Steel slag tailings
Steel slag in China: Treatment, recycling, and management
2018年8月1日 Steel slag after taping is treated first, but the slagtreatment process (airgranulated process, rotary cylinder process, layerpouring process, and selfdisintegrating 2024年8月15日 To utilize the potential benefits of iron ore tailings (IOT) in the synergistic utilization of multiple solid wastes, this study investigated the mechanism of microIOT on steel The effects of iron tailings on steel slagbased cementitious 2023年11月25日 This study investigates how blending steel slag with IOTs (a siliceous raw material) instead of lime (a calcareous raw material) affects slurry foaming properties, mechanical properties, and reaction mechanisms of The Composition and Performance of Iron Ore Tailings 2024年1月19日 Steel slag powder (SSP) can be used as both aggregate and cementitious material according to different particle size SSP has multiple influencing effects on coarse Experimental study on influencing mechanism of the multiple
Study on Physical Excitation Mechanism of Steel Slag Tailings by
In this paper, steel slag tailings were stimulated physically by mechanical grinding to obtain powder with various sizes Then, mortar samples of steel slag tailings were prepared in light of Steel slag, desulphurised ash, desulphurised gypsum and ultrafine iron tailing sand are common industrial solid wastes with low utilisation rates Herein, industrial solid wastes (steel slag, desulphurised gypsum and desulphurised The Preparation Process and Hydration Mechanism of 2024年2月14日 This study focuses on Iron ore tailings (IOTs), a solid waste generated during iron ore processing, which can be used as supplementary cementitious materials (SCMs) but Sustainable assessment and synergism of ceramic powder and 2024年2月2日 This study offers a new route to improving the comprehensive utilization of steel slag and also provides promising guidance for the utilization of other alkaline solid wastes, Simultaneous utilization of mine tailings and steel slag for
Optimized development of steel slag tailingsGGBS based lowcost
For developing of steel slag tailingsGGBS based soft mine backfill material, solid materials ratios were optimized Hot stuffy steel slag magnetic selection tailings (steel tailings) were used to 2024年1月1日 In order to improve performance of biocementation, many strengthening materials were applied to the biocementation of tailings Steel slag (SS) is a kind of industrial solid waste, its chemical composition and mineral composition are similar to cement, and it has a certain application prospect as an auxiliary cementing materialProperties and mechanisms of steel slag strengthening microbial 2024年2月2日 This study provided a new route to improving the comprehensive utilization of tailings and steel slag Abstract Utilization of aluminosilicaterich solid waste via geopolymerization, such as mine tailings (MTs), possesses a dual advantage of reducing CO 2 release from cement manufacturing and increasing tailings utilizationSimultaneous utilization of mine tailings and steel slag for 2024年8月15日 Iron ore tailings (IOT) are a waste generated during the beneficiation process, and their annual production has increased with the rapid development of the iron and steel industry [32]IOT have a fine grain size and are unsuitable as sand, with a utilization rate of 7 % [33, 34]The chemical composition of IOT is similar to cement; however, untreated IOT The effects of iron tailings on steel slagbased cementitious
Slag Wikipedia
Molten slag is carried outside and poured into a dump The general term slag may be a byproduct or coproduct of smelting (pyrometallurgical) ores and recycled metals depending on the type of material being produced [1] Slag is mainly a mixture of metal oxides and silicon dioxideBroadly, it can be classified as ferrous (coproducts of processing iron and steel), Steel slag will be an alternate source to conserve natural resources by utilizing large quantity of steel slag in Q Q, Zhao, F Q, Chu, X M (2014) Utilization of steel slag, iron tailings and fly ash as aggregates to prepare a polymermodified waterproof mortar with a coreshell styreneacrylic copolymer as the modifier Recent applications of steel slag in construction industry2019年5月23日 With the addition of iron tailings, C/S of modified steel slag is gradually reduced Comparing with the original steel slag, the phase of the gelling property in the mineral composition of reduced steel slag is increased greatly, and the 28 days activity index is enhanced by 70%Comprehensive Utilization Technology of Steel SlagSteel slag and iron ore tailings to produce solid brick Suzy Magaly Alves Cabral de Freitas1 Leila Nobrega Sousa1 Pollyana Diniz1 Máximo Eleotério Martins2 Paulo Santos Assis1 Received: 19 April 2017 / Accepted: 22 February 2018 / Published online: 1 March 2018Steel slag and iron ore tailings to produce solid brick
Experimental study on influencing mechanism of the multiple
2024年1月19日 The gradation of aggregate and the hydration reaction of cementitious materials are important factors affecting the performance of backfill materials Steel slag powder (SSP) can be used as both aggregate and cementitious material according to different particle size SSP has multiple influencing effects on coarse tailings cemented backfill (CTCB) Experiment with 2021年10月7日 GGBFS is a byproduct of the steelmaking industry and is used as supplementary cementitious material In the present study, steel slagbased binders (steel slag mass fraction ≥ 60 wt%) (SSBs) composed of varying amounts of steel slag powder (SSP), GGBFS, and flue gas desulphurization gypsum (FGDG) were investigated as S/S bindersSolidification/Stabilization of ArsenicContaining Tailings by Steel 2022年2月15日 The high carbonation potential makes ultramafic tailings ideal aggregates for carbonated building materials This paper investigates the preparation condition of ultramafic tailings and steel slag through orthogonal experiments The results show that compressive strength has a positive exponential correlation with the CO2 uptake of the carbonated Orthogonal Test Design for the Optimization of Preparation of Steel 2014年12月8日 The potential uses of copper mine tailings and steel slag need to be explored and the negative impact of mine tailings should be reduced by exploring potential uses of these waste materials in the (PDF) Potentials of steel slag and copper mine tailings
Experimental study on the utilization of steel slag for cemented
2020年9月20日 The raw materials used to prepare the binders in the present work were steel slag (SS) and OPC and the chemical compositions are present in Table 1, determined by an Xray fluorescence analyzer (XRF)As shown in Table 1, higher content of MgO was found in SS with lower SiO 2 and CaO content compared with OPC Fig 1 shows the phase assembles and TG In this paper, steel slag tailings were stimulated physically by mechanical grinding to obtain powder with various sizes Then, mortar samples of steel slag tailings were prepared in light of Steel slag powder used for cement and concrete (GB/T 20491—2006) and Method of testing cementsDetermination of strength (ISO) (GB/T 17671—1999)Study on Physical Excitation Mechanism of Steel Slag Tailings by The effluent from the tailings from the mining of sulfidic minerals has been described as "the largest environmental liability of the mining industry" [4] These tailings contain large amounts of pyrite (FeS 2) and Iron(II) sulfide (FeS), which are rejected from the soughtafter ores of copper and nickel, as well as coal Although harmless underground, these minerals are reactive Tailings WikipediaIn this paper, steel slag tailings were stimulated physically by mechanical grinding to obtain powder with various sizes Then, mortar samples of steel slag tailings were prepared in light of Steel slag powder used for cement and concrete (GB/T 20491—2006) and Method of testing cementsDetermination of strength (ISO) (GB/T 17671—1999)XRD与SEM的钢渣尾渣物理激发机理研究
The Role of Chemical Activation in Strengthening Iron Ore Tailings
2024年4月1日 The preparation of iron ore tailings (IOTs) into supplementary cementitious materials (SCMs) is an effective approach to achieve valueadded utilization of industrial solid waste This study systematically investigates the hydration pattern and strength development of Portland cement systems with the incorporation of IOTs, steel slag (SS), granulated blast 2015年3月1日 EAF steel slag can be processed into fine and coarse aggregate material for use in gapgraded, opengraded and dense graded asphalt mix At the processing stage, the swelling potential is of prime importance because of the magnesium and free lime in the slag could result in pavement deterioration, if ignored (Norton, 1979)The ASTM D 5106 (ASTM, 2003) stated Evaluation of asphalt mixtures incorporating electric arc furnace steel 2020年8月14日 The physicochemical properties of both the lead–zinc mill tailings and fuming furnace slag (FFS) have been examined In the first set of experiments, raw slag (FFS) was used for paste backfill Jianming Y, Jingwen L, Qisheng W, Feng XM, Xiaohua L (2018) Influence of Steel Slag Powders on the Properties of MKPC Paste Constr Utilisation of lead–zinc mill tailings and slag as paste backfill 2019年3月1日 Steel slag tailings are the main solid waste in metallurgical industry, with the production of 15%~20% of crude steel The utilization ratio is quite low and only reaches 10% of steel slag Study on Physical Excitation Mechanism of Steel Slag Tailings
Effectiveness and mechanism of cyanide tailings cementation by steel
2024年10月1日 Ammonia production by ureolytic bacteria limited the practical application of microbial induced carbonate precipitation (MICP) In this work, a coupled technique of steel slag (SS) combined with nonureolytic bacterial mineralization is proposed to investigate the effects and mechanisms of enhanced cyanide tailings (CT) solidification2024年10月15日 Iron tailings contribute to the availability of silicon and aluminum sources in cementitious materials, while steel slag served as a calcium source The alkali in red mud expedites the hydration process of calcium silicate in steel slag and silicon – aluminum components in iron tailingsSynergistic effect of iron tailings, steel slag and red mud Abstract:In order to realize the synergistic utilization of wastes and reduce the backfill cost, this paper took the GGBSbased fine unclassified tailings cemented backfill material as the benchmark, and the flow of backfill slurry and backfill strength as the characteristics to carry on research For developing of steel slag tailingsGGBS based soft mine backfill material, solid Optimized development of steel slag tailingsGGBS based low Steel slag, desulphurised ash, desulphurised gypsum and ultrafine iron tailing sand are common industrial solid wastes with low utilisation rates Herein, industrial solid wastes (steel slag, desulphurised gypsum and desulphurised The Preparation Process and Hydration Mechanism of
Potentials of steel slag and copper mine tailings as
steel slag and copper mine tailings are deposited in yards, polluting the environment Researchers need to pay attention to the effective use of industrial byproducts in construction to address 2023年12月15日 The particle size of SS was concentrated around 20 µm (Fig 1 (a)), with a specific surface area of 420 m 2 /kg; the cement was PO425 ordinary Portland cement; The aggregates were iron tailings with a particle size concentrated around 300–400 µm (Fig 1 (b)); assay data are shown in Table 1, the steel slag is mainly composed of CaO, SiO 2, Al 2 O 3, Damage characterization and microscopic mechanism of steel slag 2022年8月27日 However, the use of slag from metallurgical processes is more common for the recovery/recycling of tailings from mining, so steel slag is among the more commonly used waste types [32,75] For example, there is a study that was carried out recycling gold mining waste by slag atomization, being a process without harmful environmental impactsRecycling and Reuse of Mine Tailings: A Review of Advancements Abstract: Hightemperature modification by iron tailings was performed to study its influence on the volume stability and cementitious properties of steel slag The mineral constituents and microstructure of steel slag after the hightemperature modification were analyzed via Xray diffraction (XRD), scanning electronic microscopy (SEM) and energy dispersive spectrometry 利用铁尾矿高温改性钢渣的性能 USTB
Utilization of steel slag, iron tailings and fly ash as aggregates to
2014年12月15日 Iron tailings, steel slag and fly ash were used to replace river sand for preparing the mortar For determining a reasonable ratio of them, effects of the aggregate ratio on mechanical properties of mortars were investigated As shown in Table 3, iron tailings was fixed to 40 wt% and the content of steel slag was ranged from 30 to 60 wt%2023年11月25日 Iron ore tailings (IOTs) are byproducts of the iron mining industry that have gained significant attention in recent years due to their potential for comprehensive utilizationThe Composition and Performance of Iron Ore Tailings in Steel Slag There exist synergistic effect between steel slag and blast furnace slag in preparation of solidifying agent for total tailings backfill By investigating the effect of various activators, the proportioning of the solidifying agent was obtained: steel slag 35 %, blast furnace slag 35 %, Portland cement 10%, desulfurization gypsum 10%, calcium chloride 6%, anhydrous sodium [PDF] Influencing Factors of Steel Slag/Blast Furnace Slag Based 2024年1月1日 In order to improve performance of biocementation, many strengthening materials were applied to the biocementation of tailings Steel slag (SS) is a kind of industrial solid waste, its chemical composition and mineral composition are similar to cement, and it has a certain application prospect as an auxiliary cementing materialProperties and mechanisms of steel slag strengthening microbial
Simultaneous utilization of mine tailings and steel slag for
2024年2月2日 This study provided a new route to improving the comprehensive utilization of tailings and steel slag Abstract Utilization of aluminosilicaterich solid waste via geopolymerization, such as mine tailings (MTs), possesses a dual advantage of reducing CO 2 release from cement manufacturing and increasing tailings utilization2024年8月15日 Iron ore tailings (IOT) are a waste generated during the beneficiation process, and their annual production has increased with the rapid development of the iron and steel industry [32]IOT have a fine grain size and are unsuitable as sand, with a utilization rate of 7 % [33, 34]The chemical composition of IOT is similar to cement; however, untreated IOT The effects of iron tailings on steel slagbased cementitious Molten slag is carried outside and poured into a dump The general term slag may be a byproduct or coproduct of smelting (pyrometallurgical) ores and recycled metals depending on the type of material being produced [1] Slag is mainly a mixture of metal oxides and silicon dioxideBroadly, it can be classified as ferrous (coproducts of processing iron and steel), Slag WikipediaSteel slag will be an alternate source to conserve natural resources by utilizing large quantity of steel slag in Q Q, Zhao, F Q, Chu, X M (2014) Utilization of steel slag, iron tailings and fly ash as aggregates to prepare a polymermodified waterproof mortar with a coreshell styreneacrylic copolymer as the modifier Recent applications of steel slag in construction industry
Comprehensive Utilization Technology of Steel Slag
2019年5月23日 With the addition of iron tailings, C/S of modified steel slag is gradually reduced Comparing with the original steel slag, the phase of the gelling property in the mineral composition of reduced steel slag is increased greatly, and the 28 days activity index is enhanced by 70%Steel slag and iron ore tailings to produce solid brick Suzy Magaly Alves Cabral de Freitas1 Leila Nobrega Sousa1 Pollyana Diniz1 Máximo Eleotério Martins2 Paulo Santos Assis1 Received: 19 April 2017 / Accepted: 22 February 2018 / Published online: 1 March 2018Steel slag and iron ore tailings to produce solid brick2024年1月19日 The gradation of aggregate and the hydration reaction of cementitious materials are important factors affecting the performance of backfill materials Steel slag powder (SSP) can be used as both aggregate and cementitious material according to different particle size SSP has multiple influencing effects on coarse tailings cemented backfill (CTCB) Experiment with Experimental study on influencing mechanism of the multiple 2021年10月7日 GGBFS is a byproduct of the steelmaking industry and is used as supplementary cementitious material In the present study, steel slagbased binders (steel slag mass fraction ≥ 60 wt%) (SSBs) composed of varying amounts of steel slag powder (SSP), GGBFS, and flue gas desulphurization gypsum (FGDG) were investigated as S/S bindersSolidification/Stabilization of ArsenicContaining Tailings by Steel
Orthogonal Test Design for the Optimization of Preparation of Steel
2022年2月15日 The high carbonation potential makes ultramafic tailings ideal aggregates for carbonated building materials This paper investigates the preparation condition of ultramafic tailings and steel slag through orthogonal experiments The results show that compressive strength has a positive exponential correlation with the CO2 uptake of the carbonated