BEHAVIOR OF SELF COMPACTING CONCRETE SUBJECTED TO SULPHURIC ACID

Abstract

Self-Compacting Concrete mixes (SCC) is increasingly being used in many application some of which are susceptible to an Aggressive Environment such as sulfuric acid solution. In this study, SCC incorporating silica fume, chalk powder, and hybrid fibers were used in casting twelve specimens with a  dimension of (1000× 200× 100) mm, in three groups. The specimens in the first group were cured in a normal environment for 28 days, while those in the second and third groups were subjected to a sulfuric acid solution of 0.5% for six and ten months, respectively. The flexural tests of the specimens were evaluated by testing the specimens under two-concentrated point loading until failure. The experimental results show that after chemical exposure for ten months, using of chalk powder or hybrid fibers enhances the resistance to sulfuric solution.