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Synonyms: Slag cement, ground granulated blast furnace slag (GGBFS), granulated blast furnace slag (GBFS), Slag Product Form: Solid / powder or granular Intended Use of Product: Ground granulated blast furnace slag is used as an additive with portland cement in combination with water and aggregates to form concrete.
Blast Furnace Slag - Material Description ORIGIN In the production of iron, iron ore, iron scrap, and fluxes (limestone and/or dolomite) are charged into a blast furnace along with coke for fuel. The coke is combusted to produce carbon monoxide, which reduces the iron ore to a molten iron product.
permeable voids (VPV) and performance in wet–dry cycles for 50% FNS and 30% fly ash were better than those for OPC and natural sand. Keywords: ferronickel slag, fly ash, blast furnace slag, compressive strength, wet–dry cycle, porosity. 1. Introduction Substantial amounts of industrial by-products are currently
A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but also others such as lead or copper. Blast refers to the combustion air being "forced" or supplied above atmospheric pressure.. In a blast furnace, fuel (), ores, and flux are continuously supplied through the top of the furnace, while a hot blast of air (sometimes with ...
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. These ingredients, when heated at high temperatures form a rock-like substance that is ground .
SLAG Ground granulated blast-furnace slag (Fig. 3-5), also called slag cement, is made from iron blast-furnace slag; it is a nonmetallic hydraulic cement consisting essentially of sili-cates and aluminosilicates of calcium developed in a molten condition simultaneously with iron in a blast furnace. The molten slag at a temperature of about 1500°C
The physical properties of Ground Granulated blast furnace slag (GGBFS) provides advantages to the concrete in fresh state as well as in its hardened state. It is always recommended for a concrete mix design, that would provide us with a denser mass of concrete, i.e. a solid that is free from voids ...
The primary distinction among the three types is the percentage of slag they contain. Slag cement may contain portland cement (see on Wikipedia) or hydrated lime (or both) while the other two are blends of Portland cement and slag only. Blast furnace slag materials are generally available from slag processors located near iron production centres.
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.
May 05, 2013· Blast furnace slag granulation at cast house. Blast Furnaces normally generate 250 to 350 Kg of liquid slag for every ton of hot metal produced. This molten slag is at around 1400 – 1550 deg C temperature. Till seventies blast furnace (BF) slag was considered a waste product and was being dumped at a convenient place away from the blast furnace.
Each year, approx. 400 million tons of blast furnace slag is produced worldwide with a tapping temperature of around 1,500°C. Currently, the slag is granulated in wet granulation plants using large volumes of water and to date it has not been possible to utilize the remnant heat energy of the molten slag, with approx. 1.7 GJ of energy per ton.
of all the steel manufactured worldwide comes from blast furnace/BOF converter-route.4 In Europe each year approx. 30 million tonnes of blast furnace slag are produced (20% air cooled crystalline slag and 80% water granulated glassy slag), two-thirds of the complete amount of blast furnace slag in Europe is used in the cement industry.
In this study, a commercially available ground granulated blast-furnace slag (GGBS) was further processed by wet grinding, and WGGBS (wet-grinded GGBS) slurry with superfine particles was obtained. To avoid self-hydration of slag and augment the grinding efficiency, one commercially available polycarboxylate superplasticizer was added.
After fine grinding blast furnace slag can be used as the main raw material for the production of slag powder. It can replace silicon bath soil insulation packing and save cost. It can be used for the production of slag bricks and wet grinding slag concrete products. It used for thermal insulation filler.
Wet granulation, slag pelletizing and dry slag atomization technologies were compared to better understand the flexibility that each process has to treat a range of blast furnace compositions and produce by-product slag suitable for sale.
mix (Type I PC) and two 70% by weight ground granulated blast furnace slag (GGBFS) mixes (Type II Low Heat PC). One of the slag mixes contained a high range water reducer (HRWR). Tests for compressive strength, freeze-thaw durability, rapid chloride permeability, and salt scaling were conducted on field samples. Results showed that the
aggregate, as expanded blast-furnace slag,9 and as a fine aggregate10,11 under the form of non-ground-granulated blast-furnace slag (n-GGBFS) in concrete mixtures, but not in shotcrete mixtures. This project investigated the feasibility of using blast-furnace slag, in multiple forms, to produce dry-mix shotcrete mixtures with the explicit goals
The application of ultrafine ground-granulated blast-furnace slag (GGBFS) in concrete becomes widely used for high performance and environmental sustainability. The form of ultrafine slag (UFS) used in concrete is powder for convenience of transport and store. Drying-grinding-drying processes are needed before the application for wet emission.
Nov 01, 2018· Granulated blast furnace slag (GBS) is a glassy by-product of the steel industry that is formed during quenching of the molten slag after the blast furnace in a water-jet. To elucidate the cooling history of GBS, calorimetric scanning in the glass transition range and viscometric experiments at temperatures above the liquidus were performed.
12.5 Iron And Steel Production ... 0.2 to 0.4 tons of slag, and 2.5 to 3.5 tons of blast furnace gas containing up to 100 pounds (lb) of dust. The molten iron and slag are removed, or cast, from the furnace periodically. The casting ... The primary cleaner is normally a wet scrubber,
Blast furnace slag is known as a by-product from the production of hot metal at integrated steel and iron mills. Approximately 300 kg of this liquid slag with a temperature of about 1500°C is tapped together with each ton hot metal. This results in a worldwide annual production of about 400 million tons of blast furnace slag.
Blast Furnace Slag as a Concrete Aggregate MF 163-8 A. G. Timms NATIONAL SLAG ASSOCIATION Page 3 processed dry. It is sometimes supplied directly from the plants while it .
Processed Blast Furnace Slag, The All Purpose Construction Aggregate, National Slag Association, Alexandria, ia. ASA/RTA. A Guide to the Use of Slag in Roads, Australian Slag Association and Roads and Traffic Authority of NSW, New South Wales, Australia, 1993.
Blast Furnace Slag is formed when iron ore or iron pellets, coke and a flux (either limestone or dolomite) are melted together in a blast furnace.When the metallurgical smelting process is complete, the lime in the flux has been chemically combined with the aluminates and silicates of the ore and coke ash to form a non-metallic product called blast furnace slag.
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