Abstract
ABSTRACTEffective particle dispersion is believed to play a significant role in hydration reactivity of slag/cement blends and consequently on the development of physical and mechanical properties of the hardened pastes. The effects of various factors (superplasticizer and mixing time) on the particle dispersion were evaluated using a computer controlled scanning electron microscope. Backscattered electron signals and elemental maps were resolved for polished mounts of slag and cement particle mixtures. The adequacy of dispersion of slag and cement particles was determined by analyzing about 1000 particles per analysis with appropriate calculations and statistical treatment. These results were related to the hydration behavior of the slag/cement blends. The results obtained can be used to evaluate some of the physical phenomena and the kinetics of slag-cement hydration.
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