UTILIZATION OF FERROCHROME ASH AS A SOURCE MATERIAL FOR PRODUCTION OF GEOPOLYMER CONCRETE FOR A CLEANER SUSTAINABLE ENVIRONMENT

摘要

This paper addresses the importance of implementing circular economy for a sustainable future by focusing on the merits of the utilization of industrial wastes in the production of eco-friendly/green construction materials: preferably Geopolymers. The first part of the paper describes a circular economy business model, review of modern concretes concerning waste utilization and the second part demonstrates an experimental investigation on the development of open-air cured ferrochrome ash (FCA) based geopolymer concrete with regard to its workability and compressive strength along with various geopolymer reaction models, ground granulated blast furnace slag (GGBFS) was introduced to the system at appropriate substitution levels; scanning electron microscopy (SEM) and fourier transform infrared spectroscopy (FTIR) analysis of few hardened concrete samples are discussed.