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Utilisation of pulp and paper industry wastes as raw materials in cement clinke...

The present work assesses the incorporation of grits and dregs, both wastes from cellulose and paper making industry, in cement clinker production. Industrial trials were developed with conventional raw clinker, used as a reference material and with the addition of grits and dregs, 0.25% and 0.13%, respectively. All raw meals were fired at 1400?1500°C. Chemical composition of the final mixtures, gaseous emissio...