water quenching method: The liquid steel slag is crushed into small particles of steel slag using high-pressure water during the dumping process. Simple …
Metallurgical solid waste blast furnace water quenched slag ... low cost and fast processing time in steel enterprises, seen in Fig. 1. WBFS is a fine particle mainly composed of vitreous body, porous, honeycomb like, light and brittle, with a Moh's hardness of 1–2 and a (naturally accumulated) specific gravity of 0.8–1.3 t/m 3 [31].
A steelmaking waste, water-quenched slag (WQS), was employed as an alternative to river sand fabricating the AAC. The pull-out tests aimed at examining the bond performance of the AAC incorporating different volumes of WQS and embedded different reinforcements. ... Bond performance of corroded rebars in sustainable alkali-activated …
Water quenched granulated BF slag is of glass phase structure, thereby has high potential cementitious reactivity, and has been widely utilized in cement and concrete areas. Steel slag has crystallized in solidified process due to its high basicity, and some crystals, such as C 2 S and C 3 S have low cementitious reactivity.
At the end of the process, BFS can either be rapidly cooled with large volumes of water under high pressure to form water-quenched slag or through slow cooling in air to form air-cooled slag ...
Semantic Scholar extracted view of "An approach towards utilization of water-quenched blast furnace slag for recovery of titanium, magnesium, and aluminum" by Jinrong Ju et al. Skip to ... Basic research on the leaching behavior of vanadium-bearing steel slag with titanium white waste acid. Wei-guang Zhang Ting'an Zhang Tingting Li …
Water quenched: Roslan et al. (2016) Malaysia: 26.4: 4.84: ... C 4 AF, and C 2 F, exhibiting cementitious performance when mixed with water. Therefore, steel slag can act as raw material for cement clinker production and as a potential mineral admixture for concrete at a proper replacement level (Wang and Yan, 2010; Li et al., ...
In this paper, S95 grade ultrafine mineral admixture was prepared by water quenched manganese slag and fly ash 1:1 compound mechanical ball milling to a specific surface area of 714 m2/kg. Its ...
In stainless steel production, slag from argon oxygen decarburization (AOD) converters is dumped on to the ground and then slowly cooled. The slag undergoes phase transformation from β-dicalcium silicate (β-C2S) to γ-dicalcium silicate (γ-C2S) at approximately 500 °C to 450 °C, resulting in slag volume expansion, disintegration, and …
Gas-quenched steel slag abrasive was obtained by gas quenching with high-temperature liquid steel slag as raw material. The phase composition, thermal properties, micromorphology, magnetic properties, and mechanical properties of the par- ... air quenching, roller, water quenching, and heat sealing [, 56]. Studies have found that …
DOI: 10.2139/ssrn.4158349 Corpus ID: 250434785; Recycling of Water Quenched Slag and Silica Sand Tailing for the Synthesis of an Eco-Friendly Permeable Material @article{Liu2022RecyclingOW, title={Recycling of Water Quenched Slag and Silica Sand Tailing for the Synthesis of an Eco-Friendly Permeable Material}, …
The Magic Carbon Limit: How to tell which steels can be water quenched. Water quenching is the most severe form of quenching available and not all steels are suited for this process due to cracking risk. Steel with more than .3% carbon can't be water quenched because it can potentially crack during this process. Materials under .3% are …
In this regard, Liu et al. performed a comparative evaluation of water quenched and dry granulated slag particles used as a substitute material in cement production. As a result, dry granulated slag was reported to have similar hydration properties with water quenched slag. ... In this regard they produced a calcium-rich …
The reconstituted water-quenched blast furnace slag still has good activity, and it will not affect the further use of the slag after pyrolysis (BFS-P). Blast furnace slag, which is the main by-product of the ironmaking process discharged at 1450 °C, contains high-quality sensible heat, while oily sludge is the main solid waste produced in the ...
SEM mapping results indicate that all nutrient elements are evenly distributed in the water-quenched slag. In general, after ultrafast water quenching, the molten slag is transformed into microporous, multi-soluble matter and an amorphous structure [41,42], which is beneficial to the excitation of YPS to release the micronutrients.
Semantic Scholar extracted view of "Effect of water quenched silicomanganese slag as fine aggregate on mechanical properties and microstructure characteristics of solid waste-based mortar and concrete" by Xinyu Feng et al. ... and hydration mechanism of a clinker-free ultra-high performance concrete with solid waste based binder and steel slag ...
Resource utilization of water-quenched blast furnace slag (BFS) for recovery of valuable metals such as titanium, magnesium, and aluminum are strategic issues for the iron and steel industry's long-term development. This study proposed a sustainable strategy for simultaneous Ti, Mg, and Al extraction from water-quenched …
DOI: 10.1016/j.istruc.2020.01.007 Corpus ID: 213905294; Bond performance of reinforced alkali-activated composites using water-quenched slag as alternative fine aggregates @article{Cong2020BondPO, title={Bond performance of reinforced alkali-activated composites using water-quenched slag as alternative fine aggregates}, author={Xinyu …
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 …
Two different slag samples (Slag-A and Slag-B) were considered from the water quenched GBF slags, and the other two were ACBF (Slag-C and Slag-D) which was a slow cooling by nature. In case of GBF, water was quenched/sprayed over the hot molten slag on the high speed rotating disk and takes minimum time to gain the room …
A Review on the Carbonation of Steel Slag: Properties, Mechanism, and Application. by. Shuping Wang. 1, Mingda Wang. 1, Fang Liu. 1, Qiang Song. 1, Yu …
In general, the activities of water-quenched blast-furnace slag and steel slag are higher than that of other metallurgical waste slags. In particular, the activity of steel slag is rapidly stimulated under an accelerated carbonization treatment. As well as grinding, other metallurgical waste slags can be used in combination with cement ...
PDF | On Jan 1, 2017, Xing-Mei Shen and others published Utilization of Air Quenched Steel Slag in Decorative Ceramics with Higher Mechanical Properties | Find, read and cite all the research you ...
Water quenched steel parts may rust unless immediately treated with a rust preventive. Temperature. The temperature at which water boils (and the maximum cooling rate or maximum heat transfer) occurs within the range of most martensitic transformation temperatures for most grades of steel. Because of the low temperature …
Air-cooled slag contains substantial quantity of crystalline phases (>50%) which prevents the slag to exhibit cementitious properties whereas water-quenched …
The slag was remelted, modified, and water-granulated in laboratory scale, and its performance as an SCM was compared to water-granulated ladle slag and two commercial GGBS. ... Bullerjahn F, Bolte G (2022) Composition of the reactivity of engineered slags from bauxite residue and steel slag smelting and use as SCM for …
A method of quenching and atomising the molten slag simultaneously under a high pressure water jet was investigated by Cang's group. 5 Experiments about cooling and pulverising the molten steel ...
The adsorption capacity of seven inorganic solid wastes [air-cooled blast furnace (BF) slag, water-quenched BF slag, steel furnace slag, coal fly ash, coal bottom ash, water treatment (alum) sludge and seawater-neutralized red mud] for Cd2+, Cu2+, Pb2+, Zn2+ and Cr3+ was determined at two metal concentrations (10 and 100 mg L−1) …
The liquid slag is cooled and solidified by rapid water quenching to form a glassy state material with minimum probability of crystallisation. This rapid water …
steel slag, this experiment uses cooled steel slag as the raw materials (as shown in Fig. 1), which are firstly re-melted in a small DC arc furnace and then used for the air-quenching process. The raw materials in this experiment are untreated converter steel slag and water-quenched BF slag provided by a local steel company. Steel slag is the
Resource utilization of water-quenched blast furnace slag (BFS) for recovery of valuable metals such as titanium, magnesium, and aluminum are strategic issues for the iron and steel industry's ...
A novel approach to prepare glass–ceramics from molten steel slag (MSS) was proposed. In laboratory, the water-quenched steel slag was melted at 1350 °C to simulate the MSS.A mixture of additive powders in wt.% (55 quartz powder, 5 Na 2 O, 16 emery powder, 15 CaO, 8 MgO, 1 TiO 2) were melted into liquid at 1350 °C separately. …
Therefore, we tried to activate the water-quenched-manganese-slag (WQMS) through the pretreatment method of calcination and additive calcination then mixed with KMnO4 (oxidation and absorption in ...
Although water-quenched blast furnace slag (BFS) has been used to produce slag cement for a long time, other slags such as air-cooled BFS and steel making slag are not used. The feasibility of using these types of slags has been disregarded due to the prejudgment that air-cooled slags (AS) are hydraulically unreactive.
Water quenching is an umbrella term used to describe a heat treatment process in which a heated metal component is rapidly cooled by immersing it in a water-based quenchant. …
Steel slag can also be produced by smelting iron ore in a basic oxygen furnace. According to methods for cooling molten steel slag, steel slag is classified into five types: natural …
The sample of water-quenched BFS was obtained from an iron and steel smelting factory in Panzhihua, Sichuan, China, with a particle size of less than 5 mm, and its XRD pattern is shown in Fig. 2.It is clear that the crystallization degree of water-quenched BFS is inferior, with only a few CaTiO 3 diffraction peaks (PDF#77-0182). …