Synergistic action and effect mechanism of coal gangue powder and red mud on the properties of concretes

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 98, P. 110999 - 110999

Published: Oct. 9, 2024

Language: Английский

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Research status of building materials utilization and CO2 curing technology on typical coal-based solid waste: A critical review

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 84, P. 102860 - 102860

Published: June 1, 2024

Coal, one of China's most abundant natural resources, plays a crucial role in providing substantial energy and promoting economic growth. However, the disposal storage large quantities coal-based solid waste (CBSW), such as coal gangue (CG), fly ash (FA), gasification slag (CGS), generated during production utilization processes, pose serious social environmental challenges. The application construction materials field has garnered significant attention is anticipated to become primary treatment method future. This paper comprehensively reviews characteristics, pretreatment methods, performance typical CBSWs, aiming offer basis valuable reference for optimizing inherent properties its utilization. Additionally, it discusses influence various carbonation curing parameters on CO2 capture elucidates impact mechanism CBSW concrete. study holds great significance building carbon reduction, particularly regions with high emissions.

Language: Английский

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Improvement of strength and microstructure of low-carbon cementitious materials with high volume of calcined coal gangue

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 444, P. 137916 - 137916

Published: Aug. 14, 2024

Language: Английский

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Experimental study on the micro-mechanism and compressive strength of concrete with calcined coal gangue coarse aggregate

Case Studies in Construction Materials, Journal Year: 2025, Volume and Issue: unknown, P. e04680 - e04680

Published: April 1, 2025

Language: Английский

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Research Progress of Concrete Preparation Based on Solid Waste Properties of Coal Gangue

Sustainability, Journal Year: 2025, Volume and Issue: 17(5), P. 2007 - 2007

Published: Feb. 26, 2025

Coal gangue (CG) is one of the most frequent solid wastes in world, and it poses a severe hazard to both human society natural ecosystems. In light progressive increase environmental awareness unavoidable trend requirements sustainable development plan, how efficiently use these vast quantities CG has become an important subject China. Concrete aggregate, which can not only solve pollution but also compensate for scarcity gravel sand resources, cost-effective eco-friendly way utilize resources accordance with strategic green development. However, deal preparation high-quality aggregate needs be targeted research; blindly using concrete may bring some safety hazards. This requires that based on source, distribution, storage, chemical composition, mineral composition problems utilization process, efforts are made open up key routes utilization, provide theoretical guidance high-value environmentally friendly CG. paper summarizes characteristics its impact performance, discusses technical means improve performance concrete, analyzes if current application problem still exists, view gradually realize low-energy consumption bulk utilization. The popularization will accelerate solution brings, certain extent alleviate situation supply insufficient meet demand; today’s research economic significance.

Language: Английский

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Internal Curing for Tunnel Self-Compacting Concrete Using Pre-Soaked Coal Gangue: A Promising Way for Spot Utilization of Coal Gangue

Iranian Journal of Science and Technology Transactions of Civil Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 28, 2024

Language: Английский

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