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

IF 7.2 2区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY Journal of CO2 Utilization Pub Date : 2024-06-01 DOI:10.1016/j.jcou.2024.102860

Yingjie Zou , Qiang Song , Peng Zhang , Shipeng Xu , Jiuwen Bao , Shanbin Xue , Ling Qin , Hui Wang , Liang Lin , Changsha Liu

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Abstract

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

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典型煤基固体废弃物建材利用及 CO2 固化技术研究现状：重要综述

煤炭是中国最丰富的自然资源之一，在提供大量能源和促进经济增长方面发挥着至关重要的作用。然而，在煤炭生产和利用过程中产生的大量煤基固体废弃物（CBSW），如煤矸石（CG）、粉煤灰（FA）和煤气化炉渣（CGS），其处置和储存带来了严峻的社会和环境挑战。固体废弃物在建筑材料领域的应用已引起广泛关注，预计未来将成为一种主要的处理方法。本文全面综述了典型建筑废弃物的特性、预处理方法和利用性能，旨在为优化固体废弃物的固有特性及其利用提供依据和有价值的参考。此外，本文还讨论了各种碳化养护参数对二氧化碳捕集的影响，阐明了碳化养护对 CBSW 混凝土性能的影响机理。这项研究对于将 CBSW 用作建筑材料和减少碳排放具有重要意义，尤其是在固体废弃物较多且二氧化碳排放量较高的地区。

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来源期刊

Journal of CO2 Utilization CHEMISTRY, MULTIDISCIPLINARY-ENGINEERING, CHEMICAL

CiteScore

13.90

自引率

10.40%

发文量

406

审稿时长

2.8 months

期刊介绍： The Journal of CO2 Utilization offers a single, multi-disciplinary, scholarly platform for the exchange of novel research in the field of CO2 re-use for scientists and engineers in chemicals, fuels and materials. The emphasis is on the dissemination of leading-edge research from basic science to the development of new processes, technologies and applications. The Journal of CO2 Utilization publishes original peer-reviewed research papers, reviews, and short communications, including experimental and theoretical work, and analytical models and simulations.