Abstract
This works aims to study the effect of Silica Fume (SF) on the properties of High Alumina Cement (HAC), Ordinary Portland Cement (OPC) and the addition of 5, 10, 15 and 20%SF were prepared using Groundwater. The nature of the reactions was dependent on the amount of water (W/C=0.4) present in the paste. The grinded samples were characterised by using XRD analysis. The experimental results of the compressive strength and setting time were measured. The highest increase of compressive strength was achieved in the early period of setting which indicates an improvement in the early hydration of the mixture. The kinetics of hydration is well explained and evidenced that 10% addition of SF is optimum for this blend.
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