Chloride ingress and macro-cell corrosion of steel in concrete made with recycled brick aggregate

被引：4

作者：

Mohammed, Tarek Uddin ^{[1
]}

Rahman, Mahfuzur ^{[2
]}

Sabbir, Ahmed ^{[1
]}

Hasan, Mohammad Mehedi ^{[1
]}

Al Mamun, Abdullah ^{[3
]}

机构：

[1] Islamic Univ Technol, Dept Civil & Environm Engn, Gazipur 1704, Bangladesh

[2] Univ Informat Technol & Sci, Dept Civil Engn, Dhaka 1202, Bangladesh

[3] Bangladesh Rd Res Lab, Rd & Highways Dept, Dhaka 1216, Bangladesh

来源：

FRONTIERS OF STRUCTURAL AND CIVIL ENGINEERING | 2021年 / 15卷 / 06期

关键词：

brick aggregate; chloride ingress; macro-cell corrosion; recycled brick aggregate; BARS; REINFORCEMENT; PERFORMANCE; CRACK;

D O I：

10.1007/s11709-021-0769-x

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

An investigation on chloride ingress and macro-cell corrosion of steel bars in concrete made with recycled brick aggregate (RBA) was carried out. As control cases, virgin brick aggregate (BA) and stone aggregate (SA) were also investigated. Both cylindrical and cracked prism specimens were studied for 16 different cases. The prism specimens were made with a segmented steel bar providing electrical connection from outside of the specimens to measure macro-cell corrosion current continuously under seawater splash exposure for a period of 30 d using a data logger. Cylindrical specimens were submerged in 3% NaCl solution at a temperature of 40 degrees C to investigate chloride ingress in concrete made with RBA, BA, and SA after 120 and 180 d. Half-cell potential, corrosion area, and depths of corrosion were also investigated. The chloride ingress as well as corrosion of steel bars in concrete made with the different types of aggregate is ordered as RBA > BA > SA.

引用

页码：1358 / 1371

页数：14

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