An Experimental Study on the Effect of Corrosion Protection by Tighting Concrete Used Fly-ash and Silica fume (Part1, In the case of Fresh Concrete and Hardened Concrete)

콘크리트 밀실화에 의한 염해대책 및 방청효과에 관한 실험적 연구 (제1보, 아직 굳지 않은 콘크리트의 성상 및 경화 콘크리트의 공학적 특성을 중심으로)

Lately, among concrete component used in construction works, the aggregate is the most important material because it hold about 70~80 Vo1% of most structural materials. Considering that the demand of aggregate is on the continuous increase in the construction works year after year, it is a very urgent thing to develop a substitute aggregate for river aggregate. This paper, an experimental study on the effect of corrosion protection by tighting concrete used fly-ash and silica fume, is to investigate workability and engineering properties of concrete used fly-ash and silica fume. As a test results, contrary to SF, workability of concrete used FA is inclined to be improved. And in the case of containing SF, the compressive strength containing admixtures is higher than plain concrete with increasing curing age.