DOI: 10.1016/j.jclepro.2022.132493 Corpus ID: 249416903; The mechanism of basic oxygen furnace steel slag retarding early-age hydration of Portland cement and mitigating approach towards higher utilization rate
Hence, in this paper, the applicability of Basic Oxygen Furnace Slag (BOFS) along with lime (L-BOFS) and cement (C-BOFS) binders in the S/S process was investigated. To this end, various contents of stabilizers up to 30% were added to a clayey soil specimen containing different concentrations of zinc, and then, a series of micro- …
ABSTRACT. The study presented in the paper evaluated the properties of pavement quality concrete (PQC) containing coarse aggregates made from aged and …
The use of steelmaking slag without chemical modification presents a deleterious effect on cement mechanical properties, due to the expansion caused by the presence of free CaO and MgO in the slag. This work deals with the modification of one basic oxygen furnace (BOF) slag with the objective of making it an appropriate …
In this study, aggregates in asphalt concrete were partially replaced by basic oxygen furnace slag (BOFS) in proportions of 45 wt.%, 55 wt.%, and 75 wt.%. The thermal performances of the specimens are discussed based on the thermal conductivity, emissivity, and the indoor and outdoor temperature measurements. Consequently, 75 …
Basic oxygen furnace (BOF) slag is an industrial by-product of iron and steel industries and accounts for 15–20% of steel production (Zhang et al. 2012, Xiang et al. 2016). ... The abrasion resistance of the slag concrete was found to be better than the abrasion resistance of conventional concrete. Deterioration of slag concrete was not ...
On the other hand, concrete mixtures were manufactured with basic oxygen furnace (BOF) slag aggregates and characterized mechanically and morphologically. …
This study explores the feasibility of developing carbon dioxide (CO2) fixation and utilization as supplementary cementitious materials (SCMs) using basic oxygen furnace slag (BOFS) through a high-gravity carbonation process. The developed process is considered as a cleaner approach, compared to …
Basic oxygen furnace (BOF) slag is an industrial by-product of the steel industry and has recently been investigated intensively for high-end applications other than road load and land fill. However, to be applied as a high-end raw material BOF slag lacks a quick and simple quantitative phase analysis method compared to the Bogue approach ...
This study proposes novel basic oxygen furnace (BOF) slag mortars formulated with tri-potassium citrate (TPC) activated BOF slag as binder and treated …
BOF slag is generated during the blowing of oxygen inside a basic oxygen furnace (Figure 1) to remove the undesirable elements (silica, calcium oxide, …
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, can significantly affect the composite properties when used as an aggregate or as a supplementary cementitious material in bound applications, such …
Fused cement clinker can be produced from molten basic oxygen furnace slag (BOFS) by way of a reductive thermochemical treatment. During the thermochemical treatment, oxidic iron is reduced to ...
Basic oxygen furnace (BOF) slag is a solid waste from the steel-making process route, also referred to as converter steel slag, annually produced in high quantities. The world crude steel production reached 1951 million tons in 2021, from which, around 246 million tons of BOF slag were generated, during the refinement of pig iron to raw steel ...
Geopolymer binders (GPBs) have gained attention as a sustainable alternative to ordinary Portland cement, offering potential environmental benefits. This research paper focuses on the development of geopolymer-based binders made from a combination of basic oxygen furnace (BOF) slag and fly ash (FA), replacing cement. …
The CO 2 reduction potential contributed by carbon mineralization of steel slags, including blast furnace slag, basic oxygen furnace slag and electric arc furnace slag, was estimated by ...
Supersulfated cement (SSC) is recognized as a cementitious material with low CO 2 emissions, consisting predominantly of ground granulated blast-furnace slag (GGBS) and a minor activator content. The production of GGBS production constitutes the primary source of CO 2 emissions in SSC. In contrast, carbon emissions from 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.
Before using basic oxygen furnace slag (BOFS) in any engineering application, it is important to determine its properties.
Basic oxygen furnace (BOF) slag negatively impacts ordinary Portland cement performance when replacement levels exceed 5%. This necessitates the exploration of alternative applications for the slag. Simultaneously, a high-volume slag utilization is desired to benefit slag recycling as supplementary cementitious materials.
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.
The construction industry has been facing scarcity of natural aggregates due to their higher utilization in concrete and mortar. The diminution of natural resources and the increasing demand of natural aggregates require alternative sustainable sources. Therefore, the viability of utilizing basic oxygen furnace slag (BOFS), produced as …
Basic oxygen furnace slag (SS) is prone to carbonation due to its alkaline properties. The combined use of carbonated basic oxygen furnace slag (CSS) with metakaolin (MK) as a composite ...
The review covers three main types of slag—basic-oxygen furnace (BOF), electric-arc furnace (EAF), and ladle furnace (LF) slag—and explores their diverse characteristics. While steel slag shows promise for enhancing the properties of concrete, further research is needed to develop scalable treatment methods ensuring volumetric …
To improve the pavement quality or increase the reuse of industrial waste, a number of novel pavement materials and aggregate gradations have been developed for asphalt concrete. An example is the application of basic oxygen furnace (BOF) slag to asphalt concrete. Shen et al. [1]. studied the properties of BOF slag.
Steel slag are of three types, they are classified as Basic Oxygen Furnace (BOF), electric arc furnace (EAF) and Ladle Furnace slag (LFS), detailed description is given below [8][9][10][11][12 ...
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 ...
Basic oxygen furnace slag is an significant environmental liability produced by the steel industry, considering the volume of material produced and its specific physical and chemical characteristics. To further understand the advantages and limitations of BOF slag aggregate and to establish its role in the replacement of natural sand in …
Before using basic oxygen furnace slag (BOFS) in any engineering application, it is important to determine its properties. The chemical composition, mineralogy, and physical properties of BOF slag are subject to large fluctuations as a result of different raw additives, different compositions of the molten iron used for producing …
2.1 Materials. This study employed a paving-grade asphalt binder with a penetration grade of 60–70 (VG-30), which meets the specifications listed in Table 1 of IS 73 (2013). The study utilised granite as the conventional aggregate, alongside electric arc furnace (EAF) and basic oxygen furnace (BOF) steel slag as the coarse and fine …
