ABSTRACT

Abstract A laboratory investigation into the factors affecting the autogenous shrinkage of high strength silica fume concrete is presented. The parameters investigated were water/binder ratio and silica fume content. It was found that greater part of total shrinkage of the concrete is contributed by autogenous shrinkage particularly at a lower water/binder ratio and at higher silica fume content. The autogenous shrinkage was found to be a polynomial function of silica fume content. In addition, good polynomial correlation was obtained between autogenous shrinkage and porosity. Keywords: Autogenous shrinkage, silica fume, high strength concrete, drying shrinkage.