Research into cemented paste backfill properties and options for its application: Case study from a Kryvyi Rih Iron-ore Basin, Ukraine DOI Creative Commons
Мykhailo Petlovanyi, Kateryna Sai

Mining of Mineral Deposits, Journal Year: 2024, Volume and Issue: 18(4), P. 162 - 179

Published: Dec. 30, 2024

Purpose. The purpose is to conduct experimental research on a set of properties cemented paste backfill mass based number natural-technogenic materials the Kryvyi Rih Iron-ore Basin with aim its further use in technologies for restoring heavily disturbed earth's surface by complex iron ore mining. Methods. A comprehensive toolkit used: X-ray fluorescence and diffraction analyses study chemical mineralogical composition components, conductometer measurements electrical conductivity mixtures during their hardening, laboratory studies formulations determination physical-mechanical characteristics using hydraulic press, an analytical determine suitable regions backfilling, taking into account presence technogenic cavities, tailings dumps binder materials. Findings. It has been found that paste-like homogeneous state mixture beneficiation from mining processing plants Ukraine achieved at solid part content about 73-75%, which provides optimal balance between flowability mechanical strength. patterns strength changes depending material dosage, hardening period pure cement different variations alternative determined. have revealed correlation parameters. Originality. method predicting early late backfilling developed, identified mixture, time reach peak, stages hardening. knowledge understanding conditions under influence climatic environmental developed. Practical implications. conducted useful designing technology earth’s surface, namely, failure zones mines, underground unfilled cavities closed mines mined-out spaces quarries. concept implementing western city expected contribute environmental, economic social development region.

Language: Английский

Enhancing bending performance of cemented lithium feldspar tailings backfill with 3D printing polymer lattices: effects of unit shapes and materials DOI Creative Commons
Ling Hu, Bin Zheng, Daopei Zhu

et al.

Case Studies in Construction Materials, Journal Year: 2025, Volume and Issue: unknown, P. e04463 - e04463

Published: March 1, 2025

Language: Английский

Citations

2
Effect of 3D-printed polymer with negative Poisson's ratio structure on the mechanical characteristics of cemented tailings backfill DOI Creative Commons
Jiangyu Wu, Shihao Li,

Louyan Shen

et al.

Case Studies in Construction Materials, Journal Year: 2025, Volume and Issue: unknown, P. e04665 - e04665

Published: April 1, 2025

Language: Английский

Citations

0
Effects of Superfine Cement on Fluidity, Strength, and Pore Structure of Superfine Tailings Cemented Paste Backfill DOI Open Access
Kunlei Zhu, Haijun Wang,

Xulin Zhao

et al.

Minerals, Journal Year: 2024, Volume and Issue: 15(1), P. 24 - 24

Published: Dec. 27, 2024

Advancements in mine tailings treatment technology have increased the use of superfine tailings, but their extremely fine particle size and high specific surface area limit performance cemented paste backfill (STCPB). This study investigates effects using cement as a binder to enhance fluidity, strength, pore structure STCPB. The influence water film thickness (WFT) on STCPB is also examined. results show that cement-to-tailings ratio (CTR) solid content (SC) significantly affect spread diameter (SD) unconfined compressive strength (UCS), following distinct linear/logarithmic exponential trends, respectively. WFT has an impact SD non-linear effect UCS, enhancing at low levels (0 μm < 0.0071 μm) balancing hydration flowability moderate (0.0071 0.0193 reducing (WFT > μm). Additionally, improves by porosity macropore content. These findings provide valuable insights into optimizing for enhanced sustainability backfilling applications.

Language: Английский

Citations

2
Research into cemented paste backfill properties and options for its application: Case study from a Kryvyi Rih Iron-ore Basin, Ukraine DOI Creative Commons
Мykhailo Petlovanyi, Kateryna Sai

Mining of Mineral Deposits, Journal Year: 2024, Volume and Issue: 18(4), P. 162 - 179

Published: Dec. 30, 2024

Purpose. The purpose is to conduct experimental research on a set of properties cemented paste backfill mass based number natural-technogenic materials the Kryvyi Rih Iron-ore Basin with aim its further use in technologies for restoring heavily disturbed earth's surface by complex iron ore mining. Methods. A comprehensive toolkit used: X-ray fluorescence and diffraction analyses study chemical mineralogical composition components, conductometer measurements electrical conductivity mixtures during their hardening, laboratory studies formulations determination physical-mechanical characteristics using hydraulic press, an analytical determine suitable regions backfilling, taking into account presence technogenic cavities, tailings dumps binder materials. Findings. It has been found that paste-like homogeneous state mixture beneficiation from mining processing plants Ukraine achieved at solid part content about 73-75%, which provides optimal balance between flowability mechanical strength. patterns strength changes depending material dosage, hardening period pure cement different variations alternative determined. have revealed correlation parameters. Originality. method predicting early late backfilling developed, identified mixture, time reach peak, stages hardening. knowledge understanding conditions under influence climatic environmental developed. Practical implications. conducted useful designing technology earth’s surface, namely, failure zones mines, underground unfilled cavities closed mines mined-out spaces quarries. concept implementing western city expected contribute environmental, economic social development region.

Language: Английский

Citations

1