Paper Title:
Influencing Parameters Analysis of Chloride Threshold Value on Reinforcements Embedded in Concrete
  Abstract

The chloride threshold to develop active corrosion of the reinforcing steel does not seem to be a unique value and it depends on several factors, such as concrete mix proportions, cement type, C3A content of cement, blended materials, water/cement ratio, temperature, relative humidity, steel surface conditions and source of chloride penetration among others. Numerous studies have been already devoted to the study of the chloride threshold value for depassivation of the steel embedded in concrete. One of the reasons found for the scatter is the large number of variables that influence the chloride amount for depassivation. The other reason is the lack of accordance for the definition of the chloride threshold itself, either on the determining parameters (visual observation, corrosion potential or corrosion current) or on the expression of the threshold (as[Cl-]/[OH-] ratio or by weight of cement or concrete). The present paper presents chloride thresholds expressed as total, free and [Cl-]/[OH-] ratio.

  Info
Periodical
Advanced Materials Research (Volumes 250-253)
Edited by
Guangfan Li, Yong Huang and Chaohe Chen
Pages
202-206
DOI
10.4028/www.scientific.net/AMR.250-253.202
Citation
W. Q. Cao, X. M. Wan, T. J. Zhao, "Influencing Parameters Analysis of Chloride Threshold Value on Reinforcements Embedded in Concrete", Advanced Materials Research, Vols. 250-253, pp. 202-206, 2011
Online since
May 2011
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Price
$32.00
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