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 …

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)); …

The extent to which these phases affect lubrication and heat transfer properties of the slag depends on the chemical composition of the original powder. With such a large number of chemical components in the mould powder, it is difficult to compare performance of the different powders on a compositional basis. ... Low carbon aluminum killed ...

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 ...

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 …

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 ...

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 ...

In this paper, steel slag powder was used to replace part of the cement in road concrete, and group tests were carried out on coarse aggregates with different water–cement (W/C) ratios ...

Steel slag sourced from Zhongtian Iron and Steel Company was used in this study. The chemical compositions, as established by X-ray fluorescence (XRF), are presented in Table 1, and the XRD pattern of steel slag is illustrated in Fig. 2. The steel slag exhibited a specific surface area of 464 m 2 /kg and a density of 3.64 g/cm 3.

Steel slag (SS), as a solid waste from the bulk iron and steel metallurgical industry, is similar to cement clinker in terms of its main mineral components and chemical composition, which contains large amounts of silicate minerals (C 2 S, C 3 S) and small amounts of aluminates (C 3 A) and ferric aluminates (C 4 AF). These minerals confer hydration and reactivity to SS, …

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 …

On this basis, steel slag and slag composite micro powder (SSCM) technology was proposed, which realized the high added value and utilization rate of steel slag in industrial applications. ... The chemical composition and surface micromorphology of the samples were investigated by X-ray fluorescence spectrometry and scanning electron microscopy ...

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 ...

The primary components of iron and steel slag are limestone (CaO) and silica (SiO 2). Other components of blast furnace slag include alumina (Alsub>2O 3) and magnesium oxide (MgO), …

One of the most important ways of utilizing steel slag is as the aggregate in road construction. It has been stated that steel slag can replace coarse aggregate (whose particle size is larger than 2.36 mm) when using steel slag in asphalt mixture [4].However, the coarse aggregate is porous, containing a lot of free calcium and magnesium oxides, which would …

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 ...

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.

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.

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 …

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 ...

The micro-morphology and micro-composition of the carbonated full steel slag blocks were characterized using an FEI Talos F200x transmission electron microscope (TEM). Ethanol was added to the steel slag powder to ensure thorough mixing, followed by10 …

The steel slag powder used in this study was obtained from the steel slag produced during the converter steelmaking process, sourced from the Wuhan Iron and Steel Company Limited. The main chemical composition and particle size of the steel slag powder are shown in Table 1. The phase results of the steel slag are shown in Fig. 1.

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 ...

us end-use consumers. Although the chemical composition of slag may remain unchanged, physical properties vary widely with the changi. e of steel produced. Pertinently, the concerns …

The results show that the composition of steel slag produced by different processes is similar. The main active substances of other processed steel slags are dicalcium silicate (C2S), tricalcium silicate (C3S), CaO, and …

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.

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 ...

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 ...

Steel slag is a by-product of the steel industry and usually contains a high amount of f-CaO and f-MgO, which will result in serious soundness problems once used as a binding material and/or aggregates. To relieve this negative effect, carbonation treatment was believed to be one of the available and reliable methods. By carbonation treatment of steel slag, the …

Steel slag is considered to improve the road performance of cold mixed asphalt (CMA) due to its superior physicochemical characteristics. To realize the potential application of steel slag in CMA pavement, the alkalinity, hydration activity, pore characteristics, and three-dimensional (3D) morphology were quantitatively characterized and evaluated based on the X …