Journal of Materials and Engineering Structures
Volume 3, Numéro 2, Pages 35-57
2016-06-30
Reviewing The Carbonation Resistance Of Concrete
Authors : Singh N. . Singh S.p. .
Abstract
The paper reviews the studies on one of the important durability properties of concrete i.e. Carbonation. One of the main causes of deterioration of concrete is carbonation, which occurs when carbon dioxide (CO2) penetrates the concrete’s porous system to create an environment with lower pH around the reinforcement in which corrosion can proceed. Carbonation is a major cause of degradation of concrete structures leading to expensive maintenance and conservation operations. Herein, the importance, process and effect of various parameters such as water/cement ratio, water/binder ratio, curing conditions, concrete cover, super plasticizers, type of aggregates, grade of concrete, porosity, contaminants, compaction, gas permeability, supplementary cementitious materials (SCMs)/ admixtures on the carbonation of concrete has been reviewed. Various methods for estimating the carbonation depth are also reported briefly
Keywords
Carbonation; Normally vibrated concrete; Recycled aggregate concrete; Self compacting concrete
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