Characterizing mechanical and multiscale porosity features of cementitious high sulfur tailings backfill using CT technology DOI

Qianru He,

Shuai Cao, Erol Yilmaz

et al.

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

Structural characteristics of cement-based tail fill with sodium dodecyl sulfate, azodicarbonamide, and dodecyl trimethyl ammonium bromide DOI
Tingting Jiang, Shuai Cao, Erol Yılmaz

et al.

Powder Technology, Journal Year: 2024, Volume and Issue: unknown, P. 120507 - 120507

Published: Nov. 1, 2024

Language: Английский

Citations

5
Utilization of waste rock from a low-carbon perspective: Mechanical performance analysis of waste rock-cemented tailings backfill DOI Creative Commons
Jia‐Qi Huang,

Cai Wu,

Nanhui Huang

et al.

Journal of CO2 Utilization, Journal Year: 2025, Volume and Issue: 94, P. 103058 - 103058

Published: March 5, 2025

Language: Английский

Citations

0
Mechanical Properties and Crack Evolution of Rock-like Materials with Varying Particle Sizes Prepared by Impact and Static Compaction Methods DOI Open Access

Qi Hu,

Qinglin Li, Xingyan Liu

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(8), P. 1695 - 1695

Published: April 8, 2025

To investigate the effects of impact and static compaction methods on mechanical properties crack evolution rock-like materials with varying particle sizes. Uniaxial compression tests combined Digital Image Correlation (DIC) technology were conducted specimens two aeolian sand gradations (0.075-0.18 mm 0.22-0.5 mm) one quartz gradation (0.22-0.5 mm). The study focused elastic modulus, peak strength, stress-strain behavior, failure modes, surface deformation fields, propagation paths, strain at characteristic points under both methods. Finally, microstructure was analyzed compared natural rock analogs. Key results include: (1) At an identical density 1.82 g/cm3, static-compacted fine-grained exhibited higher modulus strength to impact-compacted counterparts, whereas inverse trends observed for coarse-grained specimens; (2) Under equivalent energy (254.8 J), hierarchy performance was: > sand; (3) Static-compacted predominantly failed through tensile splitting, while shear-dominated modes; (4) DIC full-field mapping revealed rapid primary cracks along pre-existing weak planes in specimens, forming through-going fractures. In contrast, developed fractal field structures coordinated shear bands secondary cracks; (5) Microstructural comparisons showed that root-like high porosity, resembling weakly consolidated sedimentary rocks. Impact-compacted displayed stepped dense packing, analogous strongly cemented sandstones.

Language: Английский

Citations

0
Experimental and DEM analyses of type I fracture characteristics of waste rock aggregate reinforced cemented tailing backfill DOI
Tianyu Zhu, Zhonghui Chen, Zhongyu Wang

et al.

Theoretical and Applied Fracture Mechanics, Journal Year: 2024, Volume and Issue: unknown, P. 104764 - 104764

Published: Nov. 1, 2024

Language: Английский

Citations

3
Influence of fiber type and content on the flexural strength of cemented lithium feldspar tailings backfill composites DOI Creative Commons
Zhijiang Li,

Suikang Zhang,

Cai Wu

et al.

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 90, P. 102990 - 102990

Published: Dec. 1, 2024

Language: Английский

Citations

3
Characterizing mechanical and multiscale porosity features of cementitious high sulfur tailings backfill using CT technology DOI

Qianru He,

Shuai Cao, Erol Yilmaz

et al.

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

Citations

2