An Experimental Study on the Utilization of High Performance Concrete for Structure in Nuclear Power Plant

This study is to develop high performance concrete for a dense reinforcement area, wall, and slab of 12in or less in Nuclear Power Plant.This study presents various experimental performances to enhance the durability of concrete structures in NPP by varying the ratio of W/B, fly ash substitution and super plasticizer addition.The effect of durability of concrete corresponding to the change of this variable was evaluated and the optimum W/B ratio and the optimum quantity of fly ash and super plasticizer for concrete structures in NPP were recommended.The results showed that W/B 35%, 20% of fly ash substitution and 2% of super plasticizer addition was found out to be an optimum quantity for a dense reinforcement area and W/B 45%, 20% of fly ash substitution and 3% of super plasticizer addition to be an optimum quantity for wall and slab structures in NPP.