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Replacing soil with waste gangue for the ecological remediation of mining areas facilitated by plant-promoting microorganisms and porous materials. [PDF]

Sci Rep
Zhang B, Ma D, Zhou X, Li L, Li L, Qian G.   +5 more
europepmc   +1 more source

Activity and structure of calcined coal gangue

Journal of Wuhan University of Technology-Mater. Sci. Ed., 2007
Coal gangue was activated by means of calcination in seven temperature ranges. Systematic research was made about activation mechanism and structural evolution. Glycerin-ethanol method, SEM, MIP and XRD were used to determine the variation of structure and activation of coal gangue during the calcination.
Gong, Chenchen, Li, Dongxu, Wang, Xiaojun, Li, Zongjin   +3 more
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Multitechnique investigation of concrete with coal gangue

Construction and Building Materials, 2021
Abstract Although the research of coal gangue as construction aggregate has been conducted for many years, the fundamental knowledge about the links between the microscopic properties of coal gangue and the macroscopic properties of concrete has not been discovered yet.
Yifan Li, Songhui Liu, Xuemao Guan
exaly   +2 more sources

Valorization of calcined coal gangue as coarse aggregate in concrete

Cement and Concrete Composites, 2021
Coal gangue is a by-product generated from coal mining and washing. Using coal gangue as aggregate is an effective approach of valorization this high-volume industrial waste, not only solving the environmental issue of accumulation but also reducing the ...
Yuanyuan Zhu, Yingcan Zhu, Daosheng Sun   +2 more
exaly   +2 more sources

Recycling coal from coal gangue

Filtration + Separation, 2017
Coal gangue is not just solid waste, but also has the potential to yield useful energy. In China, a mining group and a local power plant power plant joined forces with a local university to look at ways to recycle coal gangue to improve the revenue, cut down on resource utilization, and reduce environment pollution.
Liang Shen, Wenbao Lv, Wei Zhou, Jinbo Zhu, Erle Qiao   +4 more
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Coal and Coal Gangue Separation Based on Computer Vision

2010 Fifth International Conference on Frontier of Computer Science and Technology, 2010
We consider the problem of automatically separating coal and coal gangue based on computer vision and design a coal and coal gangue separation system framework based on video. Grayscale histogram, fractal dimension and energy value are extracted as ore features.
Wenhui Li 0002, Ying Wang 0024, Bo Fu, Yifeng Lin   +3 more
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Influence of pozzolanic activity of coal gangue on hydration products in coal gangue-cement system

2010 International Conference on Mechanic Automation and Control Engineering, 2010
Qualitative and quantitative analysis of the composition in the paste of complex cements have been determined by means of X-ray diffraction (XRD),differential scanning calorimetry (DSC) and directly-heating method. Results show that the composition of hydration products in coal gangue-cement complex system is similar to that in pure cement system, but ...
Bingwei Gu, Peiming Wang
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Progress of Coal Gangue Research

2011
China is carrying out a large-scale energy bases in the early stages. Historical experience shows that a large number of coal gangue will be produce in the development of coal process. The coal gangue will occur environmental pollution when the improper disposal.
Jianguo Feng, GuiHua Li, Liping Zhang
openaire   +1 more source