Slagment is the registered trade name of our Ground Granulated Blast Furnace Slag (GGBFS). It is a latent hydraulic binder that is used in concrete and other construction applications as a partial cement replacement material. We have the capacity to produce over 800 000 tons of slag per year at our Slagment operation in Vanderbijlpark. Fly ash and Blast Furnace Slag for Cement Manufacturing GBFS is slag from the iron production in Basic Oxygen Furnaces. When this slag is actively cooled and ground, GBFS is produced, which can be utilised as a cement or concrete addition. GBFS is said to increase durability of concrete due to an increased setting time, which reduces
GGBS of Lafarge Emirates Cement conforms both to BS 6699:1992 & ASTM C 989-99 standards. It is produced by grinding premium quality Granulated Blast-furnace Slag, a by-product of steel manufacturing process, to a fineness of around 400 m2/kg. Pelletized blast furnace slag, in contrast to air-cooled and expanded blast furnace slag, has a relatively smooth texture and rounded shape. Grinding reduces the particle size to a cement fineness for use as a hydraulic cement, which is typically less than 3500 cm 2 /g. (8)
Cement is manufactured through a closely controlled chemical combination of calcium, silicon, aluminum, iron and other ingredients. Common materials used to manufacture cement include limestone, shells, and chalk or marl combined with shale, clay, slate, blast furnace slag, silica sand, and iron ore. Concrete containing ground blast-furnace slag or fly ash may gain strength at a slower rate during early stages (before 28 days) than if only Portland cement was used. The Contractor will adjust operations as necessary for staging activities to conform with the actual strength gained by the concrete.
Pelletized blast furnace slag, in contrast to air-cooled and expanded blast furnace slag, has a relatively smooth texture and rounded shape. Grinding reduces the particle size to a cement fineness for use as a hydraulic cement, which is typically less than 3500 cm 2 /g. (8) It has long been established by law and custom in most countries that a cement made from blast-furnace slag and limestone so as to comply with standard requirements of method of manufacture, chemical composition, fineness, strength, soundness, specific gravity, &c., is legitimately a Portland cement, and may be sold as such.
slag powder and blast furnace slag so the recycling of steel slag can bring enormous benefits and environ-mental benefit to whole society. 6. Ground granulated blast furnace slag is commonly used in combination with Portland cement in concrete for many applications[10,11] 7. The heat of hydration is dependent on the Portland Use of Blast Furnace Slag Aggregate in Concrete K.G. Hiraskar and Chetan Patil Abstract-The Iron industries produce a huge quantity of blast furnace slag as by–product, which is a non–biodegradable waste material from that only a small percentage of it is used by cement industries to manufacture cement.
After the granulated blast furnace slag is formed, it must be dewatered, dried and ground, using processes similar to those used with Portland cement clinker to make Portland cement. Typically, granulated slag is ground to an air-permeability (blaine) fineness exceeding that of Portland cement to obtain increased hydraulic activity at early ages. production process: steelmaking slag and blast-furnace slag. 24.97 million tons of blast-furnace slag and 14.4 million tons of steelmaking slag were generated in Japan in fiscal 20071). Efficient recycling of blast-furnace slag has already been achieved: today, of this slag is used as charge stock of Portland blast-furnace slag cement and ...
Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.Ground-granulated blast furnace slag is highly cementitious and high in CSH (calcium silicate hydrates) which is a strength enhancing ... Construction aggregate, or simply "aggregate", is a broad category of coarse to medium grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates.Aggregates are the most mined materials in the world. Aggregates are a component of composite materials such as concrete and asphalt concrete; the aggregate serves as ...
Hydraulic cement concrete is a cement and water paste in which aggregate particles are embedded. Aggregate is granular 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 ... discusses the potential use of ground granulated blast furnace slag (GGBS), naturally available river pebbles, crushed rock fines (CRF) as partial replacements to cement, sand and coarse aggregates for making green concrete. This research evaluates the strength of hardened concrete, by
It can be used in tested quantities to enhance the desired properties of concrete. Slag. Slag is produced during the iron-manufacturing process. During the manufacturing process the materials are heated in a blast furnace to a molten state. The slag rises to the top … May 09, 2018· Ground Granulated Blast Furnace Slag (GGBS) The importance of Ground Granulated Blast Furnace Slag (GGBS) lies in its greener way to become a substitute in concrete material. GGBS being a waste material, it needs proper method for disposal. So incorporating this waste material in concrete can reduce the depletion of conventional concrete components such as cement, fine aggregate …
Slag Paving Jobs Highway 1.4 km section of the Lincoln Alexander Freeway (1997) ... Cement manufacturing raw material Agriculture/soil amendment Fill Roof aggregate Railroad ballast Glass manufacture Gabions/rip rap Environmental applications - filter media Pelletized Blast Furnace Slag Concrete masonry Lightweight concrete Lightweight fill ... This specification covers three strength grades of finely ground granulated blast-furnace slag (Grades 80, 100, and 120) for use as a cementitious material in concrete and mortars. The slag shall contain no additions and shall conform to the sulfide sulfur and sulfate chemical composition requirement.
Slag cement is a hydraulic cement formed when granulated blast furnace slag (GGBFS) is ground to suitable fineness and is used to replace a portion of portland cement. It is a recovered industrial by-product of an iron blast furnace. Molten slag diverted from the iron blast furnace is rapidly chilled, producing glassy granules that yield ... A.L. Bush, in Encyclopedia of Materials: Science and Technology, 2001. 1.6 Expanded Blast Furnace Slag. Expanded blast furnace slag is a small part of the supply of structural lightweight aggregates. Annual production since 1985 has been about 1 million short tons (9×10 5 t); in 1997 that was about 12% of the total lightweight aggregate construction-related usage.
Blast furnace slag (BFS) is a non-metallic industrial by-product, which is produced in blast furnaces by the melting of the iron ore, producing molten pig iron . Worldwide, more than 500 million tons of blast furnace slag are produced every year . The blast furnace slag can be granulated slag (GBFS) or air-cooled blast furnace slag (ACBFS). 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.
Portland blast-furnace slag Cement UltraTech Premium is a concrete special cement, produced in UltraTech's state-of-the-art manufacturing facilities with carefully selected premium ingredients to deliver to the customer cement that produces both exceptionally strong as well as exceptionally durable concrete. Ground granulated blast furnace slag (GGBS) is a non-metallic product obtained as a byproduct from the blast furnaces used to make iron. Ground granulated blast furnace slag consists of silicates and aluminates of calcium and other bases. The size of its particles is less than 45 microns and specific surface area is about 400 to 600 m 2 /kg.
Cement / Concrete. Today, the main by-product of hot metal production in blast furnaces is granulated blast furnace slag (GBS, see statistics).After grinding to cement fineness (GGBS = ground granulated blast furnace slag) it is used as a main constituent of cement or as a separate concrete addition. A mixture of cement products is known as Blended Cement or Mix Cement. Ground Granulated Blast Furnace Slag. GGBFS/GGBS Ground Granulated Blast Furnace Slag/Ground Granulated Blastfurnace Slag is a GBFS that has been finely ground which has a cementitious properties like cement that can serve as an adhesive aggregate.
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 ... Fine aggregate consists of natural sand, manufactured sand, or a combination thereof with particles that are typically smaller than 0.2 inches. Coarse aggregate consists of either (or a combination of) gravel, crushed gravel, crushed stone, air-cooled blast furnace slag, or crushed concrete, with particles generally larger than 0.2 inches.
2001 by slag cement manufacturers and the Slag Cement Association, the American Concrete Institute officially reviewed and changed the terminology from GGBFS to slag cement (ACI Committee 233, 2004). The term slag cement will be used throughout this paper when referring to finely-ground granulated blast-furnace slag. Slag aggregates are now often preferred in specification as they are recognised to be a valuable material supporting versatile performance qualities. Granulated blast furnace slag (GGBS) Primarily used in the manufacture of concrete products as a cement replacement.
Blast furnace slag can also be used to make Ground Granulated Blast-furnace Slag (GGBS) which is used as a cement replacement in concrete. Blast Furnace Slag Formed during the manufacture of iron, molten blast furnace slag is cooled and processed in three ways to form slag aggregates for different applications. Anshan Jinhengxin Commercial and Trading Co.,Ltd: Aggregates are commonly used in construction work, including concrete. The aggregates are sourced from rock quarries, sand quarries and natural mines. We can supply concrete aggregates, such as sand, gravel, stone and crushed rock.Briefing of Branch Company -WORLD MARINE CO.,LTD is the Branch Company of ASJHX COMMERCIAL AND …
Making cement is energy intensive, generating up to 176 kg CO 2 for each tonne of concrete manufactured. Because Ground-granulated blast-furnace slag (GGBS or GGBFS) is a lower carbon building material, it's considerably more environmentally friendly. Apr 08, 2020· Concrete made with recycled steel slag is 17 percent stronger than traditional concrete. Disposing of slag is a millennia-old problem, but the "waste material" is highly sought in construction.
Many researches used The GGBFS as a partial replacement of cement in concrete, but a few of them used it as a replacement of aggregates specially as a sand.Chen et al  investigated on mortar made up of ground granulated blast furnace, gypsum, clinker and steel slag sand. By processing blast furnace slag into Skyway Cement or slag aggregate, the material is diverted from landfills. Utilization of Skyway Cement in concrete not only lessens the burden on landfills, it also conserves a manufactured product (Portland cement), reduces air emissions at the blast furnace and, through the avoided manufacture of ...
" Blast furnace slag was included among the products that could be used in cement and concrete ... and recommended for procurement practices in order to foster markets for materials recovered from solid waste." ... National Slag Association. 112 Airport Road, Suite 304 Coatesville, … Slag : Ground granulated blast furnace slag (GGBS) GGBS is primarily a latent hydraulic binder used as a type 2 addition to cement which produces Portland blastfurnace cement (6-35% of GGBS) or blastfurnace cement (36-90% GGBS) which is produced primarily by blending at the concrete mixer but can also be used to produce factory blends generally at the cement factory.