Probing Cemented Paste Backfill using Nuclear Magnetic Resonance Relaxometry and Uniaxial Compressive Strength to Understand Rapid Hydration Rate for Mining Operations

Razyq Nasharuddin

doi:10.26182/crmn-xq92

Probing Cemented Paste Backfill using Nuclear Magnetic Resonance Relaxometry and Uniaxial Compressive Strength to Understand Rapid Hydration Rate for Mining Operations

Razyq Nasharuddin

School of Engineering

Research output: Thesis › Doctoral Thesis

47 Downloads (Pure)

Abstract

Vast volumes of tailings have been generated due to intensive mining operations. Hence, the mining industry has adopted mitigating actions to limit the accumulation of tailings. Cemented paste backfill (CPB) is an emerging technology that involves the safe deposition of solids into underground openings. In this work, we utilised low-field nuclear magnetic resonance (NMR) to investigate the microstructural changes of CPB materials. Additionally, we investigated the mechanical strength of CPB by utilising high salinity water mixtures since access to tap water in remote mining operations is expensive. The results presented have important implications on the mass adoption of CPB technology.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Johns, Michael, Supervisor Fridjonsson, Einar, Supervisor
Thesis sponsors	Australian Government Research Training Program
Award date	5 Apr 2023
DOIs	https://doi.org/10.26182/crmn-xq92
Publication status	Unpublished - 2023

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10.26182/crmn-xq92

THESIS - DOCTOR OF PHILOSOPHY - NASHARUDIN Razyq - 2023
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3 Article

Cemented paste backfill compressive strength enhancement via systematic water chemistry optimisation
Nasharuddin, R., Luo, G., Robinson, N., Fourie, A., Johns, M. L. & Fridjonsson, E. O., 12 Sept 2022, In: Construction and Building Materials. 347, 128499.
Research output: Contribution to journal › Article › peer-review
6 Citations (Scopus)
Pore Structure Evolution of Cemented Paste Backfill Observed with Two-Dimensional NMR Relaxation Correlation Measurements
Robinson, N., Nasharuddin, R., Luo, G., Fourie, A., Fridjonsson, E. O. & Johns, M. L., 15 Sept 2021, In: Industrial & Engineering Chemistry Research. 60, 36, p. 13253-13264 12 p.
Research output: Contribution to journal › Article › peer-review
6 Citations (Scopus)
Understanding the microstructural evolution of hypersaline cemented paste backfill with low-field NMR relaxation
Nasharuddin, R., Luo, G., Robinson, N., Fourie, A., Johns, M. L. & Fridjonsson, E. O., Sept 2021, In: Cement and Concrete Research. 147, 106516.
Research output: Contribution to journal › Article › peer-review
32 Citations (Scopus)

Cite this

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title = "Probing Cemented Paste Backfill using Nuclear Magnetic Resonance Relaxometry and Uniaxial Compressive Strength to Understand Rapid Hydration Rate for Mining Operations",

abstract = "Vast volumes of tailings have been generated due to intensive mining operations. Hence, the mining industry has adopted mitigating actions to limit the accumulation of tailings. Cemented paste backfill (CPB) is an emerging technology that involves the safe deposition of solids into underground openings. In this work, we utilised low-field nuclear magnetic resonance (NMR) to investigate the microstructural changes of CPB materials. Additionally, we investigated the mechanical strength of CPB by utilising high salinity water mixtures since access to tap water in remote mining operations is expensive. The results presented have important implications on the mass adoption of CPB technology.",

keywords = "Cemented paste backfill, Microstructure, Tailings management, Nuclear magnetic resonance, Water chemistry",

author = "Razyq Nasharuddin",

year = "2023",

doi = "10.26182/crmn-xq92",

language = "English",

school = "The University of Western Australia",

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T1 - Probing Cemented Paste Backfill using Nuclear Magnetic Resonance Relaxometry and Uniaxial Compressive Strength to Understand Rapid Hydration Rate for Mining Operations

AU - Nasharuddin, Razyq

PY - 2023

Y1 - 2023

N2 - Vast volumes of tailings have been generated due to intensive mining operations. Hence, the mining industry has adopted mitigating actions to limit the accumulation of tailings. Cemented paste backfill (CPB) is an emerging technology that involves the safe deposition of solids into underground openings. In this work, we utilised low-field nuclear magnetic resonance (NMR) to investigate the microstructural changes of CPB materials. Additionally, we investigated the mechanical strength of CPB by utilising high salinity water mixtures since access to tap water in remote mining operations is expensive. The results presented have important implications on the mass adoption of CPB technology.

AB - Vast volumes of tailings have been generated due to intensive mining operations. Hence, the mining industry has adopted mitigating actions to limit the accumulation of tailings. Cemented paste backfill (CPB) is an emerging technology that involves the safe deposition of solids into underground openings. In this work, we utilised low-field nuclear magnetic resonance (NMR) to investigate the microstructural changes of CPB materials. Additionally, we investigated the mechanical strength of CPB by utilising high salinity water mixtures since access to tap water in remote mining operations is expensive. The results presented have important implications on the mass adoption of CPB technology.

KW - Cemented paste backfill

KW - Microstructure

KW - Tailings management

KW - Nuclear magnetic resonance

KW - Water chemistry

U2 - 10.26182/crmn-xq92

DO - 10.26182/crmn-xq92

M3 - Doctoral Thesis

ER -

Probing Cemented Paste Backfill using Nuclear Magnetic Resonance Relaxometry and Uniaxial Compressive Strength to Understand Rapid Hydration Rate for Mining Operations

Abstract

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Research output

Cemented paste backfill compressive strength enhancement via systematic water chemistry optimisation

Pore Structure Evolution of Cemented Paste Backfill Observed with Two-Dimensional NMR Relaxation Correlation Measurements

Understanding the microstructural evolution of hypersaline cemented paste backfill with low-field NMR relaxation

Cite this