Exploring the role of accelerated carbonation curing on chloride-induced reinforcing steel corrosion in OPC and blended cement matrix

IF 6.7 2区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Journal of building engineering Pub Date : 2025-02-01 DOI:10.1016/j.jobe.2025.111965

Gebremicael Liyew , Sukhoon Pyo , Solmoi Park , Sang-Min Jeon , Hyo Kyoung Lee , Jeong Gook Jang , Hyeong-Ki Kim

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Abstract

This study explores the role of accelerated carbonation curing (ACC) in chloride penetration mechanisms and the initiation of steel corrosion in cement-based mixtures. Assessment of basic properties and pore network and chemical analyses were conducted. The chloride penetration resistance and corrosion potential of reinforcing steel in the specimens were evaluated with accelerated and static tests. The results were comprehensively analyzed to discuss the effect of ACC on the durability of ordinary Portland cement (OPC) and blended cement against chloride attack and steel corrosion. Results show that ACC significantly enhances OPC's chloride penetration resistance, as evidenced by reduced chloride migration coefficients and lower corrosion rates. In contrast, ACC does not substantially affect chloride resistance of blended cement. The impact of ACC on OPC was linked to reduced pore connectivity and changes in pore size distribution, while blended cements exhibit minimal pore connectivity alterations.

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来源期刊

Journal of building engineering Engineering-Civil and Structural Engineering

CiteScore

10.00

自引率

12.50%

发文量

1901

审稿时长

35 days

期刊介绍： The Journal of Building Engineering is an interdisciplinary journal that covers all aspects of science and technology concerned with the whole life cycle of the built environment; from the design phase through to construction, operation, performance, maintenance and its deterioration.