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

Tarek Uddin Mohammed; Mahfuzur Rahman; Ahmed Sabbir; Mohammad Mehedi Hasan; Abdullah Al Mamun

doi:10.1007/s11709-021-0769-x

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

Tarek Uddin Mohammed, Mahfuzur Rahman^*, Ahmed Sabbir, Mohammad Mehedi Hasan, Abdullah Al Mamun

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

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°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.

Original language	English
Pages (from-to)	1358-1371
Number of pages	14
Journal	Frontiers of Structural and Civil Engineering
Volume	15
Issue number	6
DOIs	https://doi.org/10.1007/s11709-021-0769-x
State	Published - Dec 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2021, Higher Education Press.

Keywords

brick aggregate
chloride ingress
macro-cell corrosion
recycled brick aggregate

ASJC Scopus subject areas

Civil and Structural Engineering
Architecture

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10.1007/s11709-021-0769-x

Cite this

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

abstract = "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°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.",

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doi = "10.1007/s11709-021-0769-x",

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AU - Mohammed, Tarek Uddin

AU - Rahman, Mahfuzur

AU - Sabbir, Ahmed

AU - Hasan, Mohammad Mehedi

AU - Mamun, Abdullah Al

PY - 2021/12

Y1 - 2021/12

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AB - 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°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.

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KW - chloride ingress

KW - macro-cell corrosion

KW - recycled brick aggregate

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IS - 6

ER -

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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