原矿铝土矿加工回收工业废渣用于生产人工骨料地聚合物膏体

Q1 Environmental Science

Case Studies in Chemical and Environmental Engineering Pub Date : 2025-06-12 DOI:10.1016/j.cscee.2025.101249

Fitriana Meilasari , I.D.A.A. Warmadewanthi , Yulinah Trihadiningrum , Januarti Jaya Ekaputri , Hendri Sutrisno

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引用次数: 0

摘要

全球不断增长的建筑需求导致了自然资源的过度开发和环境的恶化。使用铝土矿加工渣（RBPR）作为人工骨料提供了可持续的建筑解决方案，同时支持可持续发展目标9（创新和基础设施）、11（可持续城市）和12（负责任的消费）。采用模铸法和热法将RBPR制成人工骨料地聚合物膏体（AAGP）。XRD， FTIR和SEM-EDS分析证实了AAGP中的地聚合物必需矿物质，表明铝硅酸钠凝胶形成成功，这是地聚合物的基本结合相。AAGP抗压强度超过12 MPa，生产总CO2排放量为1.786 ~ 2.992 kg CO2/kg材料。

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Run-of-mine bauxite processing residue recovery from the mining industry for the production of artificial aggregate geopolymer paste

Rising global construction demand led to natural aggregate overexploitation and environmental degradation. Using run-of-mine bauxite processing residue (RBPR) as artificial aggregate offers sustainable construction solutions while supporting Sustainable Development Goals No. 9 (Innovation and Infrastructure), 11 (Sustainable Cities), and 12 (Responsible Consumption). RBPR was produced into artificial aggregate geopolymer paste (AAGP) using mold casting and thermal methods. XRD, FTIR, and SEM-EDS analyses confirmed geopolymer essential minerals in AAGP, indicating successful sodium aluminosilicate gel formation, the fundamental binding phase in geopolymers. AAGP compressive strengths exceed 12 MPa, and total CO₂ emissions from its production were 1.786–2.992 kg CO₂/kg material.

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