Yildirim and Prezzi identify the chemical, mineralogical, and morphological properties of the various slag that is generated by the basic oxygen furnace (BOF) and EAF. According to them, the XRD patterns of BOF and EAF slags were very complex, with several overlapping peaks resulting from the many minerals that are present in the two …Web
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In this paper, basic oxygen furnace (BOF) slag was used as aggregate in porous asphalt concrete to improve the removal capacity of heavy metal. Road runoff solution with a …Web
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The basic oxygen furnace (BOF) slag, important slag generated during the processing of the pig iron into steel, is considered a solid waste, non-hazardous and subject to recycling. It presents phases with cementitious properties such as Ca 3 SiO 5 (C 3 S), Ca 2 SiO 4 (C 2 S), Ca 4 Al 2 Fe 2 O 10 (C 4 AF) and Ca 2 Fe 2 O 5 (C 2 F).Web
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Basic oxygen furnace slag is considered a potential material for the replacement of natural aggregate in Portland cement concrete due to its similar physical characteristics. Therefore, in the present work, the slag was analyzed by Nitrogen sorption porosimetry, elemental analysis, mineralogical analysis, and volume stability. On the …Web
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The mining industry generates large quantities of waste as tailings. The tailings have an adverse environmental impact. This study explored the utilization and stabilization of Barberton gold mine tailings (GMTs) and basic oxygen furnace slag (BOFS) to synthesize geopolymers for other applications. The geochemical, chemical, …Web
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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].Web
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The type of steel furnace slag (SFS), including electric arc furnace (EAF) slag, basic oxygen furnace (BOF) slag, ladle metallurgy furnace (LMF) slag, and argon oxygen decarburization (AOD) slag ...Web
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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 …Web
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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 …Web
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Abstract. In the basic oxygen furnace (BOF) steelmaking process, large quantities of slag are generated, which are sometimes used as by-products. However, in many cases, BOF slag is landfilled and thus seen as waste. Typically contained elements are chromium, manganese, and phosphorus aside from the main slag formers, such as …Web
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Abstract. Steel slag, in particular, basic oxygen furnace slag (BOF-S)-a by-product in the steelmaking industry-is an environmental challenge due both to the large volume of the material that is ...Web
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It is generally agreed that aqueous carbonation of basic oxygen furnace slag (BOFS) is a promising and effective strategy to sequestrate CO 2 and enhance the slag properties for use as a construction material. However, the handling of wastewater produced in the aqueous carbonation route is still a challenge. This work investigates the impact of …Web
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In addition to CO 2 emission, basic oxygen furnace slag (BOFS) is the by-product generated from the processing of iron to steel. However, the recycling of BOFS for construction applications is limited by its high free lime content, which may cause expansion when hydrated (Belhadj et al., 2014, Brand and Roesler, 2015, Monshi and Asgarani, …Web
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The uses of byproducts such as blastfurnace slag and steel slag [electric arc furnace slag and basic oxygen steel (BOS) slag and ground granulated blastfurnace slag] have long been established in ...Web
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It may be concluded that basic oxygen furnace slag can be used as a concrete aggregate if the grading of fine slag aggregates coarsened by its slow hydration is improved by …Web
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In this paper, basic oxygen furnace (BOF) slag was used as aggregate in porous asphalt concrete to improve the removal capacity of heavy metal. Road runoff solution with a copper concentration of 0.533 mg/L and a zinc concentration of 0.865 mg/L was artificially synthesized.Web
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Basic oxygen furnace slag is considered a potential material for the replacement of natural aggregate in Portland cement concrete due to its similar physical characteristics. Therefore,...Web
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Basic oxygen furnace: Basic oxygen furnace slag: Cement replacement, bacterial community succession, cement mortar : Open in a separate window. This review focuses on the previous research works on the utilization of varied steel waste in the steelmaking industry. Moreover, cost analysis and energy consumption will be discussed …Web
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Basic Oxygen Furnace (BOF) slag has many prismatic angles, is massive, and has a high hardness that meets the requirements of the aggregate used in asphalt concrete. BOF has a higher proportion of CaO but a lower proportion of SiO 2 than natural (gravel) aggregate (NA) because CaO is a lipophilic molecule while SiO 2 is a hydrophilic …Web
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This study evaluated the effects of electric arc furnace (EAF) and basic oxygen furnace (BOF) slags on the fatigue behavior of asphalt mixes. After the initial evaluation of the properties of steel slags, nine sets of laboratory asphalt mixes were prepared.For each set, different proportions of limestone coarse aggregates (≥2.36 mm) …Web
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Abstract. This chapter reports the feasibility of employing steel slag-based aggregates and binders as an alternate for the conventional concrete making materials and their effect on fresh, mechanical and durability properties of concrete. The ladle furnace slag (LFS), basic oxygen furnace slag (BOFS) and electric arc furnace slag (EAFS) …Web
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13.5.1 Basic oxygen furnace slag (BOFS) BOFS is a slag from BOFs, also called converters. The slag is formed during the conversion of the hot metal from the blast furnace into steel in a BOF. In this process, the casting is injected with oxygen to remove carbon and other elements that are highly reactive with oxygen.Web
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In addition to the primary material (molten steel), the so-called "Basic Oxygen Furnace slag" (or "BOF") derived from the combination of the impurities with lime and dolomite, is also tapped from ...Web
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In this paper, the influence of reaction parameters including solid to liquid ratio, CO 2 flow rate, temperature, volume of water and carbonation time on aqueous …Web
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The primary purpose of this research was to evaluate the effect of hydration and silicone resin on material characteristics of Basic Oxygen Furnace (BOF) slag and performances of BOF slag asphalt mixture.BOF slags modified by different methods were prepared. Surface textures, elements distributions, pore characteristics and volume …Web
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In this paper, a new method of basic oxygen furnace (BOF) slag component modification with a regulator was studied. The main mineral was designed as C 4 AF, C 2 S and C 3 S in modified BOF slag, and the batching method, mineral compositions, hydration rate, activation index and capability of resisting sulfate corrode also were studied. XRD, …Web
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A type P⋅I Portland cement conforming to GB/T-175 (similar to CEM I) with a specific surface area of 0.34 m 2 /g and a density of 3.2 g/cm 3 was used. Basic oxygen furnace slag (BOFS) (Xiangtan Iron & Steel Co. Ltd) was ground into powder with particle size smaller than 200 μm.Web
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Steel slag has been studied for many uses, such as iron recycling [12], aggregates for concrete [13], mineral admixture for cement or concrete production [14], and mineral adsorbents for CCS by mineral carbonation [15,16]. Basic oxygen furnace (BOF) slag is one of the main types of steel slag.Web
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The steel production shows tremendous increase all over the world and the enormous production of steel has subsequently led to huge amount of basic oxygen furnace (BOF) slag generation which causes several environmental issues.Previous studies generally considered the use of BOF slag as aggregate, cement replacement material, …Web
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A factorial study was conducted on basic oxygen furnace slag from a steelmaking industry with the aim of systematically identifying the individual and joint effects of the operating parameters (total pressure, CO 2 concentration in the gas phase and temperature) on the CO 2 sequestration yield of a direct aqueous carbonation …Web
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26 rowsBasic oxygen furnace slag is considered a potential material for the replacement of natural ...Web
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Basic Oxygen Furnace slag, the main by-product of steelmaking process, presents still low utilization rate due to its limitations as a partial replacement for cement.The previous fundamental research demonstrated that the slag exhibits the modulated composition and improved property via reacting with the modifier at high …Web
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Basic oxygen furnace (BOF) slag is the by-product of the basic oxygen converter steel-making slag. Per each ton of steel generation, 90–110 kg of BOF slag is …Web
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