Modification of magnesium phosphate cement with steel slag powder and ground blast furnace slag: Mechanism of hydration and electrical conductivity ... etc.) with good electrical conductivity, generated at a ratio of 12–20 % of the total steel production [45 ... the acidic component, was of analytical grade and supplied by Shanghai Haohong ...
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Steel slag is an industrial by-product arisen from the steel manufacturing process, the amount of which is estimated to be about 12–20% of total steel production [1, 2].In 2022, statistics show that 1.013 billion tons of steel were manufactured in China in which approximately 0.162 billion tons of steel slag was produced.
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Guilin Hongcheng as a slag mill manufacturer, today for you to introduce the slag powder process technology scheme. This scheme is included in the national catalogue of advanced applicable technology and equipment for the comprehensive utilization of industrial resources, and is suitable for the production of slag cement powder by using slag solid waste.
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The findings revealed that the addition of seashell powder and calcined slag improved the material's toughness and promoted the formation of cementitious products such as carboaluminate phases, C-A-S-H gel, and ettringite, with a 15% mixture of seashell powder and calcined slag increasing the compressive strength ratio of SCSC to ordinary ...
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This is an article in the field of metallurgical engineering. As a solid waste produced in the process of steelmaking, the steel slag has the characteristics of large output, high temperature, complex chemical composition and poor stability. The resource utilization rate of steel slag in China is less than 30%, resulting in the waste of valuable resources contained in …
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[27, 28] According to the difference in production technology, steelmaking can be divided into long processes and short processes. ... Sun et al. used steel slag to fix carbon, fully mixed steel slag powder with water at a mass ratio of 1:2, and introduced CO 2 with purity of 99.5% into mortar for 6 h to obtain carbonized steel slag, ...
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The applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water content, and pore structu...
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Because of the poor grindability of slag, a high requirement is placed on the fineness of the product. Therefore, the power consumption associated with grinding becomes the most important factor in the cost control of ground granulated blast furnace slag production and reflects the level of slag powder production technology [13], [14], [15].
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Apart from the microwave power and irradiation time, which significantly influence the early strength of the asphalt mixture (Wang et al., 2020a), the incorporation of conductive additives such as electric arc furnace slag (Liu et al., 2021), steel slag (Li et al., 2018a) steel wool fiber (Kargari et al., 2022), activated carbon (Jahanbakhsh et ...
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Incorporating steel slag (SS) and stone powder (SP) as supplementary cementitious materials (SCMs) in cement and concrete products is an effective approach to promoting environmental protection. Recently, the effect of using steel slag alone is not satisfactory and the performance of blended cementitious materials is expected to improve …
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Superfine slag powder production line is one kind of ultrafine powder production. With continuous development of highly fine grinding equipment with high yield, production of ultrafine powder becomes a reality. Superfine slag powder production line can be divided into two types, namely open circuit type and open circuit type. When selecting ...
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Admixtures are used in the production of specific types of concrete ... application technology for blast furnace slag concrete, (2013). ... reduction of blast furnace slag powder concrete mixed ...
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Upgraded titania slag (UGS) is the precursor for producing TiO 2 or TiCl 4 by the sulfuric acid or the chlorination process. The disadvantages of producing titanium dioxide with sulfuric acid include long production time, non-continuous production, and complex process, serious in environmental pollution [[27], [28], [29]]. Most of the materials ...
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Vertical mill slag powder equipment plays a key role in the processing of slag. The application of the vertical grinding slag micropowder technology makes the processing of slag more elaborate. In the cement manufacturing production process, the slag is used as raw material to realize the recycling of waste and reduce the pollution of the slag ...
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Titanium slag. The second most significant raw material for the tio2 manufacturing process is titanium slag, containing 75-90% TiO2 and 5-7% FeO. Read also our article on titanium slag production process. Other raw material sources. Natural and synthetic rutile, as well as ore fines, have secondary importance.
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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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Steel slag has great potential as a supplementary cementitious material, because its composition is similar to cement and it has a certain cementitious activity after grinding it into micronized powder [[11], [12], [13], [14]].However, the low hydration activity of steel slag compared to cement limits its application [15], [16], [17], and the reasons for this are as follows: (1) The …
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The main reason is that steel slag powder, as a relatively more inert powder particle than GGBFS powder, reacts much less than GGBFS powder in the early stage and reduces the production of reaction products, which can delay the setting of the paste. From the SS0 group to the SS10 group, the initial and final setting times increased by 10.5% ...
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Steel slag is a solid waste produced in crude steel smelting, and a typical management option is stockpiling in slag disposal yards. Over the years, the massive production of steel slags and the continuous use of residue yards have led to vast occupation of land resources and caused severe environmental concerns. Steel slag particles can potentially be …
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The open circuit grinding process is the earliest slag powder grinding technology. It has the advantages of simple process, low technical requirements for operators, and low investment cost. The unit power consumption of this system is about 100kWh/t per grinding slag with a specific surface area of 450m 2 /kg.
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The Centrifugal atomization process finds wide application in the production of sprays & droplets [] as well as polymer microspheres [], dry slag granulation [3, 4], metal powder production [5,6,7], etc.There is an increasing demand for powders and granules as a form of starting material for several industrial applications such as architectural coatings, additive …
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Corrigendum to "Mathematical simulation of two-phase flow and slag entrainment during steel bloom continuous casting": [Powder Technology 390 (2021) 539–554] Wei Chen, Lifeng Zhang, Yadong Wang, Sha Ji, ...
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The financial support provided by the Research and demonstration of key technology and equipment for scale decomposition and gradation of coal gasification ash and slag of China (2023YFC390430 3), Key project of National Natural Science Foundation of China (52234004), and Research on the preparation of low carbon high performance concrete with ...
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Cement production significantly contributes to CO 2 footprint and the utilization of solid wastes in this process not only promotes resource conservation but also enhances the properties of the resulting product. The synergistic effect of waste glass powder (WGP) and steel slag powder (SSP) on the mechanical properties and microstructure of cement-based …
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The XRD patterns revealed a prominent peak in the slag powder, accompanied by a few minor diffraction peaks, indicating a predominance of amorphous phases with minimal crystalline phases, suggesting the latent reactivity of the slag. ... According to the technical specifications for whole tailings paste backfill production technology in ...
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The process of titanium slag production is the process of smelting ilmenite concentrate in arc ore-thermal furnaces (OTF) in a semi-closed mode with the use of a powder mixture to obtain titanium slag of a specified content of iron oxide, as well as associated metal.
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Electric arc furnace oxidizing slag (EAFOS) represents 80% of the electric arc furnace slag generated. Recently, EAFOS has been utilized as high value-added functional …
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For slag powder process, operational stability of the vertical mill (indexed by the material layer thickness) is the primary concern for production safety and long-term benets.
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Coal gasification coarse slag (GFS) is a byproduct of coal gasification technology, which contains abundant amorphous aluminosilicate minerals. GFS has low carbon content, and its ground powder has potential pozzolanic activity, which can be used as a supplementary cementitious material (SCM) for cement. Herein, GFS-blended cement was studied in terms of …
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Slag powder is a fine-grained byproduct produced during the separation of metal from its ore in various high-temperature metallurgical processes, such as smelting and refining. It is composed of various minerals and compounds, and its specific composition depends on the type of ore being processed and the production methods employed. Types of Slag Powder Ground […]
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