Towards eco-friendly mining:Alkali-activated materials from mine waste for pollution mitigationOA
The mining industry generates vast quantities of mining solid wastes(MSWs),posing significant environmental and ecological challenges.Alkali-activated materials(AAMs)offer a sustainable solution by converting MSWs into value-added cementitious products,providing an alternative to ordinary Portland cement while reducing carbon emissions.This review comprehensively examines recent advancements in utilizing MSWs as precursors for AAMs.Key topics include fundamental reaction mechanisms,the role of precursor composition in gel formation,and the effects of activator selection on mechanical properties and durability.The effectiveness of various pretreatment strategies,such as mechanical activation,thermal processing,and alkali fusion,in enhancing MSWs reactivity is critically assessed.Additionally,challenges related to precursor variability,energy consumption,and long-term performance are identified.This review provides valuable insights into the sustainable valorization of MSWs in AAMs,contributing to circular economy initiatives and the development of low-carbon construction materials.
Zhengyu Ma;Xiaogang Sun;Xiaojun Wan;Yanchao Sun;Yong Zheng;Xiaolong Zhang;Jingping Qiu;Yingliang Zhao
College of Resources and Civil Engineering,Northeastern University,Shenyang 110819,ChinaCollege of Resources and Civil Engineering,Northeastern University,Shenyang 110819,ChinaCollege of Resources and Civil Engineering,Northeastern University,Shenyang 110819,ChinaCollege of Resources and Civil Engineering,Northeastern University,Shenyang 110819,ChinaSchool of Resources and Safety Engineering,University of Science and Technology Beijing,Beijing 100083,ChinaCollege of Resources and Civil Engineering,Northeastern University,Shenyang 110819,ChinaCollege of Resources and Civil Engineering,Northeastern University,Shenyang 110819,ChinaDepartment of Civil and Environmental Engineering,The Hong Kong Polytechnic University,Hong Kong 999077,China School of Resources and Safety Engineering,University of Science and Technology Beijing,Beijing 100083,China
资源环境
Alkali-activated materialsMining solid wastesWaste valorizationPretreatment methodsSustainable miningArtificial intelligenceLife cycle assessmentMine backfilling
《Green and Smart Mining Engineering》 2026 (1)
P.107-132,26
supported by National Natural Science Foundation of China(No.52374116)National Key Research and Development Program of China(Nos.2023YFC3904303 and 2023YFC3904305).
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