MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Improve the activity of slag
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Comprehensive utilization of steel slag: A review ScienceDirect
2023年5月15日 At present, there are four ways to improve the hydration activity of steel slag including mechanical excitation [36], chemical excitation [37], hightemperature activation [38], 2022年11月9日 We found that acetic acid could activate the hydration properties of steel slag powder to a certain extent and improve its strength Minerals in steel slag, such as Mg 2 Al(OH) 7, fCaO, C 3 S, C 2 S, C 2 F, and RO phases, Effect and Mechanism of Acetic Acid to Improve the 2024年1月12日 To enhance the applicability of steel slag in civil engineering, various methods have emerged to improve its performance, such as hightemperature modification, carbonation Review Accelerated carbonation of steel slag: A review of methods 2022年11月9日 We found that acetic acid could activate the hydration properties of steel slag powder to a certain extent and improve its strength Minerals in steel slag, such as Mg2Al Effect and Mechanism of Acetic Acid to Improve the Hydration
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The Effect of Removing HardtoGrind Minerals from Steel Slag on
2023年8月22日 It is found that the removal rate of hardtogrind minerals in steel slag is the highest when steel slag enters magnetic separation particle size of 1 mm and magnetic field 2011年2月28日 The results show that the cementitious phase of steel slag is composed of silicate and aluminate, but the large particles of these phases make a very small contribution A discussion on improving hydration activity of steel slag by 2019年5月23日 Steel slag is the waste generated in the steelmaking process and includes ferric oxide and the impurities of some infusible matters It is the byproduct when slagforming Comprehensive Utilization Technology of Steel Slag2022年11月15日 The activity of C3A in steel slag is significantly improved after grinding • Wetgrinding increases the risk of heavy metal leaching from steel slag • Wetgrinding could save Mechanical activation of steel slag to prepare supplementary
Study on the Early Effect of Excitation Method on the
2023年3月7日 The results show mechanical excitation can effectively improve the particle size distribution and cementitious activity of steel slag The best mechanical properties are obtained when grinding for 20 min and adding 10% Abstract We found that acetic acid could activate the hydration properties of steel slag powder to a certain extent and improve its strength Minerals in steel slag, such as Mg 2 Al(OH) 7, fCaO, C 3 S, C 2 S, C 2 F, and RO phases, could be dissolved by acetic acid, leaching more Ca 2+ to participate in the hydration process The major hydration products were silica gel and calcium Effect and Mechanism of Acetic Acid to Improve the Hydration Activity 2021年10月1日 Three methods have been widely employed to improve the reactivity of steel slag and concurrently reduce its potential harm on cementbased host materials: (i) physical excitation, which stimulates the hydration activity by physically grinding steel slag into finer powder (Liu et al, 2016), (ii) chemical excitation, which adds chemical admixtures, such as Review Use of steel slag as sustainable construction materials: A 2024年1月12日 Steel slag is a byproduct of the steel production process, accounting for approximately 15% of the whole crude steel output [1]The accumulation of untreated steel slag not only occupies a significant amount of land but also leads to the leaching of heavy metal ions (such as vanadium, chromium, arsenic, lead, cadmium), polluting surrounding water sources Review Accelerated carbonation of steel slag: A review of methods
An approach to improve the reactivity of basic oxygen furnace slag
2023年5月23日 The construction industry is one of the greatest CO 2 emitters Cement, as an essential ingredient of concrete which is the most widely used building material, contributes around 5–8% of global anthropogenic CO 2 emissions, and most of the emissions come from clinker production [1], [2]Industrial wastes such as blast furnace slag, silica fume and fly ash 2024年7月19日 Carbonation treatment is one of the most promising methods to improve the volume stability of basic oxygen furnace (BOF) slag, but the reasons for the reduced activity of heavily carbonated BOF slag have been rarely investigated This study prepared carbonated BOF slag under the condition of CO 2 concentration at 99 % and pressure at 30 MPa, and Unveiling the impact of carbonation treatment on BOF slag 2021年6月8日 It also highlights recent progress on the use of accelerated carbonation to improve the quality of steel slag in the context of a wide range of influencing factors, such as temperature, reaction Use of steel slag as sustainable construction materials: A review of 2022年7月18日 In some studies, it has been demonstrated that using a composite mineral admixture known as groundgranulated blastfurnace slagsteel slag composite binder can increase the fluidity of fresh concrete, lengthen the cement’s setting time, improve the pore structure of hardened paste and create concrete with a satisfactory compressive strength A Comprehensive Review on the Ground Granulated Blast Furnace Slag
(PDF) Understanding the Properties of Slags ResearchGate
2013年1月15日 Frequent slag sampling and analysis is still the most common method used to investigate and improve slag operation The activities of “FeO” in the slag were calculated from the experimental 2024年3月28日 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 slags from four steelmaking plants The physical and mechanical characteristics and volume stability of steel slags were analyzed through density, water Research on the Properties of Steel Slag with Different MDPI2019年1月1日 Electric arc furnace steel slag was modified by wastes in hotstage process with the aim to improve the cementitious activity Effect of basicity on cementitious activity of modified steel slag Effect of basicity on cementitious activity of 2024年4月28日 Steel slag is a byproduct of the steel industry and usually contains a high amount of fCaO and fMgO, which will result in serious soundness problems once used as a binding material and/or aggregates To A Review on the Carbonation of Steel Slag: Properties,
New Research Progress in Activation of Steel Slag Activity
2014年9月1日 In this paper,different activators were used to improve the steel slag activity,such as water glass,sodium hydroxide,sodium sulfate,silica fume,sodium aluminate and compound activatorThe effect of Expand 3 Save Influences of the powder of steel slag and granulated blast furnace slag by mechanical activation2024年2月2日 Steel slag is considered to improve the road performance of cold mixed asphalt (CMA) due to its superior physicochemical characteristics To realize the potential application of steel slag in CMA pavement, the alkalinity, hydration activity, pore characteristics, and threedimensional (3D) morphology were quantitatively characterized and evaluated based on the X Quantitative characterization and evaluation of key 2021年10月12日 The original magnesium slag has poor desulfurization activity, so modification treatments are needed to improve its desulfurization activity In this article, magnesium slag was modified by quenching hydration The crystal structure and morphology characteristics were obtained by XRD and TEM And to further understand the relationship between crystal Crystal structure of a new highperformance magnesium slag2017年9月21日 Apply the slag ion theory to calculate the distribution ratio formula of phosphorus in the smelting reduction process of highphosphorus iron ores, according to which it is found that main factors affecting the distribution ratio of phosphorus are ferrous oxide activity, phosphorus capacity of slag, and phosphorus activity coefficient in molten ironImpact of slag composition activity on the behavior of
Recycling of lithium slag as a green admixture for white reactive
2020年6月17日 A content of lithium slag within 11% did not significantly affect the Hunter whiteness Lithium slag has a certain degree of pozzolanic activity, which can play a chemicalfilling role in WRPC and effectively improve the microstructure Lithium slag reduced the early hydration of WRPC, but improved the late hydration process2024年2月23日 However, steel slag contains a large number of lowactivity γC 2 S, as well as FeO, MgO, and MnO in the hightemperature action of the RO phase formed by melting, both of which affect the activity of the steel slag to a certain extent; thus, a certain amount of steel slag mixed with a higher activity of solid waste can be considered to improve the conditions of its Analysis of Hydration Mechanism of Steel SlagBased 2018年12月20日 In this study, one new way to utilize lithium slag in sulphoaluminate cement system was attempted Lithium slag was processed with wet grinding, in order to obtain fine particles and facilitate the ions dissolution Addition of wetgrinded lithium slag was expected to improve the early strength of sulphoaluminate cementUtilization of lithium slag by wetgrinding process to improve the 2011年2月1日 The conventional techniques used to improve the hydration activity of steel slag powder include carbonization treatment [7,8], hightemperature reconstruction [9, 10] A Discussion on Improving Hydration Activity of Steel Slag by
Effect of carbonation curing on the characterization and properties
2024年11月1日 Steel slag (SS)based cementitious materials usually exhibit poor bulk stability, poor early activity and low mechanical strength, which greatly limits the consumption of SS in construction materials Carbonation curing can not only control volume expansion but also improve the mechanical properties and durability of SSbased cementitious 2022年9月16日 The pozzolanic activity of magnesiumrich nickel slag (HMNS) was improved by remelting and quenching method, the changes of mineralogical phase, microstructure, elements distribution of HMNS remelted and quenched by water were characterized, and the dissolution of Si, Al and Ca required for geopolymerization was also determined The dissolution amount of Pozzolanic activity enhancement of magnesiumrich nickel slag Blast furnace slag and steelmaking slag, as the main accessory products of iron and steel smelting, are piled up in large quantities due to their huge output, high treatment difficulty and low comprehensive utilization rate, which has a serious Effect of high temperature tempering on the phase 2023年5月20日 Proper calcination can improve the activity of the material The Frattini test results of electrolytic manganese slag calcined at different temperatures are shown in Fig 8 When the calcination temperature is 800 °C, the numerical point is Pozzolanic activity evaluation methods of solid waste: A review
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Mineralography and Comprehensive Utilization of Highly Activity Steel Slag
2018年4月18日 The study of comprehensive utilization of highly activity steel slag could reduce the accumulation of steel slag and improve the environmental quality The theoretical contents of minerals in highly activity steel slag were calculated, and the XRD and mineragraphy were performed to analyze the reasons for the increased activity of steel slag2011年2月28日 Raising the fineness of steel slag is beneficial for its hydration activity [16] However, the RO phase of steel slag exhibits rather poor grindability Grinding steel slag into the status with specific area more than 450 m 2 /kg demands too much energy and besides, grinding RO phase further finer would not help to improve the cementitious A discussion on improving hydration activity of steel slag by 2020年9月24日 Steel slag is a large amount of residual material produced in the process of steel manufacturing With the requirements of sustainable development in China, the utilization of steel slag has become a hot issue Through an indepth study on steel slag, it is apparent that it has been widely used in various fields in recent years The resource utilization of steel slag is not Sustainable Utilization of Steel Slag from Traditional Industry and 2021年6月30日 Utilization of steel slag as a supplementary cementitious material is limited due to its poor volume stability and weak hydration activity Moreover, the alkaline minerals of steel slag make it highly susceptible toward carbonation Thus, this study aims to analyze the impact of accelerated precarbonation on the volume stability and hydration activity of steel slag To this Effect of accelerated precarbonation on hydration activity and
Preparation of High Activity Admixture from Steel Slag, Phosphate Slag
aggregate component in asphalt mixtures to improve various properties of asphalt mixtures [4,5] Also, steel slag has many other uses, such as soil improvement, sewage treatment, or as sintering flux [6,7] However, the utilization rate of steel slag in China is relatively low at present, not more than 40% [8] Secondly, the2015年2月15日 Steel slag, a byproduct from the steelmaking process, is a potential mineral admixture for cement or concrete production []C 3 S, C 2 S, C 4 AF, and C 2 F are common minerals in steel slag, which endow steel slag with cementitious properties [2, 3]The main hydration products of steel slag include C–S–H gel and Ca(OH) 2, which are very similar to Hydration properties of steel slag under autoclaved condition2023年3月7日 The results show mechanical excitation can effectively improve the particle size distribution and cementitious activity of steel slag The best mechanical properties are obtained when grinding for 20 min and adding 10% Study on the Early Effect of Excitation Method on the 2021年6月16日 Carbide slag was used as an activator to improve the activity of anhydrous phosphogypsum Carbide slag could greatly improve the mechanical strength of anhydrous phosphogypsum than K2SO4 The compressive strength of 11 wt% carbide slag and 1 wt% K2SO4 activated anhydrous phosphogypsum increased greatly to 86 MPa at 3 d, and 119 Laboratory Evaluation for Utilization of Phosphogypsum Springer
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Microstructure and Durability of Ground Granulated Blast Furnace Slag
Ground granulated blast furnace slag is an ecofriendly material with regard to its production process and usage In this study, slag cement (SC) is used to prepare different slag cement mortar (SCM) mixes to study mortar microstructure perspectives, physiochemical properties, mechanical properties and durability performance The tests also included the evaluation of 2006年3月1日 In this study, activator, metakaolin, and silica fume were used as a compound activator to improve the activity of steel slag powder The influence of activator, steel slag powder, Effect of fine steel slag powder on the early hydration process of 2022年11月15日 The activity of steel slag can be noticeably improved by wetgrinding; this also produces subtle changes in the its phase, for example, This indicates wetgrinding not only improves the reactivity of steel slag, but also makes it easier to leach heavy metals, Mechanical activation of steel slag to prepare supplementary 2024年3月25日 During the slow cooling process of steel slag, crystals of the inert ore phase (C 2 F) and active ore phase (C 2 S, C 3 S) grow dependently, and the irregular interlacement and coating between ore phases strongly affect the hydration activity of the active ore phase in steel slag Therefore, in this article, a typical alkaline activator, NaOH, was selected, the solvent The mineral phase evolution characteristics and hydration activity
An approach to improve the reactivity of basic oxygen furnace slag
2023年4月3日 Results indicated that the activity of steel slag was very low more calcium carbonate and pozzolanicactive amorphous gel phases produced in mineralized steel slag powder improve its reactivity2023年11月3日 Utilizing lithium slag to improve the physicalchemical properties of alkaliactivated metakaolinslag pastes: Cost and energy analysis Author links open overlay The average glass phase content in the GBFS exceeds 90 %, thereby exhibiting a high level of pozzolanic activity Consequently, GBFS is also often used as a precursor Utilizing lithium slag to improve the physicalchemical properties 2021年5月16日 For the research, after the steel slag calcined at 900 °C, relatively stable Fe 2 O 3 and MgFe 2 O 4 crystals formed on the surface of the steel slag to produce a loose porous structure, which was conducive to the contact between the active components in the steel slag and the reactants to improve the catalytic activity of the steel slagA Review of Modified Steel Slag Application in Catalytic Pyrolysis 2023年10月31日 In summary, steel slag admixture reduces the early strength of concrete and slow setting rate [13], while phosphate slag admixture leads to a long setting time, low early strength, and rapid growth in the later period [19]On the contrary, the limestone powder can accelerate the hydration rate, fill the pores, improve the working properties of concrete and Article Preparation of High Activity Admixture from Steel Slag