A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Improvement of tailings gradation on workability and strength of cemented tailings backfill
Highlights Application of hydraulic cyclone for gradation of full tailings. Improvement in workability and stability of CTB. Investigation of effect of tailings gradation on quality of CTB. Acquisition of optimal yield for grading full tailings.
Abstract Cemented tailings backfill (CTB) is mainly made with tailings, binder and water, and it commonly flows through pipeline into mined-out areas for the support of rock. The grain composition of tailings can notably affect the workability and strength of CTB. As a result, this study aims to utilize hydraulic cyclone to optimize the particle size distribution of the tailings that are used to prepare the CTB, according to four gradation yields. The settlement properties, bleeding rate, slump and rheology of the fresh CTB are investigated, and the uniaxial compressive strength of the hardened CTB is also measured. The obtained outcomes indicate that the tailings gradation can remarkably improve the workability and strength of the CTB. The gradation yield of 50% is regarded as the optimal value for grading the tailings. This study is expected to provide contributions for improving the CTB performance, in terms of optimizing the tailing grain composition by the hydraulic cyclone.
Improvement of tailings gradation on workability and strength of cemented tailings backfill
Highlights Application of hydraulic cyclone for gradation of full tailings. Improvement in workability and stability of CTB. Investigation of effect of tailings gradation on quality of CTB. Acquisition of optimal yield for grading full tailings.
Abstract Cemented tailings backfill (CTB) is mainly made with tailings, binder and water, and it commonly flows through pipeline into mined-out areas for the support of rock. The grain composition of tailings can notably affect the workability and strength of CTB. As a result, this study aims to utilize hydraulic cyclone to optimize the particle size distribution of the tailings that are used to prepare the CTB, according to four gradation yields. The settlement properties, bleeding rate, slump and rheology of the fresh CTB are investigated, and the uniaxial compressive strength of the hardened CTB is also measured. The obtained outcomes indicate that the tailings gradation can remarkably improve the workability and strength of the CTB. The gradation yield of 50% is regarded as the optimal value for grading the tailings. This study is expected to provide contributions for improving the CTB performance, in terms of optimizing the tailing grain composition by the hydraulic cyclone.
Improvement of tailings gradation on workability and strength of cemented tailings backfill
Zhang, Xizhi (author) / Wu, Di (author) / Lu, Hu (author) / Liu, Liang (author) / Zheng, Shilong (author)
2023-05-01
Article (Journal)
Electronic Resource
English
Mix proportioning of underground cemented tailings backfill
| British Library Online Contents | 2008
Mix proportioning of underground cemented tailings backfill
| Elsevier | 2006
Mix proportioning of underground cemented tailings backfill
| Online Contents | 2008