STUDY ON CEMENTITIOUS PROPERTIES OF STEEL SLAG G. Zhua , Y. Haoa , C. Xiaa , Y. Zhanga , T. Hua , S. Suna,* a Central Research Institute of Building and Construction, Beijing, China (Received 10 August 2012; accepted 2 February 2013) Abstract The converter steel slag chemical and mineral components in China’s main steel plants have been analysed in the Slag is used in the manufacture of high-performance concretes, especially those used in the construction of bridges and coastal features, where its low permeability and greater resistance to chlorides and sulfates can help to reduce corrosive action and deterioration of the structure. The major components of these slags therefore include the oxides of calcium, magnesium, silicon, iron, and aluminum, with lesser amounts of manganese, phosphorus, and others depending on the specifics of the raw materials used. As the slag is channeled out of the furnace, water is poured over it. It was primarily blue or green and was formerly chipped away and melted down to make glassware products and jewelry. During the early 20th century, iron ore slag was also ground to a powder and used to make agate glass, also known as slag glass. Any sandy component or quartz component of the original ore automatically carries through the smelting process as silicon dioxide. The smelting of copper, lead and bauxite in non-ferrous smelting, for instance, is designed to remove the iron and silica that often occurs with those ores, and separates them as iron-silicate-based slags. Although the construction industry does use some slag as an aggregate, most is simply discarded. The electric arc furnace slag aggregates showed tendency to expand, which is related to the presence of certain volumetrically unstable periclase and free line (Evangelista and de Brito, 2010). Basic slag is a co-product of steelmaking, and is typically produced either through the blast furnace - oxygen converter route or the electric arc furnace - ladle furnace route. [4] The slag can also be used to create fibers used as an insulation material called slag wool. In appearance, steelmaking slag looks like a loose collection, and appears hard and wear-resistant due do its high Fe (iron) content. DENSITY OF STEEL The density of steel is in the range of 7.75 and 8.05 g/cm 3 (7750 and … properties of these slags have a significant effect on the performance of the process, e.g. Aggregate with Steel Slag at different Properties”. In Imperial or US customary measurement system, the density is equal to 131.9727 pound per cubic foot [lb/ft³], or 1.222 ounce per cubic inch [oz/inch³] . Physical Description SFS produced in the BOS is dark gray in color and characteristically harder than blast furnace slag (BFS) with a density approximately 20 - 25% greater than basalt or BFS. At the same time the abrasion resistance tends to be enhanced (Anastasiou and Papayianni, 2006). The iron ore is a mixture of iron oxides, silica, and alumina. The most common process is quenching with water, but air or a combination of air and water may be used. Because of the slowly released phosphate content in phosphorus-containing slag, and because of its liming effect, it is valued as fertilizer in gardens and farms in steel making areas. Its bulk density is in the … JSW Steel has set up a unique BOF slag granulation plant, producing slag with lower free lime content and is vigorously pursuing with BIS. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. 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