Suitability of oil shale ash as a constituent of cement

Abstract

Physical and chemical characteristics of ashes formed at burning oil shale at temperatures 500, 600, 700, 800, 900 and 1030°C were studied. Standard procedures were used to determine both pozzolanic activity and binding parameters. The most suitable characteristics were provided with oil shale ash formed at 700°C. Ashes (15 and 30%) were added to ordinary Portland cement. The optimum pozzolanic characteristics and performances were provided by the mixture containing 15% ashes. The mixes meet the corresponding Turkish standards, and therefore, this oil shale can be used as an admixture in Portland cement. © 2007 Estonian Academy Publishers.