Feasibility study on coal based solid waste as a soil additive [PDF]
Scientific ReportsCoal resources are extensive exploitation and utilization. As a result, a large amount of coal based solid waste such as coal gangue, fly ash, and coal gasification slag was generated.
Nan Guo, Lu Bai, Yingming Yang, Fei Wang
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Review of the Preparation and Application of Porous Materials for Typical Coal-Based Solid Waste. [PDF]
Materials (Basel), 2023 The discharge and accumulation of coal-based solid waste have caused great harm to the ecological environment recently. Coal-based solid wastes, such as coal gangue and fly ash, are rich in valuable components, such as rare earth elements (REY), silicon dioxide, alkali metal oxides, and transition metal oxides, which can be used to synthesize various ...
Du J, Ma A, Wang X, Zheng X.
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Present situation of comprehensive utilization of coal-based solid waste [PDF]
E3S Web of ConferencesAt present, the annual discharge of coal-based solid waste in China has exceeded 800 million tons, but the mainstream treatment methods are still simple treatment methods such as goaf backfilling and openpit stacking.
Li Haichao
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Experimental Study on Mechanical Properties of Coal-Based Solid Waste Nanocomposite Fiber Cementitious Backfill Material. [PDF]
Materials (Basel), 2023 Previous studies have shown that coal-based solid waste can be utilized in combination with cement, silica fume, and other modified materials to create a cemented backfill material. However, traditional cemented backfill materials have poor mechanical properties, which may induce the emergence of mining pressure and trigger dynamic disaster under ...
Cheng Q +7 more
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Cracking-Resistance Mechanism of Fiber-Reinforced Coal-Based Solid-Waste Grouting Materials. [PDF]
Materials (Basel)Grouting technology can be employed to repair cracks in an aquifer to maintain its stability; however, existing grouting materials tend to come with problems such as low flexural strength, poor cracking resistance, and the coupled effects of fiber reinforcement and sulfoaluminate cement (SAC) addition on hydrate evolution, and pore-refinement and crack-
Guo S +8 more
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Study on the influence of coal-based solid waste on performance optimization of roadway pavement concrete. [PDF]
Sci RepTraditional concrete materials are expensive and ecologically detrimental, presenting significant challenges in balancing construction cost control with durability requirements for underground roads. To enable near-site, high-value utilization of bulk coal-based solid waste while optimizing coal mine roadway concrete performance, a fly ash-coal gangue ...
Wang C, Zhang L, Liang B, Wang J, Wu P.
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Feasibility Study of the Synergistic Use of Sludge and Coal-Based Solid Waste to Produce Environmentally Friendly Grouting Materials. [PDF]
ACS Omega, 2023 In this paper, a full solid waste-based grouting material was prepared using three industrial solid wastes, i.e., sludge, coal gangue (CG), and ground granulated blast furnace slag (GGBS), based on the concepts of synergy and complementarity. The effects of the dosage of raw sewage sludge (SS), incineration-activated sewage sludge ash (SSA), and an ...
Zhang W +5 more
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Research on the Rheological Properties and Diffusion Law of Coal-Based Solid Waste Geopolymer Grouting Material. [PDF]
Materials (Basel)The rheological properties and diffusion law of coal-based solid waste geopolymer grouting material (CGGM) slurry were investigated by rheological property test and diffusion theory model derivation. Based on the power-law fluid constitutive equation, a theoretical model of slurry diffusion in an inclined fissure aquifer was established, and the effect
Wang X +5 more
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High-Value and Environmentally Friendly Recycling Method for Coal-Based Solid Waste Based on Polyurethane Composite Materials. [PDF]
Polymers (Basel)This study aims to provide a high-value and environmentally friendly method for the application of coal-based solid waste. Modified fly ash/polyurethane (MFA/PU) and modified coal gangue powder/polyurethane (MCG/PU) composites were prepared by adding different contents of MFA and MCG (10%, 20%, 30%, 40%).
Li X +6 more
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Research progress of CO2 storage technology by mineralization of coal-based solid waste
Meitan kexue jishuThe goal of “carbon peak and carbon neutrality” is China’s responsibility as a major country to maintain global ecological security, and it is also an important way to achieve high-quality development and ecological civilization construction.
Lei ZHU +4 more
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