Chemical composition of steel slag (%) Source publication. ... In contrast, steel slag powder acts as a binding material and can replace approximately 20% of cement. In both cases, the final ...
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Steel slag, a by-product of the steelmaking process, exhibits a complex chemical composition that varies depending on the specific production methods and raw materials used. Predominantly, steel slag is composed of calcium oxide (CaO), silicon dioxide (SiO2), and iron oxides (FeO, Fe2O3), with CaO content ranging from 10% to 54%, SiO2 from 10% to 44%, and …
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The disparities in chemical composition between steel slag powder (SSP) and ordinary Portland cement primarily lie in SSP's higher iron oxide content and a small quantity of f-CaO and f-MgO. ... When Steel Slag Powder (SSP) is incorporated as an SCM in concrete, there is a tendency to improve the workability of concrete. However, certain issues ...
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basic-oxygen-furnace steel slag (BOF C) and electric-arc-furnace stainless steel slag (EAF S) were studied with emphasis of the following aspects: chemistry (X-Ray Florescence (XRF)); …
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Since the mineral composition of steel slag (consisting of C 3 S, C 2 S and RO phases) ... The industrial grade monopotassium phosphates used in this research were from Lianyungang Geli Chemical Company (Lianyungang City, China). ... When steel slag powder content was 10% or 20%, the 60-day compressive strength of MKPC specimens under water ...
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The urgent need to address the utilization of carbonized waste residue in building materials has gained significant attention. Numerous studies have demonstrated that steel slag powder reacts with carbon dioxide, leading to the formation of calcium carbonate and amorphous silica gel [21], [22], [23], [24].Chen et al. [25] conducted a comparative analysis of the chemical …
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Steel slag (SS) is a solid waste produced during steel manufacture, taking about 15–20 % of global crude steel by mass [1].Based on statistic released by the World Steel Association, its amount could have reached over 280 million tons in 2023 [2].In regions, such as Europe and the United States, more than 80 % of SS has been properly reused, while in comparison for the …
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blast furnace slag fine powder for concrete.3) When steel slag is used, the composition of effluent from the slag becomes a problem because it can adversely affect the quality of groundwater, etc. Inci-dentally, it is known that steel slag, which remains in molten state under high temperatures, contains little amounts of harmful organic
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Steel slag's main composition is CaO, Al 2 O 3, SiO 2, and MgO, which is similar to the raw materials for the traditional construction of tiles; therefore, steel slag can be used as …
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Steel slag powder is a byproduct of the steelmaking process. It is formed during the conversion of iron into steel in a basic oxygen furnace or an electric arc furnace. ... Overall, the main difference between silica fume and slag powder is their origin and chemical composition. Silica fume is a byproduct of the silicon metal industry, while ...
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Steel slag powder (SSP) is primarily composed of various metal oxides in solid solution ... In terms of chemical composition, WGP and SSP complement each other in SiO 2 and CaO. The combination of the two results in a material rich in SiO 2, CaO and Al 2 O 3, indicating potential as a substitute for OPC.
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Therefore, this study optimizes the industrial refining slag of 38CrMoAl steel with a high-CaO content refining slag at 1600 °C. Through the steel-slag reaction, the high-melt-point inclusions in the steel are converted into liquid calcium aluminate to control the type of inclusions, reduce the number and size of the nonmetallic inclusions in the steel, improve the degree of …
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The slag powder passed through the 80-mesh standard sieve is 2.17~2.2 g/cm3 for open hearth furnace slag, about 1.62 g/cm3 for electric furnace slag, and about 1.74 g/cm3 for converter slag. Since steel slag is dense and …
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The basic chemical composition of steel slag is silicate. ... In contrast, steel slag powder acts as a binding material and can replace approximately 20% of cement. In both cases, the final ...
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The finest slag is achieved by passing it to filtration with a sieve number 200. Table 2 presents the chemical composition of steel slag, PVC powder, and cement as determined by X-ray fluorescence (XRF) analysis.
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In different types of steel slag, the chemical compositions of oxides and the concentration of other minor components are highly variable and change from batch to batch, even in one plant...
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The main chemical composition of steel slag powder for test comprises 2 %～8 % metallic iron, 3 %～10 % magnesium oxide4, 0 %～60 % calcium oxide and 1 %～8 % manganese oxide. The main component of calcium sulfate whisker is anhydrous gypsum, and the CaSO 4 content accounts for more than 98 %.
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Studies have shown that the mineral composition of steel slag is similar to that of cement [3, 4] and has potential cementation and volcanic ash properties when ground into very fine steel slag powder. Due to the large fluctuation of the chemical composition of steel slag, as well as the difficulty of grinding and slow hydration, its large ...
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The unit weight of slag varies within a range of 1600 kg/m 3 to 1920 kg/m 3 with a specific gravity between as high as 3.6 (Hainin et al., 2014).
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The steel slag powder also reduces the diffusion coefficients, indicating increased chloride binding capacity associated with the FeO content. ... Thus, the current research contributes to the comprehension of the influence of steel slag chemical composition in the corrosion process of reinforced concrete, leading to more assertive decision ...
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Since the 1990s, the stockpile of steel slag in China has reached > 2 billion tons, causing significant pollution to land and water resources. 1,2,3 The chemical composition and mineral phases of steel slag are similar to cement, and converting steel slag into slag micro-powder 4,5,6,7 can achieve large-scale resource utilization of steel slag ...
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Chen et al., [29] found that acetic acid could activate the hydration properties of steel slag powder to a certain extent and improve its strength. ... and the microscopic expansion characteristics of steel slag, chemical composition of steel slag, and macroscopic mixture performance were Combining the micro-expansion characteristics of steel ...
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In this study, steel slag powder (SSP) and SP by-products from manufactured sand were employed with a total dose of less than 30% as a replacement for cement. ... Synthesis of steel slag ceramics: chemical composition and crystalline phases of raw materials. Int. J. Miner. Metall. Mater., 22 (2015), pp. 325-333, 10.1007/s12613-015-1077-z. View ...
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Chemical Composition of Steel Slag. Table 1 shows the extensively collected data from the literature covering five years. ... The object of accelerated carbonation in previous studies was mainly steel slag powder with a particle size of 0.05–1 mm [40,41,43,125,128].
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The chemical composition of steel slag exhibits remarkable diversity, primarily com- ... in steel slag powder content under a certain water consumption condition, resulting in the.
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At this point, the primary mineral composition of steel slag includes C 2 S, C 3 S, a fully vitrified phase RO phase, calcium hydroxide (Ca(OH) 2 ), and small amounts of free …
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Steel slag's main composition is CaO, Al 2 O 3, SiO 2, and MgO, which is similar to the raw materials for the traditional construction of tiles; therefore, steel slag can be used as a raw material in the preparation of …
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The mineral dry separation method is a technique for the comprehensive utilization of steel slag. In this process, two products, i.e., steel slag powder with high activity (reaches 75% of the cementitious activity of pure cement) and inert mineral material, are obtained by crushing and separating steel slag. 12,13 If wet magnetic separation is adopted, the active minerals will …
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The chemical composition of the steel slag powder was determined by wavelength dispersive X-ray fluorescence spectrometer (XRF), and the instrument model is ARL Perform'X 4200. The mineral composition in different steel slag powders was determined by X-ray diffraction (XRD). The instrument model is D8 discover and the target is Cuk.
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Table 2 shows typical examples of the chemical composition of steel slag in different countries. The main components of steel slag are CaO, Fe, SiO 2, MgO, and MnO. ... popularized the technology of using steel slag powder; built 10 demonstration projects using steel slag and iron slag for cement and composite powder concrete: Beijing, Tianjin ...
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