Fractal fracture characteristics and acoustic emission analysis of soft rock‐coal combinations under low‐frequency disturbance DOI
Jianlong Wang, Dong Wang, Yujing Jiang

и другие.

Fatigue & Fracture of Engineering Materials & Structures, Год журнала: 2024, Номер 47(12), С. 4573 - 4587

Опубликована: Сен. 23, 2024

Abstract To explore the fracture mode and failure characteristics of soft rock‐coal combinations under different disturbance amplitudes, this paper conducted dynamic uniaxial compression tests amplitudes. The results indicate that low‐frequency disturbances can weaken load‐bearing capacity specimen. modes specimens vary low amplitude are not sufficient to cause overall cracking specimens. In addition, as increases, fractal dimension composite after shows a fluctuating trend, reaching its maximum value at 3 MPa minimum 4 MPa, with an range 1–3. Finally, absolute energy waveform acoustic emission display damage specimen during process. This study provides theoretical basis for understanding preventing coal rock disasters.

Язык: Английский

Experimental study on the dynamic mechanical properties of polypropylene fibre-reinforced coal gangue-cemented backfill DOI
Lijuan Su, Szu‐Yuan Wu,

Jiabao Yang

и другие.

Construction and Building Materials, Год журнала: 2025, Номер 459, С. 139843 - 139843

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

3

Experimental and numerical investigations on damage mechanical behaviors of surrounding rock-backfill composite under uniaxial compression DOI
Xiaolin Wang, Zefeng Li,

Jinping Guo

и другие.

Construction and Building Materials, Год журнала: 2024, Номер 417, С. 135210 - 135210

Опубликована: Фев. 1, 2024

Язык: Английский

Процитировано

15

Carbonation curing of magnesium-coal slag solid waste backfill material: Study on properties of flow, mechanics and carbon sequestration DOI Creative Commons
Zhiyu Fang,

Yuheng Gao,

Wei He

и другие.

Case Studies in Construction Materials, Год журнала: 2024, Номер 20, С. e03204 - e03204

Опубликована: Апрель 24, 2024

To expedite the achievement of ''30-60 double carbon'' goal, it is imperative to create a novel, low-carbon, cost-effective, and sustainable backfill material for mining purposes. Against this background, paper investigates workability, carbonation performance carbon sequestration capacity coal gangue (CG), magnesium slag (MS) fly ash (FA) as solid waste material. The results study show that: (1) rheological properties CFM fresh slurry conform Herschel-Balkley (H-B) model, its flowability meets requirements mine transport. With increasing MS content, yield stress, apparent viscosity, thixotropy shear thickening increase, micro-slump diffusion diameter decrease. (2) Carbonation curing can effectively improve early UCS CFM. highest was 8.854 MPa after 7 days curing, which 27.84 times higher than that standard curing. In addition, increased with increase age content. (3) produces large number products such calcium carbonate makes microstructure denser. (4) absorb up 14.55% CO2 carbonation. (5) volume stability significantly improved summary, not only new type low-cost, low-carbon material, but practical application in field backfilling also has great potential realisation resource utilisation sequestration.

Язык: Английский

Процитировано

15

Mechanical properties under triaxial compression of coal gangue-fly ash cemented backfill after cured at different temperatures DOI
Weizhen Liu, Zhongjing Hu, Chao Liu

и другие.

Construction and Building Materials, Год журнала: 2023, Номер 411, С. 134268 - 134268

Опубликована: Ноя. 25, 2023

Язык: Английский

Процитировано

18

Microstructural evolution and strengthening mechanism of aligned steel fiber cement-based tail backfills exposed to electromagnetic induction DOI
Xihao Li, Shuai Cao, Erol Yilmaz

и другие.

International Journal of Minerals Metallurgy and Materials, Год журнала: 2024, Номер 31(11), С. 2390 - 2403

Опубликована: Сен. 20, 2024

Язык: Английский

Процитировано

8

Mechanical response of stress damaged cemented tailings backfill based on pore structure and acoustic emission characteristics DOI
Xuepeng Song, Yuxin Hao

Construction and Building Materials, Год журнала: 2023, Номер 404, С. 133278 - 133278

Опубликована: Сен. 11, 2023

Язык: Английский

Процитировано

15

Effect of early damage on the mechanical properties, localized deformation and damage failure of cemented tailings backfill DOI
Zhuoran Liu, Botao Li, Qi Sun

и другие.

Construction and Building Materials, Год журнала: 2024, Номер 424, С. 135925 - 135925

Опубликована: Март 23, 2024

Язык: Английский

Процитировано

5

Effect of alkaline rice straw fibers content and curing ages on static mechanical properties of cemented lithium mica tailings backfill DOI Creative Commons

Pan Hong-ke,

Q.Z. Xiao,

Nanhui Huang

и другие.

Case Studies in Construction Materials, Год журнала: 2024, Номер 21, С. e03450 - e03450

Опубликована: Июль 1, 2024

Alkaline rice straw fibers (ARSF), as a widely available and recyclable plant fiber source, can provide new insights for improving the mechanical properties of backfill treatment agricultural waste resources research. Different amounts ARSF were prepared to enhance cemented lithium mica tailings (CLMTB), uniaxial compression strength (UCS) tests Brazilian splitting tensile conducted study influence on static CLMTB samples. Firstly, flowability mortars with different content was tested, results showed that decreased by maximum 5.4 %, which met construction requirements cement mortar in process. The UCS an increasing trend then reduced increased content, 0.15 % being optimal showing increase 14.2 %. Under loading conditions, gradually 0.60 content. samples exponential growth curing age. Additionally, there linear functional relationship between age experimental indicate improved toughness changed failure mode In meantime, it residual bearing capacity peak strain

Язык: Английский

Процитировано

5

Study on the heat transfer characteristics of cemented backfill heat exchangers with a horizontally penetrating rough fracture under groundwater advection DOI

Rui Zhan,

Bo Zhang, Lang Liu

и другие.

Computers and Geotechnics, Год журнала: 2024, Номер 177, С. 106792 - 106792

Опубликована: Окт. 11, 2024

Язык: Английский

Процитировано

3

Mechanical performance and damage mechanism of steel slag-cement pasted backfill under high-temperature cured and cyclic static loading DOI Creative Commons
Jianshuai Hao, Zihan Zhou, Zhonghui Chen

и другие.

Journal of Materials Research and Technology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0