THE EFFECT OF CURING PERIOD ON THE DURABILITY OF CONCRETE USING BLAST-FURNACE SLAG BLENDED CEMENT

It is necessary for enwing the required performance of concrete structure, such as the strength and durability, by sufficient curing of concrete. Researchers focused mainly on only compressive strength, not durability. Besides, in most of their research, they used Ordinary Portland Cement (OPC), not blended cement. It is necessary to define the relationship between curing condition and concrete durability using OPC and blended cement. In this research, the effect on concrete durability of different curing conditions and periods of concrete using OPC and Blast-furnace slag cement type B(BB) were investigated. As a result, BB concrete durability is more sensitive to curing condition than OPC. However BB concrete has necessary for extended curing period of 2 days by OPC concrete for keeping enough durability. Moreover, curing is very important on the covering concrete using Blended cement.