MANUFACTURING OF FIRED CLAY BRICK WITH IRON ORE TAILING AND STEEL SLAG

Abstract

There has been a growing environmental and economic concern about the final destination of industrial waste. This paper aims to evaluate the effect of incorporating iron ore tailing and steel slag on red ceramic bricks. The procedure for producing the fired bricks simply includes forming the bricks by compressing them into a mold under a specified pressure, and calcination (950 °C). In this study, the influence of high substitution (>50%) of clay with IOT and BOF slag are investigated using flexural strength and scanning electron microscope (SEM). Results show that IOT and BOF slag can be used together to produce fired clay brick with high level substitution, however some adjustments are required depending on the final application. This study contributes to the valorization of the waste, contributing to the planning and management of waste based on sustainability principles and aiming at reducing greenhouse gas emissions.