Steel Slag as a Construction Material for Sustainable Deveploment: A State of Art

Abstract

Abstract In India large amount of iron & steel slags are generated from steel industry and disposed in the yards of production units. Due to limited use, these slag materials occupy largest areas and also causing environmental pollution. These slag materials can be possible to use in construction industry effectively. In this paper, a thorough review has been carried out on the work done by various researchers on the use of steel slag as a construction material. Steel slag has good properties such as high bearing strength, excellent soundness & abrasion resistance. Steel slag aggregate material can hold heat for a longer period than natural aggregate due to their high heat capacity. In this review, it was revealed that the compressive strength of concrete increases when slag is substituted with natural aggregate, reaching its maximum strength at 40% slag. It is recommended that steel slag can be used as an alternate material to replace a portion of the aggregate in concrete. This will help to reduce construction expenses and ensure the safe disposal of steel slag so as to achieve sustainability.