Fly Ash as Supplementary Cementious Material in Portland Pozzolana Cement Concrete

Abstract

Fly ash is a byproduct obtained from industries where coal or lignite is burnt like thermal power plant, steel, sugar, fertilizer industries etc. The Fly Ash is a class of artificial pozzolans, and generally comes in the category of non-conventional building material. It is particularly designed and processed as part supplement of cement in concrete to achieve improved performance.This work describes the utilization of this supplementary material (Fly ash) which is easily available, in the growth of new materials and technologies. It is considered that this material can be used as a supplementary material as partial replacement of cement in the construction industry in different areas. In the present study PPC cement was replaced by fly ash accordingly in the range of 0 to 60 % by weight of PPC cement at water cement ratio 0.48 for M-25 mix. Concrete mixtures were produced, tested and compared in terms of compressive strength. 1