Mechanical, energy evolution, damage and microstructural behavior of cemented tailings-rock fill considering rock content and size effects

Construction and Building Materials, Год журнала: 2023, Номер 411, С. 134449 - 134449

Опубликована: Дек. 8, 2023

Язык: Английский

---

Effect of 3D printed skeleton shapes on strength behavior, stress evolution and microstructural response of cement-based tailings backfills

Construction and Building Materials, Год журнала: 2024, Номер 432, С. 136699 - 136699

Опубликована: Май 21, 2024

Язык: Английский

---

The influence of industrial solid waste in conjunction with lepidolite tailings on the mechanical properties and microstructure of cemented backfill materials

Construction and Building Materials, Год журнала: 2024, Номер 419, С. 135422 - 135422

Опубликована: Фев. 24, 2024

Язык: Английский

---

Effect of magnetic induction intensity and steel fiber rate on strength improvement of cementitious filling composites

Construction and Building Materials, Год журнала: 2024, Номер 428, С. 136417 - 136417

Опубликована: Апрель 27, 2024

Язык: Английский

---

Reinforcing effects of polypropylene on energy absorption and fracturing of cement-based tailings backfill under impact loading

International Journal of Minerals Metallurgy and Materials, Год журнала: 2024, Номер 31(4), С. 650 - 664

Опубликована: Апрель 1, 2024

Язык: Английский

---

Investigation of the fracture behavior of cemented waste rock-tailing backfill by digital image correlation technique and discrete element modeling

Construction and Building Materials, Год журнала: 2024, Номер 428, С. 136367 - 136367

Опубликована: Апрель 24, 2024

Язык: Английский

---

Mechanical model and strength development evolution of high content fly ash–cement grouting material

Construction and Building Materials, Год журнала: 2023, Номер 398, С. 132492 - 132492

Опубликована: Июль 17, 2023

Язык: Английский

---

Macro-mesoscopic mechanical properties and damage progression of cemented tailings backfill under cyclic static load disturbance

Composite Structures, Год журнала: 2023, Номер 322, С. 117433 - 117433

Опубликована: Авг. 6, 2023

Язык: Английский

---

Analyzing the microstructure of cemented fills adding polypropylene-glass fibers with X-ray micro-computed tomography

Journal of Materials Research and Technology, Год журнала: 2023, Номер 27, С. 2627 - 2640

Опубликована: Окт. 13, 2023

Fiber reinforced cementitious tailings backfill (FRCTB) is progressively employed in mining industry due to its high strength/stiffness-to-weight ratio. However, the wide use of FRCTB technique requires further study practice many different types fibers, either alone or combination. In this regard, paper explores impact composite (glass-polypropylene) fibers on microstructure FRCTBs considering weak surface and pore characteristics. The fractures backfills were quantitatively analyzed by a non-destructive X-ray micro-computed tomography system which permits imagining interior microstructures via construction 3D volumetric data diverse spatial scales. Quantitative parameters cover percent surface, porosity, sphericity. distribution surfaces, pores, fissures bridging effect also based reconstruction technique. Adding increased percentage FRCTB's surface. greater glass fiber dose, larger Composite can lessen porosity. smallest porosity was 0.07% for PP contents 0.4wt.% 0.2wt.%, respectively. A rise dose causes volume 10-100mm3 content. Fibers have 0.1-100mm3 deteriorates shape type leading reduction sphericity pores. There clear correlation between patterns along height specimens. Weak surfaces pores are prone develop as fractures. limit crack expansion FRCTB. Lastly, presents time- cost-saving method analyzing microstructure.

Язык: Английский

---

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

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

Опубликована: Сен. 20, 2024

Язык: Английский

---