A study of the mechanical properties, environmental effect, and microscopic mechanism of phosphorus slag-based uranium tailings backfilling materials

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成果类型：

期刊论文

作者：

Zhang, Xiao;Xue, Xilong;Ding, Dexin;Sun, Pengcheng;Li, Jiale;...

通讯作者：

Xue, XL

作者机构：

[Zhang, Xiao; Ding, Dexin] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Min, Hengyang 421001, Hunan, Peoples R China.

[Zhang, Xiao; Ding, Dexin; Sun, Pengcheng; He, Yan; Xue, Xilong; Li, Jiale] Univ South China, Sch Resources Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.

[Xue, Xilong] Jinchuan Grp Co Ltd, Ni&Co Associated Minerals Resources Dev & Comprehe, Natl Key Lab, Jinchang 737100, Gansu, Peoples R China.

[Xue, Xilong; Xue, XL] Safety Engn Univ South China, Sch Resources Environm, 28 Changsheng west Rd, Hengyang 421001, Peoples R China.

通讯机构：

[Xue, XL ] S

Safety Engn Univ South China, Sch Resources Environm, 28 Changsheng west Rd, Hengyang 421001, Peoples R China.

语种：

英文

关键词：

Heap leaching uranium tailings;Cemented backfill;Leaching behavior;Occurrence form;Rn exhalation rate

期刊：

Journal of Cleaner Production

ISSN：

0959-6526

年：

2024

卷：

446

页码：

141306

DOI：

10.1016/j.jclepro.2024.141306

基金类别：

CRediT authorship contribution statement Xiao Zhang: Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Software, Writing – original draft. Xilong Xue: Conceptualization, acquisition, Resources, Supervision, W. Dexin Ding: Supervision, Writing – review & editing. Pengcheng Sun: Investigation, Visualization. Jiale Li: Software, Validation. Yan He: Writing – review & editing.

机构署名：

本校为第一且通讯机构

院系归属：

核资源工程学院

摘要：

Heap leaching uranium tailings (HLUTs) contain radionuclides and sulfuric acid, presenting some challenges for the disposal of cemented HLUTs backfill (CUTB), including low stability and potential environmental contamination. In light of these issues, using a blend of cement clinker (CL) and high content phosphorus slag (PS) as binders to replace traditional cement for the preparation of green and cost-effective CUTB were proposed. The fluidity, setting time (ST), mechanical properties, Radon (Rn) exhalation rate, uranium (U) occurrence form, U (VI) leaching behavior, and microstructure of CUT...

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A study of the mechanical properties, environmental effect, and microscopic mechanism of phosphorus slag-based uranium tailings backfilling materials

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