Stabilization/solidification of lead- and cadmium-containing tailings for cemented paste backfill by using clinker-free binders

Yong Sun,Yingliang Zhao, Xiaojun Wan,Jingping Qiu,Pinqi Wu,Xiaogang Sun

Construction and Building Materials（2022）

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摘要

•Pb showed higher retardation effects on the hydration of clinker-free binders.•CQD addition reduced the adverse effects causing by the heavy metals.•The main mechanism of Pb and Cd leaching was diffusion.•The S/S tailings fulfilled requirements of CPB.

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关键词

Tailings,Cemented paste backfill,Alkali-activated materials,Environmentally friendly,Heavy metals

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