Critical chloride content in reinforced concrete — An updated review considering Chinese experience

By Yin Cao, C. Gehlen, U. Angst, Ling Wang, Zhendi Wang, Yan Yao. Cement and Concrete Research, 2019

218 citations recorded by the source corpus.

Abstract The critical chloride content (Ccrit) of reinforcement corrosion in concrete is of great importance for the condition assessment of existing structures and for the service life design of new structures in chloride exposure environments. Here, we review the extensive body of literature on Ccrit published in Chinese since the 1960s. In agreement with earlier reviews considering European and North American literature, we find that Ccrit scatters widely and cannot be predicted on the basis of parameters such as w/b ratio, binder type, steel surface condition, etc. It appears that the stress state of the reinforcing steel may play a more important role than generally assumed. On the basis of this review, complementing earlier reviews, we conclude that the state-of-the-art on Ccrit has advanced negligibly over the last decades. The time is now to change the way corrosion initiation in concrete is scientifically addressed. Recommendations for further work are made.

Subfields: Civil and Structural Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/9ef2247412c57af4e90502d479ab4e3eb8941bcf

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Citations in the corpus

The effect of the steel–concrete interface on chloride-induced corrosion initiation in concrete: a critical review by RILEM TC 262-SCI (2019, background): “Nevertheless, we consider Ccrit a suitable parameter for our review, mostly because of the broad acceptance of this concept to characterize “corrosion initiation” of steel in concrete [13, 14].”