Paper Title:
Corrosion Characteristics and Corrosion Current Distribution of Steel Bar in Carbonated Concrete
  Abstract

The corrosion characteristics of steel bar in concrete are decided by the corrosion current distribution along the circumference of the steel bar. It is a general assumption that carbonation lead to a general corrosion on the rebar. However, the destruction of a large number of specimens indicated that before corrosion cracking, the carbonation-induced corrosion mainly distributes on the surface of the steel bar facing the concrete cover. This paper examined the corrosion mechanism from fundamental electrochemical principles and experimental verification. It was illustrated that the macrocell corrosion must co-exist with microcell corrosion, both macrocell and microcell corrosion mechanisms could play significant roles, and the total corrosion could be underestimated if each of two is overlooked.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
3371-3376
DOI
10.4028/www.scientific.net/AMR.239-242.3371
Citation
Y. S. Ji, J. L. Shen, L. Wang, C. Y. Xu, "Corrosion Characteristics and Corrosion Current Distribution of Steel Bar in Carbonated Concrete", Advanced Materials Research, Vols. 239-242, pp. 3371-3376, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jing Xu, Wu Yao
Abstract:The galvanostatic pulse technique has been applied in detecting the efficiency of cathodic protection in reinforced concrete based on the...
584
Authors: Li Zhen Wang, Yan Juan Han, Kai Qing Zhang, Kun Wang
Abstract:The electrochemical behaviors of zinc electrode containing Bi, In and Al were tested to study aluminum acting on the electrochemical...
590
Authors: Xue Tao Yuan, Xu Dong Lv, Zhi Qiang Hua, Lei Wang, Tao Li
Chapter 4: Metallurgy Materials and Environmental Engineering
Abstract:Anodic polarization behavior of ternary alloy Pb-0.08%Ca-1%Sn is studied by potentiodynamic polarization measurements, corrosion rate, the...
349
Authors: Feng Jun Lang, Ying Ma, Jian Rong Liu, Xian Qiu Huang, Mou Cheng Li
Chapter 1: Surface Engineering/Coatings
Abstract:The influence of passivation on pitting corrosion of 316L stainless steel in concentrated seawater was investigated by using cyclic anodic...
127
Authors: Chun Li Wang, Qing Fen Li, Jian Hua Wu
Abstract:The galvanic corrosion behavior of titanium/ Cu-Ni Alloy / high strength steel in multiphase material system has been studied under open...
325