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Abstract. A steel-making slag (basic oxygen furnace) obtained from the Kardemir Steelworks was modified to be used as a clinker additive in the cement industry.
Basic oxygen furnace steel slags have become less available recently because of the closure of several integrated iron and steel complexes, thus, the long-term supply of steel slag …
Steel Slag – Basic Oxygen Furnace Slag (BOS) lime, additions steel liquid BOS converter gas BOS-Process Measures to influence the quality of the slag Process stage 1) Measures to influence the quality Influenced properties Raw material and pre preparation raw materials relating Melting process Heat treatment Processing selection, arrangement
Steel Furnace Slag Steel Furnace Slag is produced in a (BOF) Basic Oxygen Furnace or an (EAF) Electric Arc Furnace. Hot iron (BOF) and/or scrap metal …
pH Due to the effects of the limestone it contains, the pH of iron and steel slag increases to 10 – 12 when it reacts with water, indicating alkalinity that is the same or lower than that of recycled concrete base course material and cement-stabilized soil.
This study reused the basic oxygen furnace slag, submitted to different cooling processes, for the partial replacement of clinker. Formulations of CPIII portland cement were prepared with substitution of 5.4% by weight of clinker by basic oxygen slag with 53 and 71% amorphous phase.
Basic Oygen Furncace (BOF) is a pear shaped vessel where the pig iron from blast furnace, and ferrous scrap, is refined into steel by injecting a jet high-purity oxygen through the hot metal.
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 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 …
SCMM used was the mixture of Portland cement and basic oxygen furnace slag with mass ratio of 70:30 marked S0. Two contents of SF were 3% and 5% by weight of the cementitious materials marked SF3 and SF5, respectively. Four contents of NS were 1%, 2%, 3% and 5% marked SN1, SN2, SN3 and SN5, respectively. Details of mix
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,
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.
Steel Slag Base and Subbase Aggregates. Steel slag is the by-product of steel making. It is produced in one of three furnace types: Open-Hearth, Basic Oxygen or Electric Arc Furnace.
Basic oxygen furnace (BOF) slag is a by-product of steel plants and is different from conventional natural aggregates. Studies have shown that BOF slag asphalt concrete is able to store heat.
Abstract: The basic oxygen furnace slag (BOF) was wide used in road construction, but there was a lack of characteristics in different asphalt mixtures. This study investigates the properties of
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.
This work deals with the modification of one basic oxygen furnace (BOF) slag with the objective of making it an appropriate additive in blended cement formulations. Two different modified slags were produced in a pilot-scale metallurgical reactor by mixing additives into 300 kg of remelted BOF slag.
Utilization of Basic Oxygen Furnace, slag in the production of a hydraulic cement binder, Basic Oxygen Furnace (BOF) slag is a major waste product generated . Chat Effect of steel slag and Portland cement in the rate,
blast furnace slag in concrete mixes, few researches have been performed regarding the utilization of steel slag in concrete.[1] ... V. PRODUCTION OF STEEL SLAG A. BASIC OXYGEN PROCESS In the Basic Oxygen Furnace (BOF), the hot liquid metal from the blast furnace…
Properties of hydraulic paste of basic oxygen furnace slag The operating principle of the basic oxygen furnace is to blow oxygen in order to oxidize carbon and then reduce its content in pig iron. During this operation, lime is introduced to fix undesirable elements in slag and protect refractory lining.
The slag generated from a steelmaking cycle is later processed, and the final product after processing is referred to as basic-oxygen-furnace slag (BOF slag). The chemical reactions occurring during the removal of impurities determine the chemical composition of the basic-oxygen-furnace slag …
Blast furnace slag concrete can be ... to the ready-mix production in a saturated condition. Use of the cementatious properties of ground granulated blast furnace (GGBF) slag was reported as early as 1774. GGBF slag has been used in concrete in ... basic oxygen furnace process, and the open hearth process. Differences in the
A steel-making slag (basic oxygen furnace) obtained from the Kardemir Steelworks was modified to be used as a clinker additive in the cement industry.
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.
The slag occurs as a molten liquid melt and is a complex solution of silicates and oxides that solidifies upon cooling. Virtually all steel is now made in integrated steel plants using a version of the basic oxygen process or in specialty steel plants (mini-mills) using an electric arc furnace process.
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 road ballast and land filler ...
Concrete Produced by Steel-Making Slag (Basic Oxygen Furnace) Addition in Portland Cement Hasan Alanyali,* Mustafa C¸o¨l, Muharrem Yilmaz, and S¸adi Karago¨z Faculty of Engineering, Kocaeli University, Izmit-Kocaeli, Turkey A steel-making slag (basic oxygen furnace) obtained from the Kardemir Steelworks was modified to be used as a clinker
Steel Furnace Slag is produced in a (BOF) Basic Oxygen Furnace or an (EAF) Electric Arc Furnace. Hot iron (BOF) and/or scrap metal (EAF) are the primary metals to make steel in each process. Lime is injected to act as a fluxing agent.