Influence of fly ash and ground granulated blast furnace slag on properties of concrete

Abstract

This work proposes an experimental program for characterizing the mechanical properties of concrete using fly ash (FA) and ground granulated blast furnace slag (GGBFS). The testing procedure bases on two experiments: compressive strength and temperature rise and was performed on three types of binder i) fly ash cement (PCFA) which was ordinary portland cement partially substituted with fly ash by 30%; ii) slag cement (PCBS) containing GGBFS at a replacement ratio of 65%, and iii) ternary blended cement (PCFABS) which was fly ash cement (PCFA) partially replaced with GGBFS at 55%. It has been shown that using a combination of fly ash and GGBFS in concrete can improve compressive strength and reduce the temperature as compared with other types of binder.