Enhancing corrosion resistance of reinforced concrete structures with hybrid fiber reinforced concrete

被引：97

作者：

Blunt, J. ^{[1
]}

Jen, G. ^{[1
]}

Ostertag, C. P. ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA

来源：

CORROSION SCIENCE | 2015年 / 92卷

关键词：

Steel reinforced concrete; Galvanostatic; Polarization; Weight loss; CHLORIDE-INDUCED CORROSION; ORDINARY PORTLAND-CEMENT; POLARIZATION RESISTANCE; STEEL REINFORCEMENT; CRACKED CONCRETE; PERFORMANCE; MACROCELL; MORTARS; INGRESS; RATES;

D O I：

10.1016/j.corsci.2014.12.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Service loads well below the yield strength of steel reinforcing bars lead to cracking of reinforced concrete. This paper investigates whether the crack resistance of Hybrid Fiber Reinforced Concrete (HyFRC) reduces the corrosion rate of steel reinforcing bars in concrete after cyclic flexural loading. The reinforcing bars were extracted to examine their surface for corrosion and compare microcell and macrocell corrosion mass loss estimates against direct gravimetric measurements. A delay in corrosion initiation and lower active corrosion rates were observed in the HyFRC beam specimens when compared to reinforced specimens containing plain concrete matrices cycled at the same flexural load. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：182 / 191

页数：10

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