Effect of Substitution of Natural Gypsum with Synthetic Gypsum Produced from Cement Kiln Dust on the Physico-Chemical Properties of Ordinary Portland Cement
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Date
2009
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Abstract
This study was designed to investigate the effect of using synthetic gypsum on the properties of cement instead of the conventional natural gypsum being used by cement industries. Synthetic gypsum which was chemically produced from precipitation reaction between cement kiln dust and sulfuric acid was ground together with clinker at %(w/w) using laboratory-scale ball mill to produce ordinary Portland Cement. The chemical and physical properties of the cement were compared with similar cement produced with natural gypsum. The results showed lightly higher figures for most of the parameters and increased mechanical strength development over a 28-day period for cement with synthetic gypsum compared with that of natural gypsum.
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Keywords
synthetic, natural, gypsum, cement, pollution