Crushing & Grinding Machines

Applicability of Basic Oxygen Furnace Slag as a Concrete

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...

Quantification of Hydraulic Phase Contained in a Basic

Apr 04 2014 0183 32 The aim of the work presented here was to quantify the mineralogical phases contained in a basic oxygen furnace slag BOFS and especially the hydraulic phases so as to evaluate the reactivity of this material The chemical and mineralogical characteristics of BOFS were analyzed...

Using Carbonated BOF Slag Aggregates in Alkali

quality and durability of the concrete in addition to lower CO2 emissions and production costs On the other hand a reduction in the mechanical properties was reported when gt 25 of basic oxygen furnace BOF slag aggregate was used in the concrete mixture 7 13 14 Moreover some drawbacks such as...

Parametric Study of Steel Slag Powder as Cementitious

Steel slag basic oxygen furnace slag is a by-product left over from the conversion of iron to steel in steel industri This paper explores the use of partially replacing cement with locally available steel slag for making of cement mortar The effects of steel slag powder on the normal consistency water requirement setting times...

Electric Arc Furnace Slag and Blast Furnace Dust Use for

This paper analyzes how feasible it is to use electric arc furnace slag as coarse aggregate and blast furnace dust as fine aggregate in the manufacture of hot asphalt concrete for roads Three mixtures were designed using the Ramcodes methodology the M1 mixture of control with conventional materials the M2 mixture replacing 50 and the M3 mixture replacing 100 of the conventional...

SN Silva s research works

The basic oxygen furnace BOF slag use as raw material for cement production carries economic environmental and technical benefits to the cement industry reducing energy costs material...

Utilization of Basic Oxygen Furnace BOF slag in the

May 01 2006 0183 32 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 has had a very long history This being a low end use a study was conducted to examine the possibility of converting the slag into a hydraulic binder...

Environmental Impact Assessment and Total Cost Analysis of

Aug 04 2017 0183 32 Basic oxygen-furnace BOF and Baosteel slag short-flow BSSF slag as steel byproduct are rarely used and generally disposed of This study explores the environmental impact of replacing some of the coarse aggregates with steel slag in DGAC...

Recycling of Basic Oxygen Furnace Slag as a Raw Material

sustainability Article Recycling of Basic Oxygen Furnace Slag as a Raw Material for Autoclaved Aerated Concrete Production Ying-Liang Chen 1 and Chun-Ta Lin 2 1 Department of Resources Engineering National Cheng Kung University Tainan City 70101 Taiwan 2 Department of Environmental Engineering National Cheng Kung University Tainan City 70101 Taiwan...

Use of Steel Slag Aggregate in Pavements Report

Blast Furnace Steel Slag Blast Furnace Slag Ground Granulated Blast Furnace Slag Ger Ground Granulated Blast Furnace Slag UK Basic Oxygen Furnace Slag Electric Arc Furnace Slag Calcium Oxide CaO 32 to 45 392 40 43 35 Silicon Oxide SiO 3 32 to 42 400 35 15 14 Iron Oxide Fe 2 O 3 01 to 075 18 02 25 29...

Basic Oxygen Steel Slag BOS

May 06 2016 0183 32 Description...

Influence of Cooling Efficiency of Basic Oxygen Furnace

Basic Oxygen Furnace BOF slag is a by-product generated during the steelmaking process a rapidly-developing heavy industry in Taiwan Statistical data showed that approximately 120 million tons of BOF slag have been produced by China Steel Corporation each year The by-product materials have generally been treated as waste and were buried in landfills and have gradually become an...

Basic slag

Basic slag is a co-product of steelmaking and is typically produced either through the blast furnace - oxygen converter route or the electric arc furnace - ladle furnace route To flux the silica produced during steelmaking limestone and/or dolomite are added as well as other types of slag conditioners such as calcium aluminate or fluorspar...

Stabilization of Basic Oxygen Furnace Slag by Hot

1 Stabilization of basic oxygen furnace slag by hot-stage carbonation treatment Rafael M Santos a Da Ling b Amin Sarvaramini c Muxing Guo b Jan Elsen d Faïçal Larachi c Georges Beaudoin e Bart Blanpain b Tom Van Gerven a a KU Leuven Dept Chemical Engineering Willem de Croylaan 46 3001 Leuven Belgium b KU Leuven Dept Metallurgy and Materials Engineering Kasteelpark...

Usinggroundgranulatedblast

mix can contain ground granulated blast-furnace slag up to 55 basic oxygen slag up to 70 cement by-pass dust up to 10 and plasterboard gypsum up to 5 by weight 1...

PDF Dephosphorization of Steelmaking Slag

Slag generated during steel making in Basic Oxygen Furnace BOF is one of the major waste materials in an integrated steel plant Generation rate of Steelmaking LD slag is 150-180 kg per ton of...

Slag recycling

In addition 74 Mta of steelworks slag was produced Fig 9 shows the amounts recovered It can be seen that only granulated blast furnace slag GBFS can be used as a cement additive For ready-mixed concrete and other types of concrete both normal blast furnace slag and steelworks slag are used with respective totals of 387 and 203...

Basic Oxygen Furnace BOF

HarbisonWalker International is a predominant supplier of basic oxygen furnace BOF refractories in the United States where the BOF is the primary device used to produce high-quality integrated steel In the 1980s some mills adopted the technique of slag splashing to extend the life of a campaign Slag splashing provides a refractory...

Fly ash and Blast Furnace Slag for Cement Manufacturing

Fly ash and Blast Furnace Slag for Cement Manufacturing GBFS is slag from the iron production in Basic Oxygen Furnac 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...

Effect of steel slag and Portland cement in the rate of

Steel slag is a by-product of the transformation of iron to steel Pig iron is collected from the blast furnace transferred to the steel plant and charged into a steelmaking vessel typically a basic oxygen furnace BOF During the conversion pig iron and scrap are melted and fluxes of lime or dolomite are mixed into the furnace In order to...

Utilization of waste from steel and iron industry as

Jul 05 2019 0183 32 The viability of combining waste slag produced from steel Basic Oxygen furnace and iron Blast Furnace industry as replacement of cement in cement mortars was investigated The impacts on the normal consistency setting times soundness compressive strength microstructure and durability of cement paste/mortar were studied The results revealed that the water requirement and...

Utilization of Carbonated BOF Slag as Partial Replacement

After direct mineral carbonation a material rich in carbonates and with reduced quantities of free oxides is obtained The aim of this work was to show that such materials can be used in the construction domain Basic Oxygen Furnace BOF slag from the steelmaking process has been traditionally seen as unfit for bounded applications due to its propensity to swelling resulting from hydration...

Influence of BOF and GGBFS Based Alkali Activated

Basic oxygen furnace slag BOF is a byproduct created during the steelmaking process and is the solid waste created when iron ore are converted in a basic oxygen furnace 10 BOF features polygonal-shaped aggregates high specific gravity high unit weight low water absorption rate low abrasion rate and high compression resistance 11...

Research Article Characterization of Ladle Furnace Slag

e slag as an alternative adsorbent has been used to remove heavy metals in the environmental eld due to its unique properties e major heavy metal removal mechanisms are precipitation and adsorption on the surface of an adsorbent is paper describes the characterization of the ladle furnace slag e investigated chemical and mineralogical...

Basic Oxygen Furnace Slag BOFS Graded Aggregates_CHC

Raw materials and production process BOFS graded aggregates are by-products of BOF steelmaking in a wholly integrated steel mill Their main chemical compositions are CaO SiO 2 Al 2 O 3 Fe 2 O 3 etcThe molten slag is cooled and solidified into basic oxygen furnace slag which then undergoes crushing magnetic separation and screening to make BOFS graded aggregat...

slag MID RIVER MINERALS

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 Slow cooling of the molten slag produces a dense rock material Principal uses...

Basic oxygen furnace slag

Nov 24 2020 0183 32 Basic oxygen furnace slag 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 furnaceIn this process the hot metal is treated by blowing oxygen to remove carbon and other elements that have a high affinity to oxygen...

Flexural Strength of Concrete by Partial Replacement of

The substitution of Basic oxygen furnace slag enhances the Flexural strength of M-25 concrete mix up to certain percentage After adding 15 Basic Oxygen furnace slag in the mix there is an increase of 1767 strength after 7 days and 1726 increase after 28 days...

Hydration properties of basic oxygen furnace steel slag

Jul 01 2010 0183 32 Basic oxygen furnace steel slag is the most common steel slag in China In this study the hydration properties of this kind of steel slag were investigated Steel slag was ground separately to 458 m 2 /kg as well as 506 m 2 /kg Different hydration conditions were set...

Performance of Replacing Traditional Natural Aggregates in

This study focuses on how the voids in mineral aggregate VMA and performance of dense grade asphalt concrete DGAC are influenced by the 100 replacement of coarse natural aggregates with basic oxygen furnace BOF slag...