Chinese Science Citation Database Core Library(CSCD)Source Journals
Chinese Core Journals
Chinese Core Science and Technology Journals
RCCSE China Authoritative Academic Journal(A+)
Dutch Digest and Citation Database (Scopus)

Research progress and application of cementing materialsprepared from coal based solid waste

2024 No. 02
249
103
OnlineView
Download
Authors:
CHANG Ruiqi
ZHANG Jianbo
LI Huiquan
QU Jiangshan
LI Shaopeng
LI Zhanbing
WU Wenfen
Unit:
National Engineering Research Center of Green Recycling for Strategic Metal Resources,CAS Key Laboratory ofGreen Process and Engineering,Institute of Process Engineering,Chinese Academy of Sciences
School of Chemical Engineering,University of Chinese Academy of Sciences
Abstract:

Coal gangue, fly ash, and gasification slag are solid wastes generated from coal mining, chemical conversion, and coal-firedpower generation processes. These wastes have an annual emission of over 1.5 billion tons with a comprehensive utilization rate of about60%. However, their current utilization mainly focuses on low-end construction materials consumption, leading to market saturation. Inlight of impending environmental protection policies, there is an urgent need to develop new methods for resource utilization of coal-basedsolid waste. Due to the cementing properties of coal-based solid waste such as aluminosilicate composition, potential pozzolanic activity,and unique microstructure characteristics, low-cost and high-performance low-carbon cementitious materials have emerged as a promisingavenue for large-scale and high-value utilization. The activation technology and application fields of coal-based solid waste cementitious materials were reviewed and prospected. The impact of physical excitation, alkali excitation, and acid excitation on the mineral phasetransformation of gelled materials and their influence on product properties were elucidated. Furthermore, an overview was provided regarding the merits of existing technologies as well as the challenges that need to be addressed. In terms of application fields analysis includesbuilding materials production road repair environmental remediation among others where coal-based solid waste cementitious materials canbe utilized effectively. Based on the above situation, the future development direction of coal-based solid waste cementitious materialssuch as excitation mechanism research, component ratio optimization, material environmental protection performance, engineering application and promotion were prospected. It has important reference significance for the preparation of cementitious materials from coal-basedsolid waste, and provides a new way for large-scale utilization of coal-based solid waste.

Keywords:
coal-based solid waste
cementing material
activation
building materials
road rehabilitation
environmental remediation
Citation format:
常瑞祺(1997—),男,河南驻马店人,硕士研究生。E-mail:changruiqi21@ipe.ac.cn
Chart:
Articles:
--
Citation format:
CHANG Ruiqi,ZHANG Jianbo, LI Huiquan, et al. Research progress and application of cementing materials preparedfrom coal based solid waste[J].Clean Coal Technology,2024,30(2):316-330.

About Journal

  • Executive director

    China Coal Science and Industry Group Co., Ltd

  • Sponsored by

    Coal Science Research Institute Co., Ltd
    Coal Industry Clean Coal Engineering
    Technology Research Center

  • Editor in Chief

    XIE Qiang

  • Vice Editor-in-Chief

    YU Chang
    SHI Yixiang
    ZHAO Yongchun
    DUAN Linbo
    CAO Jingpei
    ZENG Jie

  • Publication Frequencies

    Monthly

  • ISSN

    1006-6772

  • CN

    11-3676/TD

Covered by

  • CSTPCD
  • RCCSE(A+)
  • AJ
  • EBSCO host
  • Ulrichsweb
  • JST
  • Scopus

Contact us

New Media

  • Meichuanmei
    Meichuanmei
  • Clean Coal Technology
    Clean Coal Technology
  • Online Journals
    Online Journals
Website Copyright © {year} Clean Coal Technology
京ICP备05086979号-19
地址:Coal Tower, Hepingli, Chaoyang District, Beijing, China.
邮编:100013
Tel:86-10-87986452 / 010-87986451
E-mail:jjmjs@263.net