3-5), also called slag cement, is made from iron blast-furnace slag; it is a nonmetallic hydraulic cement consisting essentially of sili-cates and aluminosilicates of calcium developed in a molten condition simultaneously with iron in a blast furnace. centage of furnace slag and all specimens were weighed to calculate density 15] and unit weight of concrete , and compressive strength . Because of the powerful latent hydraulic property that results from fine grinding, this slag is used in products such as Portland blast furnace slag cement. Ground Granulated Blast Furnace Slag (GGBS) is a cement substitute that improves durability and also the environmental credentials of concrete mixes. economy, since the blast furnace fuel rate increases and the productivity decreases. The molten slag at a temperature of about 1500°C The influence of slag basicity and the TiO 2 content on the density was analyzed according to the measurements. Blast Furnace Slag (BFS) Brief Description . The mineral composition of blast furnace slag generally consists of melilite (Ca 2 MgSi 2 O 7 - Ca 2 Al 2 SiO 7) and merwinite (Ca 3 MgSi 2 O 8).Steelmaking slag (BOS or EAF) mainly consist of dicalciumsilicate (Ca 2 SiO 4), dicalciumferrite (Ca 2 Fe 2 O 5) and wuestite (Fe 1 -x- y,Mg x,Mn y)O z.. The density of blast furnace slag bearing TiO 2 has been investigated using the dispensed drop method at 1673 K under the Argon atmosphere (Pressure ≈1.2 atm).  It affects the heat balance of the blast furnace in two ways: by lowering the carbon content in coke, which lowers calorific value, and by requiring additional slag former to melt the coke ash, which demands extra energy and increases the slag volume. Blast furnace slag is recovered by melting separation from blast furnaces that produce molten pig iron. Approximately 290 kg of slag is generated for each ton of pig iron. BFS is formed in a blast furnace with molten iron from iron ore in the reducing presence of heated air, coke and limestone. The density of blast furnace slag bearing TiO2 has been investigated using the dispensed drop method at 1 673 K under the Argon atmosphere (Pressure approximate to 1.2 atm). It consists of non-ferrous components contained in the iron ore together with limestone as an auxiliary materials and ash from coke. Portland Blast Furnace Slag Cement is particularly suitable for rivers, ports, roads and tunnels. It is a by-product of the iron-making industry. Granulated blast furnace slag Just like air-cooled blast furnace slag, this slag has a hydraulic property and there is no risk of alkali-aggregate reaction. The slag has a lower density than steel and therefore floats on top of the molten steel. 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. SLAG Ground granulated blast-furnace slag (Fig. Blast furnace slag cement type B (Density: 3.04 g/cm3, speciﬁc surface area: 3810 cm2/g) Fine aggregate S Crushed sand (Density in saturated surface dry condition: 2.57 g/cm3, absorption: 1.77%) BFS5 Blast furnace slag sand made in Fukuyama (Density in saturated surface dry condition: 2.73 g/cm3, absorption: 0.30%) BFS1.2 The resulting molten slag and iron, once removed from the furnace, are subject to further processing to form a crystalline aggregate or ground blast furnace slag . To flux the silica produced during steelmaking, limestone and/or dolomite are added, as well as other types of slag conditioners such as calcium aluminate or fluorspar .