Mechanical activation as an innovative approach for the preparation of pozzolan from iron ore tailings

• Published in: Minerals engineering Vol. 145; p. 106068
• Main Authors: Yao, Geng, Wang, Qiang, Su, Yuewei, Wang, Junxiang, Qiu, Jun, Lyu, Xianjun
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.01.2020
• Subjects: Hydration properties; Iron ore tailings; Mechanical activation; Pozzolanic activity; Hydration properties; Mechanical activation; Iron ore tailings; Pozzolanic activity

•The pozzolanic activity of iron ore tailings was improved after mechanical activation.•The hydration products of CaO-activated tailings are CSH gel, as well as ettringite crystals in the presence of anhydrite.•It is feasible to use mechanically activated iron ore tailings as Portland cement additiv...