Light Expanded Clay Aggregate and Fly Ash Aggregate as Self Curing Agents in Self Compacting Concrete

In the present study, light expanded clay aggregate (LECA) and fly ash aggregate (FAA) were used as self-curing agents in self-compacting concrete (SCC). FAA and LECA were used as an internal water reservoir. The coarse aggregate was replaced by 5% LECA and the fine aggregate was replaced by the various proportions of FAA from 0% to 50% by weight of fine aggregate. Test results showed that SCC mix with 40% FAA attained higher strength under conventional water curing. Besides, SCC mix with 30% FAA showed higher strength under self-curing. It is concluded that SCC with LECA and FAA could be successfully used as self curing agents where conventional curing is not effective.