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
Physical and mechanical properties of coal gangue
Comparative study on mechanical and environmental properties
2023年10月12日 As one of the main mineral wastes in China, coal gangue has shown great potential in concrete production as aggregates due to the good physical and chemical 2024年7月12日 In summary, CG exhibits poor physical properties and inert chemical properties, which emphasize the necessity of modification through activation or pretreatment Only after Review Highcapacity utilization of coal gangue as supplementary 2020年4月30日 This paper investigated the influence of physical and chemical properties of coal gangue under different geological conditions and aggregate replacement rate (0, 30%, 60%, Effect of Physical and Chemical Properties of Coal Gangue Under 2020年11月23日 In order to study the static and dynamic mechanical characteristics of the coal gangue concrete used in the mine support structure, the compressive strength test, the drop Experimental Study on Dynamic Mechanical Properties of Coal
Activation Mechanism of Coal Gangue and Its Impact
2022年9月15日 In this paper, the physical and chemical characteristics, including the heavy metal content, of coal gangue from different producing areas are described Then, the mechanism of physical activation (mechanical and 2022年9月30日 To improve the performance of CG ceramsite lightweight aggregate concrete (CGCLAC), it is necessary to improve the physical and mechanical properties of coal gangue Preparation of coal gangue ceramsite highstrength concrete and 2020年2月5日 Mineralogical and chemical characteristics of coal gangue are comparable to coal combustion residues like coal ash and fly ash which are widely used in bulk civil engineering Characterization studies on coal gangue for sustainable geotechnicsresearch results provide a reference for classifying and utilizing of coal gangue and improving the utilization rate of CGC Keywords Coal gangue Coal gangue concrete Xray diffraction Effect of Physical and Chemical Properties of Coal Gangue Under
Experimental study on basic properties of coal gangue aggregate
2010年12月1日 The results show that, the main composition of coal gangue is SiO2, which may result in ASR damage of concrete The SEM experiments indicate that, porestructure of coal 2024年8月23日 Enhancing coal gangue aggregates with fly ashcement slurry: Synergistic effects of CO 2 mineralization on physical and mechanical properties Author links open overlay panel Shuqiong Luo a , Sheng Gao a , Lei Yang a , Songhui Liu a , Enhancing coal gangue aggregates with fly ashcement slurry 2020年5月1日 This paper investigated the influence of physical and chemical properties of coal gangue under different geological conditions and aggregate replacement rate (0, 30%, 60%, 100%) on the compressive Effect of Physical and Chemical Properties of Coal Gangue 1 Introduction Hugh extraction and consumption of natural aggregate has brought a heavy burden to the ecological environment At the same time, a large amount of coal gangue (Huang et al, 2018; Li and Wang, 2019; Yiran et al, Mechanical properties and microscopic characteristics
Study on mechanical properties of coal gangue and fly ash
2023年10月11日 Backfill mining can effectively alleviate the problems of surface collapse and ecological water pollution, in which the mechanical properties of backfill materials, including coal gangue and coal fly ash, have a decisive role in the effect of filling mining In this study, we analyze the permeability characteristics of coal gangue filler through a set of homemade 2024年3月14日 This study aims to assess the impact of utilizing raw coal gangue aggregates (RCGAs) on the mechanical behaviors and compressive stress–strain responses of concrete For this purpose, a total of 90 concrete specimens were prepared, varying in RCGA replacement ratios of 0, 30%, 50%, 70%, and 100% and watertocement (w/c) ratios of 037 and 047Effect of raw coal gangue coarse aggregates on mechanical properties 2024年7月1日 Geopolymers, as a novel cementitious material, exhibit typical brittle failure characteristics under stress To mitigate this brittleness, fibers can be incorporated to enhance toughness This study investigates the effects of varying polypropylene fiber (PPF) content and fiber length on the flowability, mechanical properties, and flexural toughness of coal gangue Properties of FiberReinforced Geopolymer Mortar Using Coal Gangue 2019年12月1日 The physicmechanical properties of coal gangue brick are not only related to the composition of raw materials, and then these irons migrate to other media through a series of complex physical and chemical reactions, becoming the main pollution source of coal gangue filling (Sracek et al, 2012, Comprehensive utilization and environmental risks of coal gangue: A
Experimental Study on Basic Properties of Coal Gangue Aggregate
The physical and mechanical properties of coal gangue aggregate were investigated firstly,and then the microstructure characteristics of different kinds of coal gangue aggregate were analyzedThe mechanical property of concrete containing coal gangue aggregate was also measuredThe results show that, the main composition of coal gangue is SiO2,which may Download scientific diagram Physical properties of coal gangue aggregate from different origins in China from publication: Application of Coal Gangue as a Coarse Aggregate in Green Concrete Physical properties of coal gangue aggregate from different 2020年12月7日 Herein, a new geopolymer is recognized as a potential alternative cementing material of ordinary Portland cement (OPC), which is used for reducing carbon emissions and efficiently recycling the waste Therefore this paper mainly studied the alkaliactivated coal gangueslag concrete (ACSC) was prepared by using the coal gangueslag and Na2SiO3 and Study of Mechanical Properties and Durability of AlkaliActivated Coal Physical properties of coal gangue, by studying the effect of different PET fiber content on the mechanical properties of coal gangue fine aggregate concrete with a replacement rate of 50%, Physical properties of coal gangue, including property
The Sustainable Utilization of Coal Gangue in Geotechnical and
2022年4月6日 Abstract Among coal miningrelated wastes, coal gangue (CG) is the heterogeneous waste generated during the mineral processing or coal washing phase of coal mining A thorough understanding of environmental concerns associated with the current model of 2023年10月12日 As one of the main mineral wastes in China, coal gangue has shown great potential in concrete production as aggregates due to the good physical and chemical properties Research indicates that incorporating coal gangue into concrete not only safeguards the environment but also yields remarkable benefits [10] , [25] , [27] , [51] Comparative study on mechanical and environmental properties of coal 2024年9月7日 The persistent reliance on coal has resulted in the accumulation of substantial coal gangue, a globally recognized problematic solid waste with environmental risks Given the coal gangue properties and global land degradation severity, the resourceful utilization of coal gangue as soil conditioners is believed to be a universally applicable, costeffective, high Opportunities, challenges and modification methods of coal gangue Coal gangue is one of the largest mine solid wastes in China, and its discharge and stockpiling have caused resource waste, environmental pollution and other problems Starting from the resource characteristics of coal gangue, this paper systematically discusses the ways and research status of coal gangue resource utilization, mainly including: extracting and recovering Research Progress on Comprehensive Utilization of Coal Gangue
Study on the calorific value and cementitious properties of coal gangue
2024年2月2日 Coal gangue of a certain particle size was subjected to calcination treatment, and the characteristics of coal gangue before and after calcination were analyzed A paste was prepared by replacing 30% of cement with 0–1 mm coal gangue, and macroscopic mechanical properties and XRD, TGDTG, FTIR, and SEM at the microscopic level were analyzed2010年12月1日 The physical and mechanical properties of coal gangue aggregate were investigated firstly, and then the microstructure characteristics of different kinds of coal gangue aggregate were analyzedExperimental study on basic properties of coal gangue aggregate2023年10月12日 Because of high water absorption of coal gangue, the degrading of mechanical properties for concrete becomes more serious in freeze–thaw environment [15], [44], [53] Therefore, the concrete with coarse aggregates of coal gangue shows poor properties at high replacement ratios, which limits its application [7], [35]Comparative study on mechanical and environmental properties of coal 2021年9月13日 High environment temperatures in deep coal mines may affect the strength and stability of cemented Coal GangueFly Ash Backfill (CGFB) This study aimed to analyze the consequences of temperature on the physical and mechanical Physicomechanical and microstructure properties of cemented coal
Experimental Study on the Physical and Mechanical Properties
2023年12月21日 Ensuring the structural safety of cemented gangue backfill (CGB) is crucial for safe mining operations However, the complex mine water environment makes it susceptible to erosion by chemical ions, which have a significant time dependency In this study, we evaluated the appearance, mass change, and unconfined compressive strength (UCS) of CGB during 2023年3月3日 Coal gangue (CG) is a bulk industrial waste [17], [18]About 01–015 tons of CG were emitted during the mining and production of each ton of coal Accordingly, nearly 300 million tons of CG are generated in China every year [19], [20]The stockpiling of CG would not only occupy a lot of land resources, but also cause serious environmental pollution [21], [22], [23]Preparation of ceramsite from leadzinc tailings and coal gangue 2024年11月1日 Using coal gangue as subgrade and the basic physical parameters were obtained G et al Enhanced mechanical properties and durability of coal gangue reinforced cementsoil mixture for Investigating the compaction and the mechanical behaviors of coal 2021年8月2日 In this study, coarse aggregates were replaced with coal gangue at a constant substitution rate of 40% to promote the application of coal gangue in concrete production The modification effect of FA content on the working and mechanical properties of coal gangue concrete (CGC) and its modification mechanism were revealedEffect and mechanism of coal gangue concrete modification by fly
Activation Mechanism of Coal Gangue and Its Impact on the Properties
2022年9月15日 After physical activation, coal gangue is used in geopolymer preparation with a chemical activator bility, mechanical properties, microstructure, and toxicity consolidation properties of the2022年10月27日 With the gradual participation of calcined coal gangue and limestone powder in the reaction, the structurally dense monocarboaluminate and hemicarboaluminate were formed, while the secondary hydration of calcined coal gangue and Ca(OH) 2 was promoted to generate C–S–H gel, which significantly improved the mechanical properties of the cementitious materialProperties and Hydration Mechanism of Cementitious Materials 2024年2月1日 Therefore, this study systematically investigated the basic physical and chemical properties of coal gangue and municipal sludge samples, the ecological environment safety risk of heavy metals and Representative coal gangue in China: Physical and chemical properties 2024年5月1日 Due to the physical and chemical properties of coal gangue and natural aggregate, under feasible and reasonable technical conditions, coal gangue is used to replace the gravel in concrete The application of coal gangue as aggregate in civil engineering materials is the direction of resource utilization at present [3, 4]Axialcompression performance and numericalsimulation analysis
Preparation and characterization of glass–ceramic foams with
2015年9月26日 Glass–ceramic foams were fabricated at a relatively low temperature by incorporating coal gangue, waste quartz sand and sintering additives in different proportions Sintering and the foaming behavior of the foams were studied using thermal, Xray techniques and morphological characterization, followed with physical and mechanical properties 2023年3月30日 To achieve sustainable utilization of a large amount of mine solid waste, this study investigated the performance of selfcompacting coal ganguefilled backfill (SCFB) containing biomass fly ash (BFA) generated from biomass power plants as a supplementary cementitious material (SCM) The correlations between the physical structure and Mechanical Properties and Microstructural Features of Biomass 2024年6月24日 In paste backfill mining, cemented coal gangueflyash backfills (CGFB) can effectively control surface subsidence CGFBs are subjected to water pressure and chloride ion erosion in the gob Therefore, an improved understanding of the influence of pressurized water and chloride salt erosion on the performance of CGFB is crucial for realizing effective green Mechanical properties of cemented coal gangue–flyash backfill In order to explore the engineering application potential of coal ganguebased geopolymer concrete (CGGPC), this article formulated the fiberreinforced coal ganguebased geopolymer concrete (FRCGGPC) The mechanical properties Mechanical and microscopic properties of fiber
Enhancing coal gangue aggregates with fly ashcement slurry
2024年8月1日 Enhancing coal gangue aggregates with fly ashcement slurry: Synergistic effects of CO2 mineralization on physical and mechanical properties2024年3月1日 Coal ganguebased geopolymer (CGGP) is one of the hot spots existing in the recycling of coal gangue resources due to its good comprehensive mechanical properties However, the coal gangue A potential way for improving the dispersivity and mechanical 2021年6月24日 To study the effect of different curing methods on the mechanical properties of coal ganguebased geopolymer concrete, Tables 8 and 9 show the mechanical properties of each specimen when the oven curing temperature is 60°C Table 8Study on Preparation of Coal Gangue‐Based Geopolymer 2022年6月26日 Coal gangue is a kind of industrial solid waste with serious ecological and environmental implications Producing concrete with coal gangue aggregate is one of the green sustainable development requirements This paper reviews the properties and preparation methods of Chinese gangue aggregate, studies the influence of gangue aggregate on Using Chinese Coal Gangue as an Ecological Aggregate and Its
Mechanical Properties of Furnace Slag and Coal Gangue
2021年11月22日 The mechanical properties and strength formation mechanism of cement–flyashstabilized slag–coal gangue mixture were examined using an unconfined compressive strength test, splitting strength test, triaxial test, and scanning electron microscopy to solve the limitations of land occupation and environmental pollution that is caused by fly ash from the 2021年9月13日 High environment temperatures in deep coal mines may affect the strength and stability of cemented Coal GangueFly Ash Backfill (CGFB) This study aimed to analyze the consequences of temperature on the physical and mechanical Physicomechanical and microstructure properties of cemented coal 2024年6月4日 Secondly, the soil in coal gangue wasteland usually has many physical and chemical properties, such as poor physical structure, poor water and fertilizer holding capacity, extremely barren or unbalanced nutrient, high heavy metal content, and so on, in particular, high levels of heavy metals will cause longlasting and almost irreversible Characteristics of Coal Gangue and Present Situation and 2024年3月1日 Basic physical properties, Investigation of the effect of the coal wastes on the mechanical properties of the cementtreated sandy soil Construct Build Mater, 239 Reactivity activation of waste coal gangue and its impact on the properties of cementbased materials–A review Construct Build Mater, 234 A potential way for improving the dispersivity and mechanical
Influence of Coal Gangue Powder on the Macroscopic Mechanical
2023年10月3日 Zhang et al replaced natural sand with coal gangue sand in concrete and observed that coal gangue sand weakened the adhesive properties in the transition zone between mortar and coarse aggregates [ 5 , 34 37 ] Researchers investigated various volcanic ash materials and added them to concrete; These materials could improve the mechanical