CHEMISTRY, MINERALOGY AND MORPHOLOGY OF …
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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Research on the Properties of Steel Slag with Different …
This study compared the physical and chemical properties of steel slag produced by three different methods from four different steel mills. We compared the changes in mineral …
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Effect of steel slag as alkaline exciter on the properties of
Steel slag is a byproduct of the steelmaking process, with most steel slag in China being converter slag, a material rich in CaO [6].The presence of C 2 S and C 3 S provides binding properties, making it a potential cementitious material [7].Research has identified the interaction mechanism between steel slag powder and Portland cement in the early hydration stage, …
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Review Accelerated carbonation of steel slag: A review of …
The major cementitious components in steel slag, C 3 S and C 2 S, react with CO 2, providing a source of calcium for CaCO 3 formation. ... This paper reviews the classification and physicochemical properties of steel slag, as well as the factors that influence the carbonation efficiency of steel slag. In addition, the influence of carbonated ...
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Effect of Carbonation Treatment on the Properties of Steel Slag
Zhuang et al. used steel-slag-modified ultrafine blast furnace slag as an admixture to prepare high-strength concrete and studied its ultra-high temperature and self-shrinkage issues; the results showed that steel slag can effectively retard the main hydration heat release peak, decrease the accumulated heat, and reduce the growth rate of self ...
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High-temperature modification and air-quenching granulation of steel slag
To solve the problem of difficult utilization of steel slag, the liquid steel slag was modified and the air-quenching granulation process was carried out to make steel slag into a value-added end product: air-quenching granulated steel slag. The granulated slag was tested to analyze the variation rule of slag properties under different modification conditions. Based on …
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Physical properties and chemical composition of …
Steel slag is more wear-resistant than blast furnace slag. The main chemical composition of steel slag is basically similar to that of Portland cement clinker and blast furnace slag. The content of crushed steel slag varies …
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Activation technology of steel slag for concrete exposed to …
Steel slag is a byproduct generated during the steelmaking process. As the largest steel producer in the world, China produces over 100 million tons of steel slag annually, accounting for approximately 15–20% of crude steel production (Rui et al. 2022, Shi et al. 2022).After steelmaking, the slag is placed in a slag heap and subjected to magnetic separation to recover …
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Steel Slag—Its Production, Processing, Characteristics, and
Steel slag with high basicity and being cooled properly can exhibit cementing property. Ground steel slag has been used in several different cementing systems. The use of steel slag in these cementing systems results in some advantages over conventional cements. At the moment, most steel slag is being used as unbound aggregate for ashphalt ...
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A Review on the Carbonation of Steel Slag: Properties, …
1. Introduction. Steel slag is a by-product generated during the steelmaking process, with a production rate of approximately 10–15% of the crude steel quantity [].Large amounts of steel slag have been produced annually in many regions [].As a major steel producer in the world, crude steel production in China reached 1.01 billion tons in 2022 while producing more than 160 …
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Characterization of EAF Steel Slag Waste: The Potential …
However, the properties and behavior of the slag vary with different steel grades and steel manufacturers5. Since the main intention of this project is to recycle the EAF slag (obtained from Southern Steel Berhad, Penang, Malaysia) into green ceramic tile, it is essential to understand and investigate the properties of the EAF slag prior to the ...
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Influence of steel slag doping on the mechanical properties …
The main elements detected in the gel include Na, Si, Al, Ca, and O. Small amounts of Zr and Fe elements are also present, and the Fe and Ca elements prove the geopolymerization reaction in which SS is involved. ... Influence of steel slag on the mechanical properties and curing time of metakaolin geopolymer. Ceram. Int., 44 (13) (2018), pp ...
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The adsorption properties of steel slag-based porous …
Steel slag, which is a solid waste containing silica-aluminate minerals, is a suitable raw material for the preparation of geopolymers. While there have been some studies on the preparation of geopolymers using steel slag as a main raw material, these studies have focused on small amounts of slag and do not exceed 50 % by weight.
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Effect of surface modification on properties of steel slag …
The converter steel slag produced by Xiangtan Iron and Steel Group Co., Ltd. which has been aged for 6 months is selected, and the appearance, physical and mechanical properties, chemical composition, mineral composition, and total free calcium content are comprehensively analyzed to evaluate the feasibility of the steel slag as an aggregate of ...
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Physical and Chemical Properties of Steel Slag and …
The steel mill slag (SMS) production in converter furnaces is one of the main by-products generated during steel production. This waste material is usually composed of different metal oxides that ...
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Use of steel slag as sustainable construction materials: A review …
Main components of steel slag and improved properties of main products after carbonation and their utilization in green civil materials. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.) 5.2.1.
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An Overview on Utilization of Steel Slag as Road
The main u se for steel slag and air-cooled iron slag are as feed for cement kilns and as aggregates for asphaltic pave ment, fill, and road bases. Slag that has been air-cooled can also be ...
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Influence of steel slag powders on the properties of MKPC paste
The influence of steel slag powders on the properties of MKPC paste are studied. ... The main reason lies in the poor stability, low activity, low early strength and poor grindability of steel slag after the hot-splashing treatment [2].
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Influence of fineness on the cementitious properties of steel slag
Hydration heat of steel slag. Figure 2 shows the exothermic rates during the hydration of the three steel slags with different finenesses. The exothermic process of steel slag is very similar to that of cement which can be divided into five stages: (1) short rapid exothermic stage at which the first exothermic peak forms; (2) dormant period at which the exothermic rate …
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Mechanical properties of steel slag replaced mineral …
Application of industrial waste or by-product in highway construction is a major topic by researchers, government officers, and engineers these days (Dang et al. 2021). Steelmaking …
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A Review on Environmental Concerns and Technological …
The steel slag generally has primary crystalline phases, which can be seen in the ternary phase diagram shown in Fig. 21b. These crystalline phases tend to enhance the property of the glass–ceramic . Using steel slag improves physical properties like low water absorption, high corrosion resistance, and bending strength energy .
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2.1. chemical composition and mineral composition of steel slag The main chemical components of steel slag are CaO, SiO2, Fe2O3, Al2O3, MgO, MnO, FeO, fCaO, etc. With the difference of raw material, smelting technology and steel type, the composition of steel ... properties of steel slag in different steel mills fluctuate widely. 2) the early ...
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A Review on the Carbonation of Steel Slag: Properties, …
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 …
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Use of Steel Slag as an Alternative to Aggregate and Filler in …
In the last decades, steel slag has been analyzed in several studies: basic oxygen furnace (BOF) slag was integrated into a warm [13,14], porous hot mix asphalt, stone mastic asphalt (SMA-BOF), dense-graded asphalt concrete (DGAC-BOF) or used as the main constituent in hydraulic road binder . The results showed that the addition of steel slag ...
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Research on the Properties of Steel Slag with Different …
The drum slag had the highest density and water stability. The drum slag had the lowest porosity and the densest microstructure surface, compared with steel slags that other methods produce. The thermal stability of steel slag treated by the hot splashing method was relatively higher than that of steel slag treated by the other two methods.
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Semi-dry and aqueous carbonation of steel slag: …
Steel slag, an alkaline industrial by-product of the steelmaking process, constitutes 15–20% of crude steel output [1], [2].Annually, China produces over 100 million tons of steel slag [3], yet the utilization rate of steel slag remains below 30%, with the majority relegated to landfill disposal [3], [4].Consequently, China has accumulated more than 1.3 billion tons of steel slag, …
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Effect of Steel Slag Powder on the Hydration Characteristics …
Metals extraction and processing generate a substantial amount of industrial waste, posing significant environmental hazards. To reduce the accumulation of such waste, this paper incorporates steel slag (SS) into a lime (CH)–sodium sulfate (SN) composite-activated cementitious system. The mechanical properties, hydration products, and microstructure of the …
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Chemical, Mineralogical, and Morphological Properties …
duce steel slag as a byproduct is also required. This paper provides an overview of steel slag generation and a literature review on the chemical and mineralogical properties of steel slags. Moreover, the mineralogical and morphological char-acteristics of steel slag samples generated from two steel plants in Indiana were evaluated through XRD ...
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Properties and Uses of Steelmaking Slag – IspatGuru
BOF, CaO, EAF, MgO, Slag basicity, slag processing, Steelmaking slag, Properties and Uses of Steelmaking Slag. Steelmaking slag is an integral part of the steelmaking process. It is produced during the separation of the liquid steel from impurities in steelmaking furnace and is a non-metallic by-product of steelmaking process.
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Effect of CO2 wet mineralized steel slag-granulated blast furnace slag
The steel industry, known for its high energy consumption and resource utilization, generates steel slag (SS) as a major by-product, ... Hydration activity and mechanical properties of steel slag used as cementitious materials. Environ. Prog. Sustain. Energy, 41 (2021), 10.1002/ep.13756. Google Scholar [24]
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