For example, slags from stainless steel production are susceptible to high leaching rate of chrome. 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. During the Bronze Age of the Mediterranean there were a vast number of differential metallurgical processes in use. density of slag, solid is equal to 2 114 kg/m³. In this case, the slag is termed synthetic. From this and the added fluxing agents molten slag and iron are formed. This process causes several chemical reactions to take place within the slag, and gives the material its cementitious properties. [6], Glass-like by-product left over after a desired metal has been separated from its raw ore, Learn how and when to remove this template message, "The chemical composition of glass in Ancient Egypt by Mikey Brass (1999)", "High Performance Cement for High Strength and Extreme Durability by Konstantin Sobolev", https://en.wikipedia.org/w/index.php?title=Slag&oldid=998135873, Articles needing additional references from April 2020, All articles needing additional references, Articles with unsourced statements from April 2009, Creative Commons Attribution-ShareAlike License, This page was last edited on 4 January 2021, at 00:17. 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). Slag/metal reactions involve ions (Equn 1) and involve charge exchange resulting in the changes shown in Figure 1. In addition, concrete containing steel slag aggregate displays satisfactory compressive strengths and flexural strengths [ 28 – 30 ]. (4) Proper processing of steel slag and special quality-control procedures are extremely important in selecting steel slag for use in asphalt paving mixes. During smelting, when the ore is exposed to high temperatures, these impurities are separated from the molten metal and can be removed. As the slag is channeled out of the furnace, water is poured over it. Ground granulated slag reacts with a calcium byproduct created during the reaction of Portland cement to produce cementitious properties. The bulk density of the steelmaking slag is in the range of 1.6 tons/cum to 1.9 tons/cum. between BF slag and steel slag. This paper provides an overview of the different types of steel slag that are generated from basic-oxygen-furnace (BOF) steelmaking, electric-arc-furnace (EAF) steelmaking, and ladle-furnace steel refining processes. 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. 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. With high particle density and hardness, this slag has superior wear resistance and for this reason is used as an aggregate for asphalt concrete. The aim of this experiment is to study the effect of partial replacement of steel slag on various strength and durability properties of concrete by using mix design. Slag - Usage • Slag aggregates are approved for a number of uses although there are restrictions. Aggregate with Steel Slag at different Properties”. Table 10.1. It was primarily blue or green and was formerly chipped away and melted down to make glassware products and jewelry. 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. Any sandy component or quartz component of the original ore automatically carries through the smelting process as silicon dioxide. 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.