Study on the Strength Characteristics of Concrete using Iron Slag as Fine Aggregate

Although iron and steel slag is still today considered waste and is categorized in industrial waste catalogues in most countries in the world, it is most definitely not waste, neither by it sphysical and chemical properties nor according to data on its use as valuable material for different purposes. Moreover, since the earliest times of the discovery and development of processes of iron and other metals production, slag as by-product isused for satisfying diverse human needs, from the production of medicines and agro-technical agents to production of cement and construction elements. Iron and steel making slag are by products of their on making and steel making processes. Todate, these types of slag have been widely used in cement and as aggregate for civil works. There port presents an investigation of mechanical and durability properties of concrete by adding iron slag as replacement of sand in various percentages. There sults show that the strength properties of concrete increase significantly when sand is partially replaced by iron slag.