Technical Evaluation of Sustainable Cement Containing Fly Ash and Carbide Lime Sludge

Abstract

Challenges faced by the consumption of cement in construction and loads build on natural raw materials mainly limestone, have necessitated need for other sustainable alternative cementations materials. Fly ash (FA) being waste product is used in manufacturing of Portland Pozzolana Cement (PPC), concrete and embankments. Still effective utilization of FA in terms of quantity is not achieved worldwide. Therefore, to increase the utilization of FA, Carbide Lime Sludge (CLS) an industrial waste, is used in the current study for the production of sustainable cement. The effective utilization of FA varying (5, 15, 25 and 35%) plus 10% CLS in terms of physical properties of cement with PPC containing FA varying (15, 25, 35 and 45%) have been evaluated. The outcome from this study would help to utilize up to 45% FA plus CLS with acceptable compressive strength vis a vis saving of limestone and reduction in carbon dioxide emissions.