Slag cement
and CSA A3001 "Cementitious Material for Use in Concrete." Slag has cementitious properties similar to portland cement. It is typically used with portland cement at …
and CSA A3001 "Cementitious Material for Use in Concrete." Slag has cementitious properties similar to portland cement. It is typically used with portland cement at …
Additionally, the small particle size and large specific surface area of the slag result in a thinner water lubrication layer between the cementitious material particles at the same water content, further reducing the fluidity of the paste [36]. Comprehensive analysis shows that 10 % slag has little effect on the fluidity of S-MSPPC paste and ...
Nickel slag is a granulated slag formed by natural cooling or water quenching of a melt formed during the smelting process of nickel metal, which contains …
Coal gasification technology has led to a significant increase in CGS discharge and consequently, the disposal of gasified solid waste gasification slag has become a major concern [10].It is reported that, more than 70 million tons of CGS is produced every year in China [11].Only a very small part of the slag is used, while the …
UDC 669 . 054 . 82 : 669 . 184 . 244 . 66. logies for Steelmaking SlagKazuhiro HORII* Yoshiyuki KITANONaoto TSUTSUMI Toshiaki KATOAbstractAbout 40 million tons of …
Taeb and Faghihi [18] also reported that, in laboratory scale tests, the water demand decreased with increasing the proportion of the copper slag in the raw material. However, the utilization of the FWCS as raw material was found to exert no significant effect on the water demand for standard consistency (Table 4).
Taking into account the above mentioned, the partial replacement of a traditional raw material by industrial waste in the manufacture of conventional refractory castable is a "green" practice that represents environmental and economic benefits such as: i) efficient management for the blast furnace slag elimination, ii) reducing the ...
Steelmaking plants continuously strive to reduce the environmental load in the steelmaking process, resulting in the recycling of energy, water, and other …
The raw materials used in the test were S95 grade granulated blast furnace slag, Class F secondary FA, and Portland cement PO42.5. The chemical compositions of each substance are shown in Table 1.Laser particle size distribution meter and X-ray diffractometer were used to determine the particle size distribution and mineral composition of FA and slag, …
The environmental analysis of BOF slag as raw material in asphalt concrete manufacturing was carried out by the LCA methodology. Environmental performance …
The global demand for raw materials is growing exponentially with the world's urbanization and technological progress. The growing raw materials consumption is an economical threat due to the increasing scarcity of critical materials, but also an environmental threat with increased amounts of production waste such as slag.
Fine and coarse aggregates, sand and stones, make up 60-70% of the raw materials in a concrete mix. Local sourcing is an economical and sustainable solution, though not always viable due to unfavorable characteristics of the materials available. ... The use of mineral additions as supplemental cementitious materials, like fly ash, slag, silica ...
Ti-extraction blast furnace slag (TEBFS) is the metallurgical solid waste generated during titanium extraction by high-temperature carbonization and low-temperature selective chlorination process in China. The high chlorine content in slag restricts its large-scale utilization in engineering materials. To solve this problem, this …
To enhance the application of alkali-activated materials in mine filling, cemented tailings backfill was prepared using slag, fly ash, sodium silicate, and NaOH as primary constituents. The effects of the raw material type and dosage on the backfill were examined through a single-factor experiment. Additionally, response surface …
The utilization rate of SS exceeds that of LFS due to its lower basicity, although it remains considerably lower than the rates observed in developed countries in Europe and the United States, standing at approximately 30 % [4].Currently, the internal recycling of SS predominantly takes place within the smelting production process, …
Integrated steel plants utilize mostly five materials such as raw materials, air, water, fuel and power to produce steel. During the production of steel, 2–4 t of …
Moreover, the water damage resistance, as well as the stiffness and fatigue life of steel slag based asphalt mixture also improved due to the vesicular and pitted structure of steel slag [8,9,10]. Different from the conventional hot-mixed asphalt (HMA), an asphalt mixture with steel slag does not need to consume substantial fossil fuels and ...
1. Introduction. Vanadium (V) is a hard, silvery gray, ductile transition metal [1].It is an important strategic metal, and its compounds have a wide range of applications in metallurgy, chemistry, defense and construction materials [2], [3], [4], [5].Approximately 88% of the world's vanadium is extracted from vanadium titano-magnetite ore (VTM), …
To promote the resource utilization of steel slag and improve the production process of steel slag in steelmaking plants, this research studied the characteristics of three different processed steel …
High-performance slag glass–ceramics were prepared by melting method using rare earth-containing blast furnace slag as the main raw material and Fe2O3 and Cr2O3 as composite nucleating agents.
Results suggest ferrochrome slag's feasibility as an aggregate raw material for refractory materials up to temperatures of 1200 °C in air and up to temperatures of 700 °C in acidic gaseous atmosphere. ... was replaced by fine EAF slag fraction. Water to cement ratio was experimentally locked to 0.51 for Castables1, 3 and 4 and to 0.44 for ...
During the processing of raw materials with low content of valuable components, the solvent extraction methods are more preferred for concentration and separation from accompanying impurities. ... In other words, slag was mixed with water at S:L ratio of 1:1 and at the same time pulp was heated up to a preset temperature. The …
The cement can be produced by water slag powder, steel slag powder and sand as the main raw materials. By adding crushed stone, steel slag sand and water slag as the aggregates, cement together with the aggregates can be furtherly synthesized into unburned bricks(Gao et al., 2021).
The molten slag is collected and quenched with water-forming boiler slag. When the molten slag comes in contact with the quenching water, it fractures, crystallizes, and forms pellet-shaped particles. Boiler slag is a vitreous, grained material made up of hard, black, and angular particles with a smooth and glassy appearance (ECOBA, 2015).
The raw material added during the grinding process defines the quality of the cement. Therefore, the raw materials determine the cement grade. ... It improves the cement properties and reacts with water to form cementitious compounds. Slag improves sulfate resistance as well as the overall performance of the cement. 9. Bauxite. Bauxite, …
1. Introduction. Because of its excellent binding properties, strength and durability, cement is popular in the building field. While, the cement production is inevitably accompanied by the production of carbon dioxide, which exacerbates the greenhouse effect [1].There are a number of factors contributing to the greenhouse effect, among which …
Waste lithium batteries are valuable materials without other impurities, so lithium battery recycling is the best way to regenerate the preparation of new battery raw materials [38], [39]. Overhaul slag contains a rich variety of substances that need to be purified and cleaned, so this paper considers H 2 SO 4 as an additive to extract valuable ...
Ordinary Portland cement is an efficient hydraulic binding material and has become the most widely used type of cement. Producing 1 ton of cement requires 1.7 tons of raw materials [1].Cement is a major source of carbon pollution, as the production process emits large amounts of CO 2 and other pollutants [2], [3], [4].In 1978, Davidovits …
Slag is a raw material mainly composed of calcium oxide, as well as some silicon and aluminum oxides . It was noted by Guo et al. [ 11 ] that the high calcium content can improve the early strength. Li et al. [ 14 ], Zhang et al. [ 33 ], and Li et al. [ 15 ] observed an amorphous chemical structure that facilitates high reaction rates.
According to the phase diagram, as shown in Figure 11 [118], and the chemical com- Several studies have been devoted to preparing glass-ceramic using the raw materials of ferrochrome slag, waste ...
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