Microstructural evolution and strengthening mechanism of aligned steel fiber cement-based tail backfills exposed to electromagnetic induction

International Journal of Minerals Metallurgy and Materials, Journal Year: 2024, Volume and Issue: 31(11), P. 2390 - 2403

Published: Sept. 20, 2024

Language: Английский

---

Thickening mechanism under high compression stress based on double yield stress: Comparison between compression and compression-shear coupling

Minerals Engineering, Journal Year: 2025, Volume and Issue: 224, P. 109205 - 109205

Published: Feb. 10, 2025

Language: Английский

---

Enhancing barricade design in cemented paste backfill: Rheology, slab theory, and strength fusion

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(5)

Published: May 1, 2025

As a critical safety structure in cemented paste backfill (CPB) systems, traditional reinforced-concrete barricades exhibit high load-bearing capacity but suffer from design limitations due to the neglect of slurry rheological properties and time-dependent characteristics, leading structural failures resource inefficiency. This study proposes lateral pressure theoretical model incorporating time dependence, grounded yield stress-resting evolution CPB. Results demonstrate that backfilling height predominantly governs pressure. A mechanical reinforcement was developed using plastic hinge line theory two-way slabs, deriving computational formulas for horizontal vertical quantities. Key findings indicate requirements are influenced by height, width-to-height ratio (W/H), rebar diameter, strength, while horizontal/vertical solely depends on W/H. strength fusion theory, integrating area ratios through limit state methodology, reveals composite is primarily determined tensile concrete unconfined compressive (UCS), ratio, with UCS being dominant factor. enables thickness determination based enhancing scientific rigor. The systematic framework sequentially calculates pressure, thickness, configuration. Case validations confirm 28%–35% reductions consumption 1–2 specification grade decrease diameters, field applications stable barricade performance during operations.

Language: Английский

---

Environmental disposal of sulphide-rich and desulfurized tailings: Thickening, rheological, mechanical, and leaching performance

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 955, P. 177285 - 177285

Published: Nov. 1, 2024

Language: Английский

---

Exploring the Realm of Sulfide-Rich Cemented Paste Backfill: A Holistic Study on Backfilling Performance, Environmental Risk Mitigation and Green Mining Solution

Published: Jan. 1, 2024

Language: Английский

---