Steel slag is commonly used to cover driveways, to fill potholes, repair farm lanes, residential entrances, or yards.Steel slag is not just good for driveways, it is also used by homeowners as a landscaping stone in back yards around a pool area or patio. Steel slag is currently utilized both to treat wastewater, and as a concrete aggregate. $ÄËÀë)¤™€ØˆxӁ4#Ï0 6­¯ The Ground Granulated Blast Furnace Slag (GGBS) is obtained by grinding blast furnace slag in water or steam. Due to its positive technical characteristics, LD slag is used all over the world in road and railway construction and for engineering. Slags are nonmetallic byproducts of many metallurgical operations and consist primarily of calcium, magnesium, and aluminum silicates in various combinations. The percentages of slag used as cement substitution were 10%, 20%, and 30% from total volume. $75. Doing so would both offset the cost of restoring abandoned mine areas, as well as decrease steel manufacturers’ current waste footprint. Full details of the specific properties and applications for each of the types of slag can be found on the pages as follows: Air-cooled Blast Furnace Slag (ABS) Air-cooled Basic Oxygen Steel Slag (BOS) Â0Dïûó&»1šî¹Bñ¨. Steel slag is residue from the steelmaking process, made of minerals like silica, alumina and titanium from iron sand, and combinations of calcium and magnesium oxides. Environmentally friendly and reduced greenhouse gas emissions. startxref Steel slag is used for dressing and for As a result of growing environmental awareness, iron and steel slag is highly regarded as a recycled material that can reduce impacts on the environment due … Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data, Historical Statistics for Mineral and Material Commodities in the United States, Iron and Steel Statistics and Information, Iron and Steel Scrap Statistics and Information. Blast furnace slag is used in a variety of applications including structural concrete, mineral wool, and glass manufacture. An increase of its production results in more landfills. 25 0 obj<>stream 18 0 obj <> endobj 18 8 Today, iron and steel slag is used in many fields where its unique characteristics can be put to effective use. Coal Slag – is generally used paint, rust, and scale have to be removed from steel, such as car/truck frames, tanks, heavy machinery, farm equipment, etc. Tata Steel IBMD is one of the leading suppliers of GGBS and the product has been used in construction of many iconic structures in India. Steel slag may contain free lime (CaO or MgO) that may cause the slag to be expansive or cause differential movement when used as a base. Docksides, yards, other areas subject to heavy loads use steel slag for both sur- face and sub-ballast. Slag is defined as a waste material produced from iron ore smelting process in blast furnace. Steel slag, an unavoidable by-product in iron and steel production, may soon finds its way into agricultural land as soil nutrient, potentially cutting down India’s dependence on fertiliser imports. The most common use is as an aggregate in the manufacture of asphalt. 0000001204 00000 n 0000000846 00000 n $500. slag (GGBFS). Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore.Slag is usually a mixture of metal oxides and silicon dioxide.However, slags can contain metal sulfides and elemental metals. Approximately 40% of iron and steel slag products, and 60% of blast furnace slag, are used in cement. Figure 1 shows the particle size distributions of the cement and steel slag powder. 0000000637 00000 n Although the construction industry does use some slag as an aggregate, most is simply discarded. Characteristics and Uses of Steel Slag in Building Construction focuses predominantly on the utilization of ferrous slag (blast furnace and steel slag) in building construction.. Iron and steel slag products are used in a variety of areas where their unique characteristics are put to effective use. Slag use is subject to strict regulations and standards. Steel slag can also be used to absorb contaminants like phosphate, magnesium, iron, calcium, silica and aluminum in the wastewater treatment process, but loses its effectiveness over time. The pile of steel slag occupies a huge area of arable land, and causes environmental pollution; moreover, 7%-15% steel can be recycled from steel slag. Slag processing GGBS; How Is Slag Used? However, slag could be used to treat acid soils or acid mine drainage. Our slag cement CEMSlag TM is a hydraulic cement material created when granulated blast-furnace slag from the steel manufacturing process is ground to a fineness suited for concrete production. Akinwumi concluded that steel slag can be used as a low cost soil modifier for use in subgrade stabilization. Slag are shown in figure 2, LD slag is used as a concrete aggregate sub-ballast. Face and sub-ballast and 30 % from total volume that steel slag products are used in a variety areas. 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