Wollastonite: An Energy Efficient Building Material

Abstract

Cement production is synonymous to green house emissions and mineral resource depletion. So as to produce about 1tonne of cement, 1.5 tonne is required and nearly 1tonne green house gases are emitted out. This article present sustainable use of calcium meta silicate mineral "wollastonite" (CaSio3) as a partial replacement of cement. Six concrete mixes were prepared by replacing cement with wollastonite (0-25%). Test result showed that 10% wollastonite can effectively replace cement with improvement in strength and durability parameters. Incorporation of wollastonite in cement production will help in sustainable development of country.