Evaluation of Rheology Measurements Techniques for Pressure Loss in Mine Paste Backfill Transportation

Ahmed, Haitham M.; Bharathan, Bhargav; Kermani, Mehrdad; Hassani, Ferri; Hefni, Mohammed A.; Ahmed, Hussin A. M.; Hassan, Gamal; Moustafa, Essam B.; Saleem, Hussein A.; Sasmito, Agus P.

doi:10.3390/min12060678

Cited by 8 publications

(3 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Earlier studies of activation treatment of backfill components in a disintegrator [65,77] or application of additives [78][79][80] showed positive results. In this regard, two types of slags were used in the experiments: without activation treatment and with activation treatment in the disintegrator.…”

Section: Methodsmentioning

confidence: 99%

Principles of Sustainable Development of Georesources as a Way to Reduce Urban Vulnerability

Kongar-Syuryun,

Klyuev,

Golik

et al. 2024

Urban Science

View full text Add to dashboard Cite

Humanity development is associated with higher spiritual and social behaviour and financial shape, which is an undeniable factor of urbanisation. Previously, in areas of georesource concentration, cities and settlements were formed with people exploiting these georesources. However, imperfect technologies lead to rapid depletion of reserves and industrial and environmental disasters, which affect the vulnerability of cities and the people living in them. The analysis of applied technologies has demonstrated that potash extraction is accompanied by a low recovery ratio, high mine accidents, and environmental problems. The principles of sustainable development of geo-resources for the creation of mining technologies that ensure industrial safety, environmental sustainability, and extending the life of the mining enterprise to save working places will reduce the vulnerability of cities. This article proposes the use of the room-and-pillar mining method with the replacement of natural supports with artificial ones. Three-stage stoping with backfill is considered. Numerical modelling has shown stabilisation of mining and geomechanical processes, which confirms the prospectivity of the method with backfill. For these purposes, this research presents a new backfill composition based on local industrial waste. Schemes of backfill preparation and feeding into the mined-out space are proposed. The proposed technology, based on the principles of sustainable development of georesources, is the foundation for an economically profitable, environmentally friendly, and socially responsible mining enterprise. The implementation of the principles of sustainable development of georesources will allow for the preservation of cities and reduce their vulnerability.

show abstract

Section: Methodsmentioning

confidence: 99%

Principles of Sustainable Development of Georesources as a Way to Reduce Urban Vulnerability

Kongar-Syuryun,

Klyuev,

Golik

et al. 2024

Urban Science

View full text Add to dashboard Cite

show abstract

“…While Figure 4 above shows yield stress against mass solids concentration, it is necessary to determine both yield stress and plastic viscosity to enable development of a suitable rheology model, such as the Bingham model (Ahmed et al 2022). For this material, these relationships were developed using a bench scale rotational viscometer and are reported in Table 2.…”

Section: Figure 4 Mass Solids Concentration Versus Yield Stressmentioning

confidence: 99%

Optimal paste backfill specification development

Wilson¹,

Leacy²

2023

Paste 2023: 25th International Conference on Paste, Thickened and Filtered Tailings

View full text Add to dashboard Cite

Optimisation of paste backfill specifications is an area of development in mine backfill operations and is practiced at several sites, with backfill mixtures tailored specifically for each stope. This, however, remains the exception rather than the rule across the industry. Often mines employ suboptimal backfill recipes which do not properly leverage the three principal components of a backfill specification, namely: strength, rheology, and curing time. This is compounded by limitations in material characterisation data and the means to develop and integrate this within reliable hydraulic models.Developing a strategy for determining this unique specification provides opportunities for improved backfill reticulation operation and binder minimisation while ensuring that the performance of the backfill aligns with the mining requirements and schedule.The paper describes how, through the use of material test work data, relationships linking these three performance criteria together can determine the optimal paste backfill specification. Case example data is used to demonstrate the analysis process and how a software solution developed by Paterson & Cooke can be used to enable its application in everyday operation.

show abstract

“…After adding the appropriate amount of binding materials according to the design mixing proportion, the prepared filling slurry is mixed evenly through a one-or twostage mixer and is continuously transported to the goaf along the long-distance backfill pipeline. The solidification and hardening process of the filling slurry effectively improves the resistance of the surrounding rock (Behera et al, 2021;Ahmed Haitham et al, 2022). The material particles in the low-or high-concentration filling slurry gradually sink under the action of self-weight, and the slurry concentration and density are improved after the water between the particle pores is extruded.…”

Section: Introductionmentioning

confidence: 99%

Strength variation characteristics of waste tailings cemented backfill materials with ultrafine particles

et al. 2023

View full text Add to dashboard Cite

This study investigates the use of self-produced solid waste in mines to backfill the goaf, with energy saving and emission reduction technology requirements. Using a relevant backfill mixing proportion test and mechanical property test, we analyzed the strength variation law of backfill materials under different concentrations and cementation powder addition. The results showed that, for backfill materials at 7 days with an ash-tailings ratio of 1:6, the strength of specimens with 52% and 49% prepared concentrations, respectively, increased by 1.361 and 1.266 times over specimens with 49% and 46% concentrations. For backfill materials with 49% prepared concentrations and ash-tailings ratios of 1:6, 1:9, and 1:12, the specimen strength of the backfill materials with ratios of 1:6 and 1:9 improved by 0.616 MPa and 0.321 MPa—109.28% and 114.6%, respectively—compared with 1:9 and 1:12 backfill materials at 60 days. It is thus evident that the quantity of binding materials added plays a critical function in improving the strength of backfill materials, and in the subsequent application of goaf backfill. The strength of backfill materials can be enhanced by improving the gradation of backfill aggregates and increasing the amount of binding materials so as to achieve cost reductions and sustainable development.

show abstract

Evaluation of Rheology Measurements Techniques for Pressure Loss in Mine Paste Backfill Transportation

Cited by 8 publications

References 40 publications

Principles of Sustainable Development of Georesources as a Way to Reduce Urban Vulnerability

Principles of Sustainable Development of Georesources as a Way to Reduce Urban Vulnerability

Optimal paste backfill specification development

Strength variation characteristics of waste tailings cemented backfill materials with ultrafine particles

Contact Info

Product

Resources

About