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
Research on coal gangue as fine aggregate for concrete
Utilization of coal gangue sand in structural concrete as fine
2024年2月23日 Gangue fine aggregate concrete is used in concretefilled steel tube and reinforced concrete stubs The increase in rGS increases the ductility of the coal GSCFST 2022年9月30日 Therefore, a more direct and effective method of using CG is to use it as a coarse or fine aggregate in concrete after crushing 14, 15, 16 However, CG aggregates Preparation of coal gangue ceramsite highstrength concrete and 2021年11月11日 Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green Application of Coal Gangue as a Coarse Aggregate in Green Coal gangue (CG) is one of the largest industrial solid wastes in China The utilization of coal gangue as concrete aggregate can not only solve environmental pollution,but also make up for Research Progress on Coal Gangue Aggregate for Concrete
Influence of coal gangue aggregate grading on strength
2015年1月10日 This paper investigates the feasibility of using coal gangue as coarse and fine aggregates in concrete as well as how the coal gangue aggregate grading affects concrete 2024年2月1日 This paper investigates the feasibility of using coal gangue as coarse and fine aggregates in concrete as well as how the coal gangue aggregate grading affects concrete Utilization of coal gangue sand in structural concrete as fine 2023年10月3日 Microscopic analysis revealed that CGP increased the Ca/Si ratio in cement paste, impeding hydration reactions, resulting in a looser internal structure and reduced concrete strength These findings are anticipated to Influence of Coal Gangue Powder on the Macroscopic 2024年2月23日 Gangue fine aggregate concrete is used in concretefilled steel tube and reinforced concrete stubs The increase in rGS increases the ductility of the coal GSCFST Utilization of coal gangue sand in structural concrete as fine
.jpg)
Valorization of calcined coal gangue as coarse aggregate in concrete
2021年8月1日 This paper studies the effect of calcination processes at 450 °C and 750 °C on the mineral and chemical compositions, microstructure and suitability of coal gangue as 2015年1月10日 This paper investigates the feasibility of using coal gangue as coarse and fine aggregates in concrete as well as how the coal gangue aggregate grading affects concrete properties Nine mixed concrete samples were prepared with the value n in Fuller’s curve ranged from 044 to 068 The coal gangue aggregate with n = 062 shows the highest density, water Influence of coal gangue aggregate grading on strength 2024年2月23日 According to the particle size of the aggregate, coal gangue aggregate can be divided into coal gangue coarse aggregate and coal gangue fine aggregate, namely coal gangue sand (GS) Compared with coal gangue coarse aggregate concrete, there is less research on coal gangue sand concreteUtilization of coal gangue sand in structural concrete as fine Download Citation On Jan 1, 2024, Tong Zhang and others published Mechanical and environmental performance of structural concrete with coal gangue fine aggregate Find, read and cite all the Mechanical and environmental performance of structural concrete
Utilization of coal gangue sand in structural concrete as fine
Download Citation On Feb 1, 2024, Tong Zhang and others published Utilization of coal gangue sand in structural concrete as fine aggregate towards sustainable production Find, read and cite 2021年8月2日 Obviously, coal gangue concrete (CGC) made by using coal gangue as coarse aggregate to replace a part of gravel is simpler and more economical, with stronger feasibility and practicability [7] However, a coal gangue aggregate has a looser structure than ordinary crushed stone, with more flake particles and pores; consequently, its performance highly fluctuatesEffect and mechanism of coal gangue concrete ScienceDirect2021年11月11日 Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productions The physical and chemical properties of rock and spontaneouscombustion coal gangue are generally suitable for being used as a coarse aggregate in green concrete Application of Coal Gangue as a Coarse Aggregate in Green Concrete Research Article Study on Mechanical Properties of PET FiberReinforced Coal Gangue Fine Aggregate Concrete Yanlin Huang and An Zhou College of Civil Construction and Environment, Hubei University Study on Mechanical Properties of PET FiberReinforced Coal Gangue Fine
Utilization of Coal Gangue Aggregate for Railway Roadbed
2020年6月4日 As a massive solid waste, the high valueadded utilization of coal gangue has received more and more attention in China This study focuses on the utilization of coal gangue aggregate in railway engineering for coal transportation passage Coal gangue aggregate was employed as highgrade railway subgrade filler andprepared concrete for roadbed drainage 2015年2月1日 In this paper, coal gangue was proposed to replace part of the river sand to produce coal gangue fine aggregate concrete, while waste polyethene terephthalate (PET) bottles were used as raw Influence of coal gangue aggregate grading on strength 2023年12月1日 Basing on basic properties of coal gangue from No1 mine of Pingdingshan Tian’an coal group, authors made coal gangue concrete with coal gangue instead of some aggregate, fly ash and slag A Review Study on Performance Improvement of Coal Gangue as 2021年1月5日 In the second part, 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%, it was found that when Study on Mechanical Properties of PET FiberReinforced Coal Gangue Fine
Valorization of calcined coal gangue as coarse aggregate in concrete
2021年8月1日 Owing to the similarity between coal gangue and natural aggregates, concrete preparation from coal gangue has been considered effective for solving gangue problems In this study, to further improve the onsite utilisation rate of coal gangue, coal gangue was used to replace fine and coarse aggregates for preparing mortar and concrete2015年5月1日 Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productionsMix design for thermal insulation concrete using waste coal gangue Coal gangue, a byproduct produced during the process of coal mining and washing, has a serious impact on the environment Using coal gangue as a concrete aggregate has been proven helpful in potentially improving its value and reducing its environmental impact to a certain extent However, the high water absorption and low strength of coal gangue aggregate cause a poor Frost Resistance of Coal Gangue Aggregate Concrete Modified by Steel 2022年7月1日 Extensive research has demonstrated that coal gangue can be effectively used as a substitute for partial cementitious powder, fine or coarse aggregate in concrete, which not only alleviates the Study on the mechanical behavior and micromechanism of concrete
Activity of calcined coal gangue fine aggregate and its effect on
2015年12月15日 DOI: 101016/JCONBUILDMAT201509050 Corpus ID: ; Activity of calcined coal gangue fine aggregate and its effect on the mechanical behavior of cement mortar @article{Dong2015ActivityOC, title={Activity of calcined coal gangue fine aggregate and its effect on the mechanical behavior of cement mortar}, author={Zuochao Dong and Junwu Xia DOI: 101016/jconbuildmat2024 Corpus ID: ; Utilization of coal gangue sand in structural concrete as fine aggregate towards sustainable production @article{Zhang2024UtilizationOC, title={Utilization of coal gangue sand in structural concrete as fine aggregate towards sustainable production}, author={Tong Zhang and Qingru Zhu and Utilization of coal gangue sand in structural concrete as fine 2024年9月28日 Coal gangue (CG) can be a potential aggregate for concrete production considering its huge production However, its porous structure and high water absorption significantly impact the workability of concrete, restricting its comprehensive utilization This paper proposed a straightforward presoaking technique for CG, where the presoaked CG (PCG) is Internal Curing for Tunnel SelfCompacting Concrete Using Pre 2019年12月1日 The accumulation of considerable coal gangue not only occupies a great deal of land resource, but also results in serious environmental problems, eg, soil pollution, air pollution, and geologic hazards (Stracher and Taylor, 2004)The heat continues to accumulate during the accumulation process, which leads to spontaneous combustion with the oxidization of coal Comprehensive utilization and environmental risks of coal gangue: A
Experimental research on bearing characteristics of coal gangue
2024年4月6日 To make a comprehensive use of coal gangue, it is proposed to use this solid waste instead of fine aggregate to prepare gangue concrete pile for pilenet composite foundation The influences from substitution ratio of fine coal gangue aggregate upon the mechanical parameters of concrete were analyzed through laboratory test, and the labscale model test 2024年5月1日 The coal gangue was collected from Fuxin, northeast of China The large particles of coal gangue were crushed and sieved into gangue fine aggregate, according to GB/T 146842022 [48]The cumulative screening percentage and physical properties of natural and gangue fine aggregate are listed in Table 1 and Table 2 respectively The macroscopic and Mechanical and environmental performance of structural concrete 2021年8月1日 Coal gangue is a byproduct generated from coal mining and washing Using coal gangue as aggregate is an effective approach of valorization this highvolume industrial waste, not only solving the Valorization of calcined coal gangue as coarse aggregate in concrete Download scientific diagram Coal gangue and wasted concrete fine aggregate (a) Coal gangue (b) Wasted concrete from publication: Acoustic Emission and Ultrasonic Characteristics in the Coal gangue and wasted concrete fine aggregate (a)
.jpg)
Influence of Coal Gangue Powder on the Macroscopic Mechanical
2023年10月3日 Currently, research on coal gangue concrete primarily focuses on the use of coal gangue as recycled coarse aggregates and its incorporation as a gel material in concrete [ 22 30 ] Due to its lightweight and highstrength characteristics, researchers have investigated the crushing of coal gangue for use as an aggregate for recycled concreteusing coal gangue as coarse and fine aggregate in concrete is technically feasible and useful When n is 062, the values of the slump, 28day compressive, splitting tensile strength, flexural strength and elasticity modulus of coal gangue concrete reach the highest The highest 7day and 28day compressive strength were 24 MPaInfluence of Coal Gangue Aggregate Grading on Strength Properties 2021年1月25日 Some studies have also been conducted on the structural application of coal gangue aggregate concrete Yan [24] conducted the bending and compressive tests on the reinforced coal gangue aggregate concrete beams and columns respectively Some design methods were proposed for the structural application of coal gangue concreteUtilization of coal gangue as coarse aggregates in structural concrete 2021年1月5日 Therefore, in the second part, based on the coal gangue fine aggregate concrete with a replacement rate of 50%, three groups of coal gangue fine aggregate concrete with different PET fiber content of 01%, 03%, and 05% were designed, respectively, to study the effect of PET fiber content on the mechanical properties and brittleness of coal Study on Mechanical Properties of PET FiberReinforced Coal Gangue Fine
Study on Mechanical Properties of PET FiberReinforced Coal Gangue Fine
coal gangue aggregate concrete The related research focused on the mechanical properties of coal gangue fine aggregate concrete and how to further improve the basic mechanical properties and toughness of coal gangue fine aggregate concrete There is little and no application of PET fiber in coal gangue fineaggregateconcrete 2022年1月25日 This article is part of the Research Topic NonBF Slagbased Green Cementitious Materials View all 20 articles research and development of other new SCMs was needed in the concrete area Coal gangue (CG) and coal gasification slag Aggregates smaller than 475 mm and up to 0075 mm are considered fine aggregateDurability of Concrete With Coal Gasification Slag and Coal Gangue 2011年8月1日 The antifreeze property of coal gangue aggregate concrete can be improved by using high efficiency water reducing agent [42] When the coal gangue aggregate concrete is mixed with slag micro Experimental Research on Durabilities of Coal Gangue Concrete2022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
(PDF) Utilization of Coal Gangue Aggregate for
2020年6月4日 Coal gangue aggregate was employed as highgrade railway subgrade filler andprepared concrete for roadbed drainage (named coal gangue roadbed protecting concrete—CGRPC)2021年10月1日 The macro and microscopic characteristics of coal gangue mortar (CGM) and coal gangue concrete (CGC) were investigated while considering the effects of coal gangue fine aggregate (CGFA Environmentally friendly utilization of coal gangue as In terms of building materials, the chemical composition of coal gangue contains a large number of substances, such as silicon oxide and alumina [11, 12], which is very similar to the coarse and fine aggregate of concreteTherefore, aiming at the resource utilization of coal gangue, it has essential technical and economic significance to realize the resource utilization of waste and Study on the properties of recycled concrete mixed with coal gangue 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 Using Chinese Coal Gangue as an Ecological Aggregate and Its
.jpg)
Influence of coal gangue fine aggregate on microstructure of cement
2014年8月1日 Spontaneous combustion coal gangue(SC)and nonspontaneous combustion coal gangue(NSC)were selected as fine aggregate for cement mortars The influences of SC and NSC on the phase composition 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 Its2023年12月1日 Extensive experimental and theoretical investigations have been conducted on coal gangue aggregate concrete (CGAC) material properties, including compressive strength [5, 8, 9], elastic modulus [10, 11], stressstrain curve [6, 12], and durability [7, 13]Research has found that coal gangue aggregate (CGA) significantly impacts the mechanical properties of Shrinkage model for concrete incorporating coal gangue coarse and fine 2020年5月6日 Coal gangue, a byproduct produced during the process of coal mining and washing, has a serious impact on the environment Using coal gangue as a concrete aggregate has been proven helpful in Frost Resistance of Coal Gangue Aggregate Concrete Modified by Steel
Environmentally friendly utilization of coal gangue as
2021年12月1日 To this end, many efforts are devoted into converting coal gangue into aggregates for concrete By this method, coal gangue is expected to be used on large quantity and more importantly as a greener aggregate [8]However, it’s still challenging nowadays since that concrete prepared with coal gangue aggregates (CGA) displays degradated mechanical