Effect of ground –grunalated blast furnace slag on properties of fresh self-compacting high performance concrete

Abstract

This article presents the influence Ground-granulated blast-furnace slag (GGBFS) on properties of self-compacting high performance concrete (SCHPC). The cement contents were replaced by GGBFS in the range of 10-50% in SCHPC using 7% silica fume. The results of experimental research show that using GGBFS combined with silica fume can produce SCHPC with good self-compactability. Increasing GGBFS contents could reduce the superplasticizer saturation dosage of the fresh SCHPC while still ensuring the required high self-compactability. At W/B ratio = 0.26; using 30-40% GGBFS could prodcue SCHPC with the lowest plastic viscocity, and the greatest filling ability, passing ability and segregation resistance.