Mechanical and Rheological Properties of Cemented Tailings Backfill
A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Environmental Mineralogy and Biogeochemistry".
Deadline for manuscript submissions: closed (31 May 2024) | Viewed by 376
Special Issue Editors
Interests: mine waste management; seismic geotechnical engineering; mining geotechnical engineering
Interests: deep geological repository (DGR); cemented paste backfill technology (CPB); engineered barrier system (Sand-Bentonite); underground storage of natural gas; geothermal energy
Special Issue Information
Dear Colleagues,
Cemented tailings backfill (CTB) or cemented paste backfill (CPB) is a novel, sustainable, and environmentally friendly technology for managing waste materials from mining operations, such as tailings. This method involves mixing mine waste material with binders, such as cement, and water to create a stable backfill for underground mining openings (stopes). It provides secondary support for these stopes and minimizes the risk of ground subsidence in the mine area.
During the transportation of CTB material from the paste plant to the mine stope, the rheology of the CTB material is affected by several factors, including transportation time, temperature variation, binder type, and chemical composition. Inappropriate rheological properties can lead to the destabilization of CTB flowability through the delivery system. This can result in significant financial losses due to pipeline clogging caused by unexpected hardening of CPB during transportation and delays in the mining operations. These factors also impact the mechanical strength of CTB, which significantly influences its performance after placement in the mine stope.
This Special Issue aims to highlight the crucial factors that affect the mechanical and rheological properties of cemented tailings backfill. Understanding these properties is essential for optimizing the design and performance of backfill systems, enhancing mine safety, and minimizing environmental impacts. The research contributions in this issue explore key aspects such as strength, deformability, flow behavior, and durability of cemented tailings backfill, shedding light on innovative techniques and materials for more efficient and sustainable mining practices.
Dr. Imad Alainachi
Dr. Othman Nasir
Guest Editors
Manuscript Submission Information
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Keywords
- mine
- mine waste
- cemented tailing backfill
- rheology
- yield stress
- viscosity
- temperature
- cement
- hydration
- sustainable
