Results 31 to 40 of about 4,150 (219)
, 2023 <p>This release contains experimental data on the pozzolanic of calcined coal gangue. "The data on the strength" presents the compressive and flexural strength data of cement mortar specimens (40×40×160 cm) containing 30% calcined coal gangue at ...
Haoyang Han, Junfei Zhang, Ling Wang
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Study on mechanical properties and microstructure of steel-polypropylene fiber coal gangue concrete
Frontiers in Materials, 2023 Incorporating coal gangue into the concrete matrix can realize the utilization of solid waste and reduce the use of natural aggregate. To improve the mechanical properties of coal gangue concrete, this paper designs four-level and four-factor orthogonal ...
Jiuyang Li +5 more
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Scientific Reports, 2023 In order to deeply study the basic characteristics, diffusion laws, and flow laws of coal gangue and coal gangue slurry, the basic characteristic parameters of coal gangue and coal gangue slurry were obtained through particle size distribution test ...
Ji-qiang Zhang +5 more
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Test Study on Combustion Adjustment of 330 MW Circulating Fluidized Bed Boiler
发电技术, 2019 A circulating fluidized bed (CFB) boiler of the 330 MW unit have problems such as nonuniform bed temperature, heating surface wear, tube burst and so on. Combustion optimizing adjustment test was carried out to solve these problems.
Xianbin SUN +7 more
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矿业科学学报, 2022 Natural aggregate is increasingly scarce, and the reuse of solid waste is highly valued. Application of coal gangue aggregate has been drawing broad attention.
Wang Yan, Zuo Zhen, Wen Bo, Gao Guanyi
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Preparation of activated carbon-mesoporous silica composites from coal gangue and phase transformation during its preparation [PDF]
, 2023 Coal gangue, as a mixture of carbon, silicon and aluminum, can be used for the preparation of composite materials. It shows a good prospect as the preparation of composite materials can avoid the difficulties of element separation and impurity ...
Kezhou YAN +5 more
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Shock and Vibration, 2022 In the process of top coal caving mining, the caving time and the tail beam swing angle have an important impact on the evolution of the coal gangue boundary, which determines the top coal recovery rate and gangue content rate. Therefore, it is necessary
Qingliang Zeng +4 more
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Effects of Fine Gangue on Strength, Resistivity, and Microscopic Properties of Cemented Coal Gangue Backfill for Coal Mining [PDF]
Shock and Vibration, 2015 The cemented coal gangue backfill (CGB) in coal mining is normally made of gangue (particle size of 0–15 mm), fly ash, cement, and water. In this study, the effects of the weight content (ranging from 20% to 60%) of fine gangue (0–5 mm) on the microscopic characteristics, resistivity, and compressive strength of CGB were investigated at 3 d and 28 d ...
Tingye Qi +5 more
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Microorganisms, 2023 Coal gangue is a solid waste emitted during coal production. Coal gangue is deployed adjacent to mining land and has characteristics similar to those of the soils of these areas.
Mengying Ruan +4 more
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