Performance Evaluation of Basic Oxygen Furnace (BOF) Slag as …

Different steel slag is generated from different iron industries based on the furnaces used i.e. Blast furnace slag, Basic oxygen furnace slag, electric arc furnace slag, etc. The generation of slag is currently creating a greater nuisance in managing them, but after much research, it has been proven a suitable construction material.

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Moviator

Moviator is a Finnish company specializing in the manufacturing of crushers, fine grinders and other slag processing equipment. We have our own slag processing line in Koverhar, Finland where we are handling BOF slag. OUR SPECIALITIES + EAF and BOF slag material crushing and fine grinding. After crushing the slag material the magnetic iron can ...

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Basic Oxygen Furnace Slag (BOFS) Graded …

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, etc. The molten slag is cooled and solidified into basic oxygen …

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Improving the early reactivity of activated basic oxygen furnace slag

Basic oxygen furnace slag (BOF slag), also known as Linz-Donauwitz slag, is an industrially by-product of the steel industry and produced during the converter process. In this research we have investigated the effect of grinding aids and particle fineness on the hydration of potassium citrate activated BOF slag. It was investigated the effects of five different grinding aids on the ...

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(PDF) Air granulated basic Oxygen furnace (BOF) slag …

Air granulated basic Oxygen furnace (BOF) slag application as a binder: Effect on strength, volumetric stability, hydration study, and environmental risk January 2023 Construction and Building ...

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Geometric Characteristics of BOF Slag Coarse Aggregate and its

According to the different steelmaking processes, steel slag can be classified into three types: Electric arc furnace (EAF) slag, basic oxygen furnace (BOF) slag and ladle furnace (BF) slag. The large capacity of steel slag can meet the needs of aggregates for road construction, and it has good mechanical properties and high alkalinity [12,13].

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Activation of BOF slag with dipotassium hydrogen phosphate: …

Basic Oxygen Furnace (BOF) slag, a by-product of the Linz-Donawitz steelmaking process, accounts for approximately 70 wt% of total steel slag production, amounting to about 180 million tons annually [[1] ... was thoroughly mixed with the samples using an XRD-Mill McCrone (RETSCH) operating at 75 % speed for 5 min to ensure a homogeneous ...

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Reactivity of BOF slag under autoclaving conditions

However, there are certain properties of the BOF slag that limits its use as supplementary cementitious material (SCM). The presence of free lime and free MgO can cause large volume expansion when hydrating [2], [3] and it has also low hydraulic reactivity as shown by previous isothermal calorimetry experiments [4], [5], [6].The low reactivity of BOF slag is …

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BOF Slag Pot

SKU: N/A Categories: Accessories, Basic Oxygen Furnace, Freight Car Loads, Scene Finishers Tags: Basic Oxygen Furnace, HO Scale, N Scale, S Scale, Slag Pot, Steel Mill Modeling. Description Additional information Description. Prototyped off of a USS BOF Slag pot, this is the perfect addition to your BOF facility, or at the lime station.

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9--Application and Breakthrough of BOF Slag Modification …

Accordingly, removing f-CaO to prevent BOF slag from expansion is the key for slag utilization. Despite many post-treatments of BOF slag having been tried, none of them have proved to …

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ITP Steel: Recycling and Reuse of Basic Oxygen Furnace …

First, MTU researchers seek to increase the efficiency of iron unit recovery from BOF/BOP slag. Second, the project calls for the development of value-added feedstocks for steel mill furnaces …

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BOF and EAF Steels: What are the Differences?

However, in the long run, these cost differences even out (WikiInvest) – so what is the primary tradeoff between setting up a BOF mill and an EAF mill? The answer lies in capital costs. For a BOF firm, the average cost per ton of capacity is $1,100, while the cost for an EAF minimill per ton of capacity is only $300.

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BOF Slag Glass-ceramics Prepared in Different Atmospheres …

BOF slag is a kind of steelmaking wastes, and some of them has been used in the cement industry,2–5) ... of BOF slag (–80 mesh, grinded by the cement ball mill with 5 kg capacity), fly ash (–100 mesh), quartz sand (–100 ... (jaw crusher, with 5–30 mm crushed gap), ball milling (ND8-4L, NDTZ, China, 360° rotating ...

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Improving the early reactivity of activated basic oxygen furnace …

triethanolamine is the best grinding aid in supporting the hydration of BOF slag. controlling the particle fineness of BOF slag plays a major role in its hydration. including …

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Classification of BOF Slag by Data Mining Techniques According …

In the process of converting pig iron into steel, some co-products are generated—among which, basic oxygen furnace (BOF) slag is highlighted due to the great amount generated (about 126 kg of BOF slag per ton of steel grade). Great efforts have been made throughout the years toward finding an application to minimize the environmental impact …

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Performance Evaluation of Asphalt Mixtures with EAF …

third cone crusher crushing process, and the production yield was 95%. This is a significant improvement in the productivity of slag aggregates compared to the previous 12.5% yield of 0 − 13 mm slag aggregate when using only the jaw crusher, firstly, and the rod mill grinding, secondly.

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Classification of BOF Slag by Data Mining Techniques According …

In the process of converting pig iron into steel, some co-products are generated—among which, basic oxygen furnace (BOF) slag is highlighted due to the great amount generated (about 126 kg of ...

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Air granulated basic Oxygen furnace (BOF) slag application as a …

The current study investigates the potential of air granulated BOF slag as an OPC replacement in the mortar and compares it with conventional cooled BOF slag. Moreover, the …

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Performance Evaluation of Asphalt Mixtures with EAF and BOF …

A jaw-crusher, firstly, a rod mill grinder, secondly, and finally a hydraulic cone crusher were sequentially applied to the aggregates of 13 mm - 5 mm and below 5 mm. ... Wu CM, Du JC (2009) Laboratory investigation of basic oxygen furnace slag for substitution of aggregate in porous asphalt mixture. Construction and Building Materials 23(1 ...

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Enhancing Mechanical Properties of Expansive Soil Through BOF Slag

This study investigates the stabilization of expansive soil using basic oxygen furnace (BOF) slag, an eco-friendly steel by-product, as an alternative to conventional stabilizers like ordinary Portland cement. By evaluating varying concentrations of BOF slag and lime as an activator, the research aims to improve the soil's mechanical properties, addressing issues like …

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Properties and Uses of Steelmaking Slag – IspatGuru

The slag generated in the basic oxygen furnace (BOF) and electric arc furnace (EAF) is of basic nature while the slag is of acidic nature in induction furnace because of the use of silica ramming mass as the lining material.

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Comprehensive Analysis of Steel Slag as Aggregate for Road

Blast Oxygen Furnace (BOF) slag represents one of the largest waste fractions from steelmaking. Therefore, slag valorisation technologies are of high importance regarding the use of slag as a secondary resource, both in the steel sector and in other sectors, such as the construction or cement industries. The main issue regarding the use of BOF slag is its …

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Mineral Carbonation of Basic Oxygen Furnace Slags

Recycling 2022, 7, 84 4 of 16 Figure 1. Elemental distribution maps of the original slag sample. At the bottom left of the selected area, a slag particle is visible whereas at the top

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A Bogue approach applied to BOF slag

chemical composition of BOF slag and OPCs with high CaO and SiO. 2. concentration of >35 and >10 wt%, respectively [14]; iii) the similar mineralogical composition of BOF slag to OPCs, since the major phases of BOF slag are C. 2. S and . ORIGINAL ARTICLE. Abstract . An industrial by-product of the steel industry called basic oxygen furnace (BOF ...

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(PDF) BOF Slag as Binder: Strength and Stability Effects

Basic Oxygen Furnace (BOF) slags are by-products of the conversion of pig iron to steel. They mainly contain C 2 S, C 2 F, Fe 1Àx O, CaO, Ca (OH) 2 and CaCO 3. According to their …

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Global Slag Presentation 2024

BOF, EAF and LF steel slag A A B. Processing line for 700.000tpa in Raigarh, India. Magsort Slag Process Schematic 4 Addition of Magsort Crusher for fines increases valorisation rate for steel slag A Steel Slag 1 Screen 200mm 4 Primary Crusher ... Approx. 5-15% of steel slag Value: 100-170 €/tn (mill scale) Magnetics <2mm 11.

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Hydration of potassium citrate-activated BOF slag

SEM image of BOF slag after milling (on the left) and corresponding color phase map (on the right) generated with PARC software based on the EDX data.

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The reactivity of hydrothermally activated basic oxygen …

The investigated BOF slag was derived from the Tata Steel plant in IJmuiden, . The NetherlandsFor the hydrothermal treatment a slurry was prepared at a w/s of 0.3.

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A Bogue approach applied to basic oxygen furnace slag

BOF slag is often inaccurately characterized in terms of phase composition by RQPA due to multiple reasons: i) the large number of phases (>5) and resulting peak overlap, ii) some phases may show preferred orientation (i.e. portlandite), iii) multiple polymorphs for some phases may be present (i.e. C 2 S) [24], iv) impurities within phases may have effect on the …

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BOF Steel Slag: Critical Assessment and Integrated Approach for

Due to the cementitious phases of C2S and C3S have been hydrated during the wet milling process to form Ca(OH)2 and C-S-H in the BOF slag mud, the cementitious activity of BOF slag mud is much ...

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