Influence of Ground Granulated Blast Furnace Slag (GGBS) as Cement Replacement on the Properties of Sand Cement Brick

Abstract

Carbon dioxide (CO2) emissions from cement manufacturing contribute significantly to greenhouse gases. However,cement manufacture is necessary since a vast number of bricks are required to satisfy residential housing demand. Considering this crucial environmental impact, cement is encouraged to form futuristic civilizations.Cement replacement isideally a good propositionto produce green and sustainable sand cement brickto reduceCO2emissions.This study investigatesthe influence of Ground Granulated Blast Furnace Slag (GGBS)as a partial cement replacement of sand cement brick. Thepercentages replacement of GGBS are 0%, 10%, 20%, 30%, 40%, 50% and 60% by mass of the cement with mix design ratio of 1:3and 0.6 water cement ratio. All the bricks werecuring up to 90 days. The water absorption test and compressive strength of bricks were also carried out for its durability and mechanical properties. The experimental results indicate that the 20% of GGBS as replacement of cement in sand cement brick gives better performancethan conventional brick in terms of compressive strength and water absorption after curing of 56 days.