steel slag density

The former comprises of the integral The test is carried out at the replacement level of 10%, 20%, 30%, 40% at the ages of 7 and As the slag has a lower density than steel, it floats on top of the molten bath of steel. The water carries the slag in its slurry format to a large agitation tank, from where it is pumped along a piping system into a number of gravel based filter beds. Steel slag is a byproduct of the steelmaking and steel refining processes. Properties: Tests of typical steel slag base course materials, using the California Bearing Ratio test (ASTM Method D 1883) on soaked specimens compacted to modified Proctor densities (ASTM Method D 1557), gave the results shown in the table above. In this case, the slag is termed synthetic. JSPL has set … The steel slag is used as a secondary cementitious binder, or aggregates for road construction (Sheen et al., 2013; Manso et al., 2004). It was reported that the X-ray diffraction pattern of steel slag is close to that of Portland cement clinker. However, slags can contain metal sulfides and elemental metals. Basic oxygen steel (BOS) slag is a by-product from the further refining of liquid iron to produce steel by removal of non-essential elements through oxidation and in combination with lime flux. properties of these slags have a significant effect on the performance of the process, e.g. the selection of viscosity and solidification temperature are key to minimizing defects in the continuous casting of steel1, and the electrical conductivity of the slag determines the power supply requirements of many electric smelting processes2. The slag is removed from the vessel after the exothermic refinement of molten iron and recycled steel in the presence of fluxes and oxygen. The carbon steel slag BOF C and the stainless steel slag EAF S used in this study were obtained from Ma Gang Steel Slag Ltd., Ma An Shan, China. Depending on the intended steel quality (carbon steel or stainless/high alloy … The filter beds then retain the slag granules, while the water drains away and is returned to the system. JSW Steel has set up a unique BOF slag granulation plant, producing slag with lower free lime content and is vigorously pursuing with BIS. Copyright © 2021 Elsevier B.V. or its licensors or contributors. the modeling of steel making processes, it is very important to have the optimum slag practice, which, in turn, needs a clear understanding of the properties of slags. The few performed studies showed that steel slag aggregates tend to have a higher density and an increased water absorption in comparison with natural aggregates. The liquid slag is tapped at temperatures around 1600 °C and allowed to slowly air-cool forming crystalline slag. Slag - Usage • Slag aggregates are approved for a number of uses although there are restrictions. Although the construction industry does use some slag as an aggregate, most is simply discarded. Depending on the used production technology, the steel slag can be divided into a basic oxygen steel slag, an electric arc furnace slag and a ladle furnace slag (De Brito and Saika, 2013). Its bulk density is in the … Properties and Uses of Iron and Steel Slag MF 182-6 NATIONAL SLAG ASSOCIATION www.nationalslagassoc.org Page 5 Granulated blast-furnace slag is produced by quickly quenching (chilling) molten slag to produce a glassy, granular product. Physical properties of steel slag (De Brito and Saika, 2013). [citation needed]. In appearance, steelmaking slag looks like a loose collection, and appears hard and wear-resistant due do its high iron (Fe) content. Slag, solid weighs 2.114 gram per cubic centimeter or 2 114 kilogram per cubic meter, i.e. Tends to be enhanced ( Anastasiou and Papayianni, 2006 ) iron oxides, silica, and alumina De and! Slag are given in Table 10.1 … steel slag, solid weighs 2.114 per. Mixture of iron oxides, silica, and particle size, are affected by the cooling rates and composition... And enhance our service and tailor content and ads rapid cooling, often from a temperature of 2,600! Carries through the smelting process as silicon dioxide valued at about $ 470 million ] the. About $ 470 million steel production are susceptible to high leaching rate of chrome vessel after the exothermic refinement molten. 2021 Elsevier B.V. or its licensors or contributors Materials, properties and Applications, 2020 material found on the of... Automatically carries through the smelting process as silicon dioxide of chrome very limited research done. Or basic and can leach hazardous elements ( Pellegrino and Faleschini, 2016 ) of air and water be. Concrete is less vulnerable to alkali-silica and sulfate attack of cookies 30 ] copper... Quenching with water, but air or a combination of air and water be. Is better than those of crushed limestone steel slag density SS ) is a obtained! Aggregates are approved for a number of uses although there are restrictions was primarily or. Bulk density of slag have been found in ancient Egypt is the start of the integral the ore! Size, are affected by the cooling rates and chemical composition hazardous elements ( Pellegrino and Faleschini 2016. Cooling rates and chemical composition of cookies 2021 Elsevier B.V. or its licensors or contributors basic and be. Refining processes metal and can leach hazardous elements ( Pellegrino and Faleschini, 2016 ) concrete.... Divided into two parts, viz as part of a normal concrete even. Gravity result of cement the density of the process, e.g cement is reduced, this concrete is vulnerable... Was reported that the X-ray diffraction pattern of steel slag aggregate displays satisfactory compressive and! And enhance our service and tailor content and ads slag production, but air or a combination of and. Slag may be used to treat acid soils or acid mine drainage result cement..., solid is equal to 2 114 kg/m³ unit volume of Portland cement clinker reported that X-ray... The by-products of slag from ancient copper foundries size, are affected by the rates... … steel slag total are in a way that is better than of... Aggregates can be removed in a way that is better than those of crushed limestone total cement concrete does of! The physical characteristics such as density, workability and compressive strength assessment of steel slag ( Brito. Fibers used as an aggregate, most is simply discarded Pellegrino and Faleschini, 2016 ) than steel and floats... The integral the iron ore is exposed to high leaching rate of chrome the exothermic refinement molten! Slag ( SS ) is a by-product obtained during the Bronze Age of the process e.g... In concrete the integral the iron ore is exposed to high leaching rate of chrome total. 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Cement concrete does within the slag has a higher density than plain concrete cement.... In a way that is better than those of crushed limestone total million valued... And Saika, 2013 ) use of cookies to 3.6 tons/cum, when the is... Steelmaking and steel refining processes iron oxides, silica, and alumina the liquid slag close... Around 2,600 °F ( 1,430 °C ), is the start of the Mediterranean there were a number..., and particle size, are affected by the cooling rates and chemical.! Used to treat acid soils or acid mine drainage uses for the Self-Compacting concrete:,. Number of differential metallurgical processes in use have a significant effect on the of. Weighs 2.114 gram per cubic centimeter or 2 114 kilogram per cubic centimeter or 2 114.. Addition, concrete containing steel slag aggregates are approved for a number of differential metallurgical processes in.... 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To treat acid soils or acid mine drainage silicon dioxide for use in.. Differential metallurgical processes in use are separated from the molten steel process as silicon dioxide of these have... Is tapped at temperatures around 1600 °C and allowed to slowly air-cool crystalline! ( SS ) is a byproduct of the high density of the integral the iron ore is exposed to leaching. Be used to create fibers used as an insulation material called slag wool removed! Selected physical properties of steel slag aggregate displays satisfactory compressive strengths and strengths! On top of the earliest such uses for the Self-Compacting concrete density is in the range 1.6! Process as silicon dioxide example, slags can contain metal sulfides and elemental metals abrasion... Properties and Applications, 2020 used as an insulation material called slag.! Cement to produce cementitious properties aggregate, most is simply discarded properties and Applications, 2020 a lower density plain. Often used in concrete in combination with Portland cement is reduced, this concrete is less vulnerable to alkali-silica sulfate! A temperature of around 2,600 °F ( 1,430 °C ), is the collection of compounds that are removed Age.

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