Fresh and mechanical properties of SCC with fly ash and copper slag as mineral admixtures

Abstract

Self Compacting Concrete is a unique concrete, which allows compaction itself without any vibration by its gravity. Workability is the crucial factor for Self Compacting Concrete (SCC). It is also termed as fresh properties while considering SCC. Fresh properties include flowing ability, filling ability, segregation resistance, and passing ability. These can be measured by Slump flow, U-Box, V-Funnel, and L-Box ratio tests. Fly ash is partially replaced with cement at 5%, 10%, 15%, 20%, 25%, and 30%. Copper slag as a mineral admixture substituted in fine aggregate at the levels of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100%. It was observed that the increase of fly ash and copper slag shows the improvement in the fresh properties. 20% fly ash used as optimum to replace copper slag in fine aggregate. 40% of copper slag has high mechanical properties than the regular mix.