Carbonation Mechanism and Behavior of High Performance Concrete

Abstract

The mechanism and behavior of concrete carbonation have been researched in this study. Effects of cement quantity, water to binder ratio (w/b) and content of fly ash on carbonation reaction were investigated. Morphology, microhardness and carbonation depth were analyzed. Experimental results show that high quantity of cement, low w/b ratio and small addition of fly ash are beneficial to improve the anti-carbonation of concrete.