Journal
CEMENT & CONCRETE COMPOSITES
Volume 33, Issue 10, Pages 1071-1079Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cemconcomp.2011.08.002
Keywords
Chloride binding; External chloride; Persian Gulf; Silica fume
Funding
- Construction Materials Institute (CMI) at the University of Tehran
Ask authors/readers for more resources
Chloride binding has remarkable influence on the chloride penetration and hence, on the time to corrosion initiation in reinforced concrete structures. Previous studies have mainly looked at the chloride binding from internal sources in laboratory, which is not representative of practical situations. The current work focuses on the chloride binding characteristics of concrete samples exposed to an external source of chlorides from the sea water at Persian Gulf region. Some of the important parameters including w/c ratio, silica fume replacement and effect of chloride concentration on chloride binding were investigated in order to provide insight into the distribution of free and bound chloride ions after a long-term exposure. The results of the current study suggest that the chloride binding capacity increases with increasing the w/c ratio and chloride concentration but decreases by using silica fume. A general equation was also developed correlating the total and bound chloride in order to obtain more accurate service life prediction. (C) 2011 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available