Results 31 to 40 of about 9,578 (228)
Durability of Concrete With Coal Gasification Slag and Coal Gangue Powder [PDF]
Frontiers in Materials, 2022 Lack and quality decrease of supplementary cementing materials (SCMs) such as fly ash and granulated blast-furnace slag is increasingly prominent in China. Thus, the use of coal gangue (CG) and coal gasification slag (CGS) as SCMs in concrete attracted more researcher’s attention.
Xiaoliang Zhu +3 more
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Identification Method of Coal and Coal Gangue Based on Dielectric Characteristics [PDF]
IEEE Access, 2021 To solve the problems of the difficult feature extraction, poor feature credibility and low recognition accuracy of coal and gangue, this paper utilizes the difference in the dielectric properties of coal and gangue and in combination with a support vector machine (SVM) to propose a recognition method based on the dielectric characteristics of coal and
Yongcun Guo +4 more
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Mechanical properties and microscopic characteristics of steel fiber coal gangue concrete
Frontiers in Materials, 2023 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 ...
Jiuyang Li +6 more
doaj +1 more source
Optical fiber sensors for coal mine shaft integrity and equipment condition monitoring [PDF]
, 2019 Shaft is an important structure of mine. Deep mining increases mine pressure, induces shaft deformation and affects mine normal lifting. How to improve the inspection efficiency, reduce the maintenance cost and ensure the normal operation of the shaft is
Fu, J. +9 more
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Experimental Study on Dynamic Mechanical Properties of Coal Gangue Concrete
Advances in Materials Science and Engineering, 2020 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 the Split Hopkinson Pressure Bar (SHPB) test were ...
Zhishu Yao +4 more
doaj +1 more source
Spectral Estimation Model Construction of Heavy Metals in Mining Reclamation Areas [PDF]
, 2016 The study reported here examined, as the research subject, surface soils in the Liuxin mining area of Xuzhou, and explored the heavy metal content and spectral data by establishing quantitative models with Multivariable Linear Regression (MLR ...
Dai, W, Dong, J, Li, S, Xu, J
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Progress in developments of dry coal beneficiation [PDF]
, 2014 China’s energy supply heavily relies on coal and China’s coal resource and water resource has a reverse distribution. The problem of water shortages restricts the applications of wet coal beneficiation technologies in drought regions.
Chenlong Duan +4 more
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Coal gangue in asphalt pavement: A review of applications and performance influence
Case Studies in Construction MaterialsThe comprehensive utilization of coal gangue is low, and this causes serious environment problems and security risks. The physical and chemical properties of coal gangue were analyzed in this paper, and the estimated value of different chemical ...
Luo Yaofei, Zhao Xingchen, Zhang Ke
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Vegetation diversity on coal mine spoil heaps-how important is the texture of the soil substrate? [PDF]
, 2019 © 2019, The Author(s). The relationship between the size of the particle fractions of the soil substrate and the diversity of the spontaneously developing vegetation was investigated on coal mine spoil heaps in Upper Silesia (Southern Poland).
Besenyei, L +8 more
core +2 more sources
Meitan kexue jishu, 2023 Aiming at the problem of poor imaging quality of coal and gangue surface features and low identification rate of coal and gangue caused by insufficient illumination conditions in the process of online coal separation,a new high-quality coal gangue image ...
CAO Xiangang +5 more
doaj +1 more source