Development of Sustainable Walling Materials using Iron and Steel Industry Waste A Comprehensive Study in Context to Blast Furnace Slag

Abstract

Solid waste management is one of the prime concerns in the world due to ever increasing newlineproportion of non-biodegradable industrial waste products. Blast Furnace Slag (BFS) is one newlineof the largest by products of steel and iron industries which creates scarcity of land filling newlinearea due to ineffective reuse and recycling. The uses of such substance to create walling newlinematerials like building blocks and mortar not most effective makes it economical, however newlinealso enables in decreasing disposal concern. Due to preferable mechanical properties, newlineconventional clay bricks are considered as prime source of masonry units that is used as newlinewalling material. Conventional clay bricks required burning process known as kiln firing newlinewhich emits huge amount of CO2 into the atmosphere. The major reasons behind pollution newlineand environment depletion are due to unremitting decay in natural resources caused from newlinederiving of raw materials such as sand, clay and dirt and also from huge amount of newlinehazardous and non-hazardous wastes produced by the industries. Reuse of industrial waste newlinesuch as BFS instead of naturally occurring raw material leads to contribute towards green newlineenvironment. newlineDetailed research study had been carried out to determine the properties of raw materials newlinesuch as cement, river sand and BFS along with its effect on production of BFS based newlinemortar and building blocks. Based on the results, the physical properties of BFS such as newlineunit weight and specific gravity were recorded more than the river sand. The chemical newlineproperties of raw materials were determined by UV-Spectroscopic analysis and X-Ray newlineFluorescence (XRF) analysis. The UV-Spectroscopy spectrum shows that BFS contains newlinebonding molecules same to cement which provides more cohesive and impervious nature newlineto the walling materials. XRF spectrums depicted that BFS contains strength and stability newlineenhancing chemical components like compound of iron, calcium, magnesium, titanium, newlinemanganese etc.