Efficiency of silica fume in concrete

摘要: Abstract The use of silica fume as a mineral admixture for the production high strength performance concretes is gaining importance in recent years. present paper an effort towards better understanding efficiency concrete. It was observed from evaluation data available literature that SF concrete not constant at all percentages replacement. proposed “overall factor” can be assessed two separate parts, “general — I replacement and “percentage varying with percentage. A comparison efficiencies obtained earlier studies on “Lower Grade Silica Fume” laboratory show values are lower bound it possible to achieve even higher proper mix proportioning.