejiang, Peoples R China

[3] Shanghai Shimao Investment Management Co Ltd, Shanghai 200120, Peoples R China

来源：

FRONTIERS OF GREEN BUILDING, MATERIALS AND CIVIL ENGINEERING, PTS 1-8 | 2011年 / 71-78卷

关键词：

Concrete; Recycled aggregate; Chloride penetration resistance; Mixing method; APPROXIMATE MIGRATION COEFFICIENT; INTERFACIAL TRANSITION ZONE; DIFFUSION-COEFFICIENT; MORTAR;

D O I：

10.4028/www.scientific.net/AMM.71-78.1255

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The degradation of reinforced concrete structures due to chloride penetration has a significant influence on structural durability. In this study, an experiment is conducted to investigate the effects of the aggregate type, mixing method, and admixture type on the chloride penetration resistance of concrete. Based on the experimental results, it is found that, since more pores and microcracks are included in recycled aggregates, the chloride penetration resistance of recycled aggregate concrete is larger than that of natural aggregate concrete. Slag is more efficient than fly ash in increasing the chloride penetration resistance of recycled aggregate concrete. It is also found that the mixing method has a significant influence on the chloride penetration resistance of recycled aggregate concrete. These conclusions can provide theoretical evidence for the design optimization of recycled aggregate concrete properties.

引用

页码：1255 / +

页数：2

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