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
Coal gangue Mechanical properties
Study on mechanical properties and size effect of coal gangue
2022年12月19日 A mesoscopic numerical model of coal gangue concrete is established to simulate the uniaxial compression of coal gangue concrete Based on the mechanical 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 weight impact test, and tExperimental Study on Dynamic Mechanical 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 Comparative study on mechanical and environmental properties 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
Experimental study on mechanical properties of coal
In this study, calcined gangue, slag, fly ash, and recycled aggregate were used as raw materials, the influence of SFs (0–125 vol%) was first explored by single factor analysis, and on this basis, the effect of nanoAl 2 O 3 (NA) (0–2 wt%) 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 2021年6月14日 In order to study the freezethaw damage law of the basic mechanical properties and fracture performance of coal gangue concrete, four kinds of coal gangue concrete Research on Basic Mechanical Properties and Fracture Damage of 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 Effect of raw coal gangue coarse aggregates on mechanical
Experimental study of microorganisminduced calcium carbonate
2022年2月12日 The treatment of coal gangue solid waste and microbially induced calcium carbonate precipitation (MICP) consolidate technology is a focus of research at home and abroad MICP technology was used to solidify and cement coal gangue particles and endows them with a certain strength The process does not use the traditional cementitious material (Portland 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 analyzedStudy on the calorific value and cementitious properties of coal gangue Coal gangue is one of the largest mine solid wastes in China, MEI Z, DOU YW, ZHANG YZ, et al Effects of the variety and content of coal gangue coarse aggregate on the mechanical properties of concrete[J] Construction and Research Progress on Comprehensive Utilization of 2024年11月1日 Hybrid fiber reinforced ultrahigh performance coal gangue geopolymer concrete (UHPGC): Mechanical properties, enhancement mechanism, carbon emission and economic analysis Author links open overlay panel Jun Zhao a, Aiguo Wang a, Zuhua Zhang a b, JianGuo Dai c, Kaiwei Liu a, Yueming Wang a, Yingjie Chu a, Daosheng Sun aHybrid fiber reinforced ultrahigh performance coal gangue
Study of Mechanical Properties and Durability of AlkaliActivated Coal
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 Incorporation of coal gangue in the concrete mixes can realize utilization of the solid waste and reduce extraction/use of natural aggregates To improve the mechanical properties of coal gangue concrete, this paper studies use of steel fibre together with coal gangue coarse aggregate, coal gangue fine aggregate/sand in various concrete mixesMechanical properties and microscopic characteristics of steel 2020年2月10日 Fly ash (FA) and coal gangue (CG) are industrial wastes with large discharges Their low comprehensive utilization results in a large accumulation, encroaching on cultivated land, generating dust and polluting water sources, but their high aluminum and silicon content means that they have the potential pozzolanic properties after being activated by grinding, Mechanical properties and chloride permeability of green 2024年11月1日 Hybrid fiber reinforced ultrahigh performance coal gangue geopolymer concrete (UHPGC): Mechanical properties, enhancement mechanism, carbon emission and economic analysis Author links open overlay panel Jun Zhao a, Aiguo Wang a, Zuhua Zhang a b, JianGuo Dai c, Kaiwei Liu a, Yueming Wang a, Yingjie Chu a, Daosheng Sun aHybrid fiber reinforced ultrahigh performance coal gangue
Effects of Kaolin Addition on Mechanical Properties for Cemented Coal
2021年6月21日 In this investigation, six groups of cemented coal ganguefly ash backfill (CGFB) samples with varying amounts of kaolin (0, 10, 20, 30, 40, and 50%) instead of cement are prepared, and their mechanical properties are analyzed using uniaxial compression, acoustic emission, scanning electron microscopy, Xray diffraction, and Fourier transform infrared 2024年2月28日 For the grading characteristics of coal gangue in the hollow zone in underground filling, the state of pressure and the mechanical properties of coal gangue filling materials under different Study on the macro–micro evolution of compaction Nature2019年10月10日 Mechanical properties of calcined coal gangue based geopolymer recycled concrete Number Cube compressive strength (Mpa) Splitting tensile strength (Mpa) 3 days This is the reason why calcined coal gangue can improve the mechanical properties of the concrete at an early stage Download: Download highres image (1MB) Download: Mechanical properties and microstructures of hypergolic and calcined 2024年1月12日 Mechanical properties and damage evolution of cemented coal ganguefly ash backfill under uniaxial compression: Effects of different curing temperatures Constr Build Mater , 305 ( 2021 ) , Article , 101016/jconbuildmat2021Mechanical properties under triaxial compression of coal gangue
Study on mechanical properties and size effect of coal gangue
2022年12月19日 Therefore, when simulating the mechanical properties of coal gangue, its tensile properties are ignored The compressive strength of the coal gangue in different regions varied significantly The relationship between compressive strength and elastic modulus was obtained by data fitting, as shown in Eq2022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 Its2023年2月25日 With the gradual development of the coal industry, many scientists have found that different types of coal, such as coking coal, lignite and anthracite, have great differences in their mechanical properties and microstructure, and the mechanical response mechanisms and failure forms under different environments and conditions also have great differences [4,5]Microstructure, Characterization and Mechanical Properties of Coal 2023年8月1日 Coal gangue is a mixture of carbonaceous, argillaceous and sandy shale The main chemical components are SiO 2 (about 467%), Al 2 O 3 (about 1545%), and a small amount of CaO, Fe 2 O 3 and other metal oxides [9]These chemical and mineral properties similar to natural aggregates (NA) make it possible to use coal gangue as aggregate to Wrapped coal gangue aggregate enhancement ITZ and mechanical property
Research on Basic Mechanical Properties and Fracture Damage of Coal
2021年6月14日 In order to study the freezethaw damage law of the basic mechanical properties and fracture performance of coal gangue concrete, four kinds of coal gangue concrete specimens with different replacement rates of coal gangue coarse aggregate were designed, and then, the basic mechanical test and threepoint bending loading were carried out under different times of 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 2022年9月15日 The machinability, as well as the mechanical, microscopic, and toxicity consolidation properties of geopolymers prepared from coal gangue, are summarized and analyzed The results indicate that the coal gangue geopolymers can have higher mobility and mechanical strength than cementbased composites by adjusting high calcium element Activation Mechanism of Coal Gangue and Its Impact on the Properties DOI: 101016/jjobe2023 Corpus ID: ; Mechanical properties prediction of lightweight coal gangue shotcrete @article{Sun2023MechanicalPP, title={Mechanical properties prediction of lightweight coal gangue shotcrete}, author={Junbo Sun and Shukui Liu and Zhanguo Ma and Haimin Qian and Yufei Wang and Hisham Alazzani and Xiangyu Wang}, Mechanical properties prediction of lightweight coal gangue
Properties of FiberReinforced Geopolymer Mortar
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 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 The Sustainable Utilization of Coal Gangue in Geotechnical and 2012年5月1日 Request PDF Mechanical Properties of Coal Gangue Used as Subgrade Filling In view to the gangue characteristic and the roadbed padding's essential requirements, the improving experiments for Mechanical Properties of Coal Gangue Used as Subgrade Filling2024年4月15日 Coal gangue is a byproduct of coal mining and processing, and according to incomplete statistics, China has amassed a substantial coal gangue stockpile exceeding 2600 large mountains, which poses a serious threat to the ecological environment Utilizing gangue as a coarse aggregate to produce gangue concrete (GC) presents a promising avenue for Enhancing Fatigue Performance of Coal Gangue Concrete (CGC
Study on Preparation of Coal Gangue‐Based Geopolymer
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 8The effects of red mud and coal gangue powder on the physical properties, workability, and mechanical properties of concretes were evaluated, and the hydration reaction mechanisms were elucidated through microanalysis Furthermore, the reaction process was investigated through thermogravimetric analysisSynergistic action and effect mechanism of coal gangue powder 2019年9月10日 Enhanced mechanical properties and durability of coal gangue reinforced cementsoil mixture for foundation treatments Author links open overlay panel Guangcheng Long a b , Linhao Li a b , Wengui Li b 1 , Kunlin Ma a , Wenkui Dong b , Enhanced mechanical properties and durability of coal gangue 2022年12月1日 Coal gangue, a waste produced during coal mining, has been regarded as the largest source of industrial waste in China It is estimated that the production of 1 t coal generates 01–025 t coal gangue [1], and the total stockpile of coal gangue exceeds 6 billion tons in China [2], [3]The coal gangue not only occupies agricultural land in large areas but triggers Exploring calcined coal gangue fines as the total substitute of fly
Thermal Activation of HighAlumina Coal Gangue Auxiliary MDPI
2024年1月14日 In this paper, a new preparation technology is developed to make highalumina coal gangue (HACG) auxiliary cementitious admixture by calcining HACG–Ca(OH)2 (CH) mixture HACG powders mixed with 20 wt% CH were calcined within a temperature range of 600–900 °C, and the thermal transformation and mineral phase formation were analyzed The hydration 2024年3月14日 Coal gangue (CG) is a residual product from coal mining and washing processes The reutilization of CG to produce geopolymers is a lowcarbon disposal strategy for this material In this study, the calcined CG (CG700°C) was used as aluminosilicate precursors, and the effects of alkali activators (ie, Na2SiO3/NaOH, NaOH concentration, and liquid–solid) Geopolymerization of Coal Gangue via AlkaliActivation MDPI2022年12月12日 To study coal gangue foam concrete's mechanical properties and microstructure, various materials such Effect of Fly Ash Content on Properties of Fly AshCoal Gangue Foam Concrete, Adv Mater Res (2011) 26170 Google Scholar [50] W Luo, H Wang, X Li, et al Mechanical Properties of Reactive Powder Concrete with Coal Experimental study on the physicomechanical properties and 2019年9月17日 Coal gangue is used to prepare flake nanomullite with a molten salt method In order to increase the utilization value, corundum composite ceramics were prepared from the nanomullite and aluminaSynthesis and Mechanical Properties of Mullite Ceramics with Coal
Effects of the variety and content of coal gangue coarse
2019年9月30日 A better understanding of the basic properties of coal gangue coarse aggregate concrete could lead to new theoretical findings, For RAC, although the mechanical properties of R and the cement mortar matrix are better than those of N, which should have led to fewer interface cracks in the concrete, 2024年8月23日 Due to the abundance of microcracks, voids, and a higher carbon content, coal gangue displays increased water absorption and crushing value, while also having a lower apparent density compared to natural aggregates [15], [16]These shortcomings lead to reduced durability and mechanical properties when coal gangue is employed as a concrete aggregate, Enhancing coal gangue aggregates with fly ashcement slurry 2022年11月9日 The feasibility of compositeactivated coal gangue (CACG) as the primary cementitious material for concrete was experimentally studied in this paper The effects of concrete strength grade on slump and slump flow, compressive strength, splitting tensile strength, axial compressive strength, elastic modulus, and drying shrinkage of alkaliactivated coal Mechanical Properties and Drying Shrinkage of AlkaliActivated Coal Qin, Libing, Xu, Zhong, Liu, Qingfeng, Bai, ZhiJie, Wang, Chunjian, Luo, Qiang and Yuan, Yuan "Experimental study on mechanical properties of coal gangue base geopolymer recycled aggregate concrete reinforced by steel fiber and nanoAl 2 O 3" REVIEWS ON ADVANCED MATERIALS SCIENCE 62, no 1 (2023): Experimental study on mechanical properties of coal gangue
Study on the effect of activated coal gangue on the mechanical
2023年5月9日 31 Effect of activated coal gangue on the mechanical properties of cement Figure 4 shows the flexural and compressive strengths of pure cement specimens, specimens with 30wt% activated CG, and specimens with 30wt% quartz powder at 3 2024年8月23日 The mechanical properties of modified coal gangue aggregate concrete were also investigated This study provides a theoretical basis for exploring more effective modification methods and promotes the application of CGA in concrete Enhancement mechanism of microbial mineralization modified coal gangue 2021年10月25日 A high geothermal heat affects the physical properties of cemented coal ganguefly ash backfill (CGFB) The mechanical properties, damage evolution, elastic modulus, and peak strain of CGFB under uniaxial compression were investigated at different curing temperatures (20℃, 35℃, and 50℃) and curing ages (3, 7, 14, and 28 days), and the stress Mechanical properties and damage evolution of cemented coal gangue 2023年12月1日 A mesoscale numerical model was developed by Wen et al [29] to study the mechanical properties and size effect of coal gangue concrete Their results showed that the size effect of coal gangue concrete is greater than ordinary concrete and recommended conversion factors of 09 and 115 for cube sizes of 100 mm and 200 mm, respectivelyMechanical properties prediction of lightweight coal gangue