Standard Specification for Materials, "Aggregate and Soil-Aggregate Subbase, Base and Surface Courses," AASHTO Designation: M147-70 (1980), Part I Specifications, 14th Edition, 1986. NSA 181-14. Processed Blast Furnace Slag, The All Purpose Construction Aggregate, National Slag Association, Alexandria, ia. ASA/RTA.
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Blast Furnace Slag. satyendra; April 10, 2013 Metallic iron in the slag is removed by powerful magnets in the crushing and screening plant. Air cooled slag is hard and dense and is especially suitable for use as construction aggregate. It is also used in ready-mixed concrete, concrete products, asphaltic concrete, road bases and surfaces
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3. Blast-furnace slag is the glassy granular material formed when molten blast-furnace slag is rapidly chilled, as by immersion in water (Virgalitte et al., 2000). Blast furnace slag (4.75mm to 75 micron) was collected from jindal Steel Plant located at bhilai, Chhattisgarh for replacement to natural sand. The physical properties of blast
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Crushed stone is produced by crushing quarry rock, boul-ders, cobbles, or large-size gravel. Crushed air-cooled blast-furnace slag is also used as fine or coarse aggregate. The aggregates are usually washed and graded at the pit or plant. Some variation in the type, quality, cleanli-ness, grading, moisture content, and other properties is expected.
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AIR COOLED SLAG • Blast furnace slag is allowed to slowly cool by ambient air, is processed through a screening and crushing plant and is processed into many sizes for use primarily as a construction aggregate. Common uses are as aggregates in ready-mix concrete, precast concrete, hot mix asphalt aggregate, septic drain fields and pipe backfill.
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Blast furnace slag is allowed to slowly cool by ambient air, is processed through a screening and crushing plant and is processed into many sizes for use primarily as a construction aggregate. Common uses are as aggregates in ready-mix concrete, precast concrete, hot mix asphalt aggregate, septic drain fields and pipe backfill.
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Both air-cooled blast furnace slag (ACBFS) and expanded blast furnace slag can be used as a conventional aggregate in embankment or fill. They are generally considered by many specifying agencies to be conventional aggregates and require minimal processing to satisfy conventional soil and aggregate engineering requirements.
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Typical compacted unit weights for expanded blast furnace slag aggregates range from 800 kg/m 3 (50 lb/ft 3) to 1040 kg/m 3 (65 lb/ft 3). (6) Pelletized Blast Furnace Slag. Unlike air-cooled and expanded blast furnace slag, pelletized blast furnace slag has a smooth texture and rounded shape. Consequently, the porosity and water absorption are
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Secondary steel aggregates have a high abrasion and crushing resistance for road applications: air cooled blast furnace products bond particularly well to cement and bitumous binders. They also offer significant environmental benefits such as the reuse or recycling of material and the avoidance of the need to quarry natural aggregates.
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Crushed stone is produced by crushing quarry rock, boul-ders, cobbles, or large-size gravel. Crushed air-cooled blast-furnace slag is also used as fine or coarse aggregate. The aggregates are usually washed and graded at the pit or plant. Some variation in the type, quality, cleanli-ness, grading, moisture content, and other properties is expected.
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A direct alternative to primary aggregates, slag aggregates offer versatility and most importantly sustainable solutions to standard construction products. Steel aggregates have a high abrasion and crushing resistance for road applications: air cooled blast furnace products bond particularly well to cement and bitumous binders.
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This study focusses on understanding the influence of processed granulated blast furnace (PGBS) slag on fresh and hardened state properties of concrete. Nowadays, metallurgical slags are being explored as alternative materials to natural aggregates in concrete. Before using any such material in concrete, it is important to understand its influence on properties of concrete.
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Why is the limit stone added to the blast furnace Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Why is the limit stone added to the blast furnace, quarry, aggregate, and different kinds of minerals.
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Sand Slag Slag Sand. Blast furnace slag fine aggregate is a product for industrial use manufactured under suitable, qualitycontrolled conditions No deleterious materials: Blast furnace slag fine aggregate does not contain materials that may affect the strength and durability of concrete, such as Blast Furnace Slag an overview ScienceDirect Topics,18/10/2017 Blast furnace slag (BFS) is a
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3.The Results of 25%, 50%, 75% and 100% replacement of river sand with blast furnace slag has given acceptable Cold Crushing Strength (CCS) in 7 days and 28 days of curing 4.The use of blast furnace slag (as fine aggregate) as a replacement for river sand has given higher compressive strength.
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Sand Slag Slag Sand. Blast furnace slag fine aggregate is a product for industrial use manufactured under suitable, qualitycontrolled conditions No deleterious materials: Blast furnace slag fine aggregate does not contain materials that may affect the strength and durability of concrete, such as Blast Furnace Slag an overview ScienceDirect Topics,18/10/2017 Blast furnace slag (BFS) is a
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Fig 1: BF Slag Granulation PROBLEM Granulated blast furnace slags are available with steel industry for decades but were never accepted as a fine aggregate in construction activities till this developmental work. Several test have been carried out which confirms that granulated blast furnace slag is inert, non-toxic, free from traditional
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Granulated Blast Furnace Slag is obtained by rapidly chilling the molten ash of pig Iron from the blast furnace with the help of water. About Us A leading PAN India Distributors of Cement and building products.
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blast furnace slag. Blast furnace slag is excluded from the abrasion requirements. The density (unit weight) of blast furnace slag cannot be less than 1120 kg/m3 (70 pounds per cubic foot). 4. Steel Slag. By-product of a steel making process. Tough, hard, and durable pieces of steel slag reasonably uniform in density and quality.
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A synthetic aggregate may also be the byproduct of manufacturing and a final burning process—blast furnace slag is an example of a synthetic aggregate. Briefly, blast furnace slag is formed when iron ore or iron pellets, coke, and a flux (such as limestone, CaCO 3, or dolomite, CaCO 3 ·MgCO 3) are melted together in a blast furnace. When the
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Iron Blast Furnace Slag Aggregate for Concrete” in 1977 and fine BF slag aggregate as JIS A 5012 “Water Granulated Iron Blast Fur-nace Slag Aggregate for Concrete” in 1981. Thereafter, the two were unified as JIS A 5011-1 “Slag Aggregate for Concrete, Part 1 Blast Furnace Slag Aggregate”. Then, in 1983, the Japan Society of Civil
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material such as sand, gravel, crushed stone, blast-furnace slag, and lightweight aggregates that usually occupies approxi-mately 60 to 75% of the volume of concrete. Aggregate properties significantly affect the workability of plastic concrete and also the durability , strength, thermal properties, and density of hardened concrete.
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The aggregate crushing value, 10% fines aggregate crushing value, flakiness index, plasticity and compaction characteristics of both slag aggregates complied with the South African specifications
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Sand Slag Slag Sand. Blast furnace slag fine aggregate is a product for industrial use manufactured under suitable, qualitycontrolled conditions No deleterious materials: Blast furnace slag fine aggregate does not contain materials that may affect the strength and durability of concrete, such as Blast Furnace Slag an overview ScienceDirect Topics,18/10/2017 Blast furnace slag (BFS) is a
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porosity of slag. A pilot plant was constructed, and pro-duction of BFG under 1% became possible using this plant. 1. Introduction Due to the high porosity of blast furnace slag coarse aggregate (BFG), its water absorption is high (approximately 4%), and it is extremely difficult to con-trol the water content of the aggregate when BFG is
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The aggregate crushing value, 10% fines aggregate crushing value, flakiness index, plasticity and compaction characteristics of both slag aggregates complied with the South African specifications
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Iron Blast Furnace Slag. Synthetic nonmetallic byproduct simultaneously produced with pig iron in a blast furnace that consists primarily of a fused mixture of oxides of silica, alumina, calcium, and magnesia. Manufactured Fine Aggregate. 100% crushed rock, gravel, iron blast-furnace slag, reverberatory furnace slag, or steel furnace slag.
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The use of powdered form of granulated blast furnace slag as partial replacement of cement for making concrete has been well established (Patra and Mukharjee 2014). The properties of mortar and concrete were significantly influenced by the use of aggregates produced from steel slag because of the hydraulic activity of steel slag (Lin et al. 2003,
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Fig 1: BF Slag Granulation PROBLEM Granulated blast furnace slags are available with steel industry for decades but were never accepted as a fine aggregate in construction activities till this developmental work. Several test have been carried out which confirms that granulated blast furnace slag is inert, non-toxic, free from traditional
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For #1 Plant blast furnaces (#1, #2 & #3 furnaces) slag was hauled away in slag pots by rail. The larger later #2 Plant blast furnaces (#4 & #5 when I was there all had slag pits adjacent to the casthouse floor. Slag was removed by road from these slag pits.
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