Study on the evolution of mechanical properties of backfill body under the combined action of sulfate erosion and load DOI Creative Commons
Shengtang Zhang,

Shurong Chen,

Lingran Min

et al.

Case Studies in Construction Materials, Journal Year: 2024, Volume and Issue: unknown, P. e03977 - e03977

Published: Nov. 1, 2024

Language: Английский

Exploring microstructure and mechanical features of coupled cementitious tail-sand concrete by partial replacement of tungsten tailings DOI
Meilin Jiang, Shuai Cao, Erol Yilmaz

et al.

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 190, P. 863 - 875

Published: Aug. 26, 2024

Language: Английский

Citations

10
Grain-size composition effect on flexural response and pore structure of cementitious tail-rock fills with fiber reinforcement DOI Creative Commons
Hao Qin, Shuai Cao, Erol Yilmaz

et al.

Developments in the Built Environment, Journal Year: 2024, Volume and Issue: unknown, P. 100558 - 100558

Published: Oct. 1, 2024

Language: Английский

Citations

6
Experimental research on resource utilization of iron tailings powder in backfilling engineering DOI Creative Commons
Guohui Yuan,

Yunshi Yao,

Pingze Zhang

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 28, 2025

The goaf formed by mining and other activities is prone to safety hazards. Preparing high-quality low-cost solidified iron tailings powder (SITP) an important way ensure backfill quality eliminate Using near the of in Shanxi, comparative experiments were conducted evaluate flowability, stone rate, strength, water stability newly mixed SITP under different types dosages curing agent, mixing methods. results show that premise keeping fluidity constant, strength ITP slurry increases with increase agent content; At same consumption significantly affects fluidity; When using 8%~16% dosage, expansion degree 280 mm ~ 600 mm, wet density 1.9 g/cm3 2.1 g/cm3, 28d after 1.4 MPa 3.7 MPa, rate greater than 92%; prepared vibration a time 120 s amount at 8% meets engineering application requirements 7d 0.6 250 mm. research shows has high solidification, it new resource utilization large good economy be used for backfilling.

Language: Английский

Citations

0
Research on the performance of a novel type of cemented filler material for coal mine opening and filling DOI Creative Commons
Yue Yu

Nonlinear Engineering, Journal Year: 2025, Volume and Issue: 14(1)

Published: Jan. 1, 2025

Abstract In this study, Inner Mongolia Chahasu Coal Mine is considered as the research object and new type of cemented filling material developed based on gangue, fly ash, cement. The aim to systematically optimize its performance investigate influencing factors improve proportion materials used in coal mine mining process. Thus, study seeks reduce production costs enhance utilization rate solid waste. literature, various studies have focused optimizing materials, particularly terms reducing environmental impact improving cost-effectiveness. Research abroad has made significant progress under specific geological conditions, such varying mineral compositions groundwater influences. However, challenge remains balancing physical properties like compressive strength, flowability, durability with efficient use industrial byproducts ash gangue. Studies also indicate that while been extensively studied for their strength properties, interaction effects multiple factors, complex environments, are not well understood. contrast, domestic primarily focus basic less variable limited emphasis how complexities optimization Furthermore, many do fully address role gangue particle size sustainability cost-effectiveness materials. To fill gap, combines response surface methodology gradation create a model between cement, content, filler body’s strength. According test results, materials’ flowability were maximized when grading factor was set at n = 0.5. A Box–Behnken experimental design then examine influence patterns content early (3 days), middle (7 late (28 days) stages, focusing both single-factor multi-factor interactions. found primary determinants cement mass fraction fraction, ash’s contribution becoming more later stages curing. optimized ratios only met requirements but significantly reduced usage increased demonstrating potential cost reduction effective resource

Language: Английский

Citations

0
Macro- and Micromechanics Model of Progressive Damage to Cemented Tailings Backfill Considering Initial Defect Conditions DOI

Juncheng Zhong,

Kang Zhao, Yun Zhou

et al.

Journal of Materials in Civil Engineering, Journal Year: 2025, Volume and Issue: 37(7)

Published: April 30, 2025

Language: Английский

Citations

0
Life Cycle Assessment of Ceramic Tiles Manufactured Using Industrial Waste Fly Ash DOI Creative Commons
Qibin Yuan, Jingxuan Zhang, Dilan Robert

et al.

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 110775 - 110775

Published: Sept. 1, 2024

Language: Английский

Citations

2
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
Thermo-hydro-mechanical response of cementitious tailings fill to low humidity and ambient temperature interference DOI
Xing An, Di Wu, Wenwen Cheng

et al.

Geotechnical and Geological Engineering, Journal Year: 2024, Volume and Issue: 43(1)

Published: Nov. 29, 2024

Language: Английский

Citations

2
Energy damage evolution and mesoscopic failure mechanism of cemented waste rock tailing backfill under axial compression DOI
Tianyu Zhu, Zhonghui Chen, Zhongyu Wang

et al.

Structures, Journal Year: 2024, Volume and Issue: 71, P. 108057 - 108057

Published: Dec. 16, 2024

Language: Английский

Citations

1
Evaluation of acid mine drainage and metal release potential of cemented paste backfill of sulfide rich tailings DOI
Ercüment Koç, Ferdi Cihangir, Bayram Erçıkdı

et al.

International Journal of Mining Reclamation and Environment, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 20

Published: Dec. 31, 2024

Sulphide-containing tailings can be stored in underground cavities as cemented paste backfill (CPB). Due to the sulphur (S wt.%) content, it is significant predetermine possible environmental impacts of CPB. This study investigates potential for metals leachability and acid mine drainage (AMD) formation (SO4=, pH) from sulphide-rich (TA) granular- monolithic forms CPB produced using these with static, modified acid-base accounting (ABA) tests kinetic humidity cell (HCT). The results have shown that pH leachates remained close neutral levels (~pH 7) throughout 40-week HCT period, whereas TA became acidic (≤pH after 5th week. average SO4= release (CPBm) was about 2.5-fold lower than granular (CPBg) and, 10.8-fold samples. extent metal observed depend on pH, increasing steadily decreasing pH. CPBs comparatively at low levels, i.e. 60–1000 times those TA. leaching reach almost a plateau initial 33 weeks all These findings reveal generates effluents, containing heavy within safe per regulatory limits water quality standards (EPA, TS, WPC). Additionally, provides higher neutralisation has well-designed highly effective mitigating AMD compared TA, providing an environmentally friendly storage tailings.

Language: Английский

Citations

1