Experimental study on the carbonation of fly ash concrete

摘要

Based on fly ash concrete carbonation test, the impacts of water-binder ratio, fly ash proportion and pouring side to concrete carbonation depths was studied. With the help of the influence coefficient Ks of steel bar existence, the carbonation situations of concrete specimen with steel bar existence are analysed. The research results indicate that steel bar existence can inhibit concrete carbonation to a certain extent, the influence coefficient of steel bar existence and carbonation age conforms to logarithm relation.