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Factors such as poor volume stability and low early strength limit the application of steel slag in cementitious materials. In this paper, steel slag was indirectly carbonated by wet process, and part of cement was replaced by steel slag to prepare cementitious materials. The main conclusions are as follows. (1)
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The composition of steel slag is variable and may depend on, among others, the size of fraction. The main primary solid phases consist of a Fe 2 O 3.The main mineral compounds are metallic iron (dicalciumsilicate, dicalciumferrite) [].The two major mineral phases present in the steel slag samples were hematite Fe 2 O 3 and lime (CaO), content of ~34 wt % and ~27 wt %, …
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Purpose The rapid growth of the global population, along with increased industrial and agricultural activities, has resulted in a significant rise in the production of both organic and inorganic waste. The rational management and biotransformation of this waste has become essential to create stable, humus-rich and hygienic compost. This study aims to evaluate the …
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If the efficient separation of P from steelmaking slag is achieved, the obtained P can be used as the raw material for phosphate products, and the P-removal steelmaking slag can be reused as a ...
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Higher equipment maintenance and replacement cost significantly limit the use of steel slag as supplementary cementitious material and cement raw material. Another recycling option is to …
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This paper reviews the use of industrial waste material 'copper slag' in the construction work as a replacement of cement, sand and aggregate to reduce the cost of construction and simultaneously ...
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Typical applications of steel slags are sealing aggregate (skid resistant), asphalt aggregate, base, sub-base, construction fills, subsoil drains, grit blasting and waste water treatment. The …
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Steel slag is a by-product obtained through the separation of molten steel from impurities in steel-making furnaces. It can be produced by different types of furnaces (blast, basic oxygen, electric arc, ladle furnaces). The reuse of metallurgical slags in road pavements can pursue aims of recycling and environmental sustainability. Based on the extensive literature, …
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The utilization of industrial waste as a partial replacement for raw materials in the construction sector saves precious landfill space and reduces the need for the mining of conventional raw ...
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Coal slag, steel slag, copper slag, and MSW slag are the common by-products generated from various industrial processes and waste treatment which could be promising for reuse. The main composition of the coal gasification slag was found to be SiO 2 (47.78 wt%) (Fu et al., 2022). The specimen with 10 % cement substitute by coal gasification slag ...
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These slag materials can be possible to use in construction industry effectively. In this paper, a thorough review has been carried out on the work done by various researchers on the use of steel ...
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The C-(A)-S-H presents a combination of general long-range disorder and short-range order for the arrangement of atoms in the lattice (Zhang et al., 2017; Yang and White, 2021) when some non-ferrous slag was used. Incorporation of the non-ferrous slag would usually contribute to the formation of higher density C–S–H gels (Sun et al., 2022b).
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In addition, metallurgical waste slag can be used in place of cement. This results in the effective disposal of bulk solid waste and improves the economic benefits of these construction materials. ... most relevant literature shows that a measure of low-quality metallurgical waste can be used as a cementing material or an aggregate in CLSM ...
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LSS is a byproduct resulting from the smelting process of metallic lead, which involves high-temperature melt quenching in water, similar to other materials such as fly ash [9], steel slag [10], and GGBFS [11].The material under consideration comprises a certain quantity of amorphous calcium-aluminum-silicate glassy phase, which exhibits cementitious behavior …
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Piles of steel slag, a solid waste generated from the iron and steel industry, could be seen due to no utility found for the past century. Steel slag has now gained much attention …
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Nickel slag is one kind of nickel ore smelting waste after the combustion process. Production of nickel slag PT. Antam Pomalaa Kolaka Southeast Sulawesi province during the period 2011-2012 period ...
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Thus, the waste material steel slag have huge amount of oxides of calcium (Ca), sulfur, and silica [5, 11]. The compound CaO is a pozzolanic material that gives strength to cement, lime, and fly ash, and when mixed with soil in road construction it led to being utilized as a material for soil stabilizing.
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The previous chapter covered the formation of liquid slag as part of electric arc furnace (EAF) steelmaking and its complex and highly variable chemistry. This chapter discusses the chemical and physical properties of slag in its solidified state, trace elements in slag, changes in slag due to weathering and wear, and the potential release and environmental transport of …
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Reprocessed slag can replace other more costly ingredients used to make building materials. Recycling slag minimizes waste and disposal …
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Steel slag is a solid waste derived from the steel-making process, which accounts for approximately 15% of the total crude steel output (Furlani et al., 2010; Pang et al., 2016).
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Analyzed materials: a) cement (CEM I), b) municipal solid waste incineration (MSWI) raw slag and c) ground slag (authors' photo). The second material used for tests was slag ( Figure 3 b) which was generated as a side effect of the thermal processing of municipal wastes.
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Slag produced by this industry was widely used in the area to protect from lakeshore erosion; as a railroad and road grade material; as a structural foundation; and to fill low-lying areas, where it was often mixed with other solid waste, such as fly ash, construction debris, dredged sediments, and industrial wastes (Bayless and Schulz, 2003 ...
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There is an urgent need for sustainability in the steel and construction industries [21].The use of construction materials from upcycled waste resources is important to enhance the sustainability of the construction industry [22], [23].Upcycling steel slag into construction materials helps reduce the amount of waste in landfills and the carbon footprint of the construction industry.
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Steel slag is an inorganic solid waste generated during the steelmaking process. In terms of chemical composition, it is primarily composed of oxides of Ca, Si, Fe, Al, and Mn, along with some alkaline substances, exhibiting strong alkalinity (Mingming et al., 2023; Wang et al., 2023d; Xing and Wang, 2023).Structurally, it possesses characteristics such as loose porosity …
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What is slag? Steel is a material that is used in most building projects, from your local school or factory to skyscrapers in the world's major cities. Steel is made in a giant oven at very high temperatures from natural raw materials like iron ore and limestone. The steel making process doesn't use all of this material, and the bits left ...
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the important improved method and critical problems for steel slag as absorbent materials. 1. Introduction Reducing, reusing and recycling are the main methods to deal with solid waste. Steel slag is a kind of solid waste produced in the process of steel production. For every 1 ton of steel produced, 125-140 kg steel slag will be produced.
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Industrial by-products such as ash, marble and glass dust, silica fume, out-of-use tyres, recycled volcanic ash and blast furnace slag are generally used as materials for the production of recycled self-compacting concrete [10,11,12,13,14,15,16]. The widespread use of these waste materials is mainly due to their particle size.
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The potential use of nickel slag waste as a road pavement material will be greatly influenced by physical and chemical properties, so chemical testing in laboratory is necessary. The physical form of nickel slag that resembles natural rock, causing the potential as a road material for surface layers and foundation layers is very possible.
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In order to produce environmentally acceptable construction materials, these waste slags have been used as a partial and full replacement of cement, fine and coarse aggregate with or without ...
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Steel slag is a waste material produced during the process of steel making. For many years, a large amount of steel slag was deposited in slag storing yards, occupied farmland, silted rivers and ...
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