A Study of Silica‐Fume‐Modified Cements of Varied Fineness

Abstract

Pastes and mortars of portland cements with varying fineness were studied. The effect of blending the cements with silica fume up to 10% is presented. Thermogravimetry, heat of hydration, X‐ray diffraction, scanning electron microscopy, compressive strengths, and microhardness measurements were used to evaluate the pastes and mortars. The study reveals that properties and strengths of existing portland cements may be enhanced through the addition of silica fume. Coarse cements are benefited greatly through the blending. Energy savings during grinding may be realized through this process.