Abstract Basic oxygen furnace slag (BOF slag) is an unavoidable by-product of steelmaking process of basic oxygen furnace. The main chemical constituents of BOF slag are CaO, FeO, Al 2O 3, SiO 2 and MgO. Due to its high metallic value
for the basic-oxygen-furnace steelmaking process. In the BOF process, molten iron is charged into a basic-oxygen furnace together with steel scraps and fluxing agents (lime or dolomite) to produce steel. The steel slag that is a by-product of the BOF steelmaking process is known as basic-oxygen-furnace slag. In the EAF process, recycled steel
tons of iron and steelmaking slag in 2003. There are two main types of slag, blast furnace slag and steelmaking slag. The former is produced as byproducts in the pro-cess of manufacturing pig iron in the blast furnace, and the latter is byproducts of steelmaking processes in the basic oxygen furnace (BOF), electric furnace, and so on.
basic oxygen furnace slag usage in concrete works. basic oxygen furnace slag usage in concrete works. Basic Oxygen Furnace Slag Concrete. Treatment and characterisation of electric arc furnace (EAF) slag for its Contact Supplier
The 7 & 28 days compressive strength of controlled mix and treated concrete i.e. basic oxygen furnace slag and Iron cutting waste replaced with 30% fine sand are shown in figure -3. By adding 30% basic oxygen furnace slag, there is large amount of increase in percentage i.e. 61.4% after 7 days and 74.4% strength after 28 days.
E. Steel Slag Aggregate. Provide open-hearth (OH), basic oxygen furnace (BOF), and electric arc furnace (EAF) steel slag aggregate (known as steel slag) according to the following requirements when 703.04 aggregate for asphalt concrete base or 703.05 aggregate for asphalt intermediate course is …
This research work evaluates the use of Basic oxygen furnace slag as a replacement for fine aggregates, in M-25 grade of concrete. The fine aggregates were partially replaced, by weight with Basic oxygen fur-nace slag. The prepared mixes were named as Mix-A, Mix-B, Mix-C and Mix-D. The mixes were prepared at 0%, 15%, 25% and 35% replace-
Basic Oxygen Furnace Steel Slag (BOF or Steel Furnace Slag) This slag Is formed when molten Iron, scrap metals and various fluxes, such as lime, are oxidized by injecting large amounts of pure oxygen into the molten iron mix to create molten steel and molten slag.
Basic Oxygen Furnace steel slag. GG. ... " 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." Mineral Commodity Summaries, USGS.
an aggregate in concrete. Slag production and consumption centered around the iron and steel slag produced by BHP Steel in two areas in Australia—Port Kembla and Newcastle in New South Wales. The BHP plant at Whyalla, South Australia, also produced 350,000 tons of blast furnace rock slag and 125,000 tons of basic oxygen furnace slag.
pavement, RAP, steel furnace slag, SFS, electric arc furnace slag, EAF, basic oxygen furnace slag, BOF, expansion, autoclave, free lime, free CaO, ethylene glycol test, concrete durability, concrete fracture 18. Distribution Statement No restrictions. This document is available to the public through the National Technical Information Service,
Basic Oxygen Furnace (BOF) slag is a major waste product generated during the steelmaking process. In India and in most industrial countries, the use of BOF slag as a …
Little basic oxygen slag is used as a portland cement concrete aggregate because of its unsoundness in concrete. However, soundness of basic oxygen furnace slag in concrete appears to largely depend upon the mineralogical and chemical compositions of the slag.
Characteristics and mechanisms of phosphate adsorption onto basic oxygen furnace slag. ... slag were identified as a function of pH and ion strengths in solution. ... process of the BOF slag, and making a comparative analysis to gain ... and total calcium, magnesium and …
Concrete with slag cement will … basic oxygen furnace slag usage in concrete works. ... basic oxygen furnace slag usage in concrete works;, ... Basic oxygen steelmaking - Wikipedia The majority of steel manufactured in the world is produced using the basic oxygen furnace. ...
The basic oxygen furnace steel slag (BOFS) was mixed with electric arc furnace steel slag (EAFS) in appropriate ratios and heated again at high temperature in the laboratory.
resources and also eliminates environmental pollution. In this study, the Basic Oxygen Furnace Slag was used; it is the major type of steel slag produced from steel making industries and co-product of iron steel slag…
Blast Furnace Slag is the co-product of iron making in a blast furnace, while Steel Slag is a co-product of steel making in a BOF (Basic Oxygen Furnace) or EAF (Electric Arc Furnace). Blast furnace slag is used in a variety of applications including structural concrete, mineral wool, and glass manufacture.
Basic oxygen furnace slag - BOS (also called LD-converter slag) is formed during the conversion of hot metal from the blast furnace into steel in a basic oxygen furnace. In this process the hot metal is treated by blowing oxygen to remove carbon and other elements that have a high affinity to oxygen.
35% replacement levels of Basic oxygen furnace slag respectively adding Basic oxygen furnace slag to the concrete. From the obtained values of density Basic Oxygen furnace slag based concrete gives greater density than controlled M-25 grade of concrete & gives a maximum value 2497.2 Kg/m3 at 35% replacement.
In the basic oxygen process, hot liquid blast furnace metal, scrap, and fluxes, which consist of lime (CaO) and dolomitic lime (CaO.MgO or "dolime"), are charged to a converter (furnace). ... one reason why steel slag aggregates are not suitable for use in Portland cement concrete or as compacted fill beneath concrete slabs. Steel slag destined ...
The work presented in this project reports is an investigation in utilization of basic oxygen furnace steel slag in Concrete. 2. Materials and Methods 2.1 Steel slag It is obtained from Factor Steels Ltd. 46, A&B MIDC industrial Estate, hingna Road Nagpur. Extraction of 'iron' from ores is a complex process requiring a number of other
Concrete aggregate manufactured using iron and steel slag as a raw material include blast furnace slag aggregate and electric arc furnace oxidizing slag aggregate. Iron and steel slag utilized for roads is manufactured by crushing and mechanically stabilizing blast furnace and steelmaking slag for use …
Basic Oxygen Furnace (BOF) slag is the industrial by-product from the steel-refining process in a conversion furnace, and its output accounts for 15~20% by mass of the total output of crude steel . In China, 1.5 × 10 8 tons of BOF slag was produced in 2015 . However, the current utilization rate of BOF slag in China is only 22%.
Abstract. This research work evaluates the use of Basic oxygen furnace slag as a replacement for fine aggregates, in M-25 grade of concrete. The fine aggregates were partially replaced, by weight with Basic oxygen furnace slag.
Dec 27, 2017· Geotechnical Properties of Fresh and Aged Basic Oxygen Furnace . The test results indicated that both fresh and aged BOF steel slag exhibit superior strength and stiffness characteristics to conventional frictional materials.
Basic Oxygen Furnace (BOF) Dr. Dmitri Kopeliovich Basic Oxygen Furnace (BOF) is a steel making furnace, in which molten pig iron and steel scrap convert into steel due to oxidizing action of oxygen blown into the melt under a basic slag.
Dec 27, 2017· The use of steel slag in concrete - IOPscience. ... ITP Steel: Recycling and Reuse of Basic Oxygen Furnace (BOF . ... This work focuses on the use of copper slag, as a partial replacement of sand for use in cement concrete and building construction. Scope of the Study.
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