Evaluation of the strength and ultrasonic properties of foam-cemented paste backfill

Shuai Xu; Fidelis T. Suorineni; Kunmeng Li; Yuanhui Li

doi:10.1080/17480930.2016.1215782

Evaluation of the strength and ultrasonic properties of foam-cemented paste backfill

Shuai Xu, Fidelis T. Suorineni, Kunmeng Li, Yuanhui Li

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

A foam-cemented paste backfill (FCPB) is proposed with the use of ultrasonic pulse velocity (UPV) measurements as a monitoring method in place of uniaxial compressive strength (UCS). The dynamic wave damping effect of vesicles created with bubbles from vesicants reduces the adverse effects of blasting and seismicity on backfill stability. UCS and UPV of FCPB are determined at various factor combinations. The results show that regardless of the changes of V/B, b/t and SC, the UCS and UPV of FCPB increased linearly with curing time and, therefore, UPV can be used to quickly evaluate the quality of FCPB.

Original language	English
Pages (from-to)	544-557
Number of pages	14
Journal	International Journal of Mining, Reclamation and Environment
Volume	31
Issue number	8
DOIs	https://doi.org/10.1080/17480930.2016.1215782
Publication status	Published - Jan 1 2017
Externally published	Yes

Keywords

Damping
Dynamic events
Foam-cemented paste backfill
Ultrasonic wave velocity
Uniaxial compressive strength

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Geology
Earth-Surface Processes
Management of Technology and Innovation

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abstract = "A foam-cemented paste backfill (FCPB) is proposed with the use of ultrasonic pulse velocity (UPV) measurements as a monitoring method in place of uniaxial compressive strength (UCS). The dynamic wave damping effect of vesicles created with bubbles from vesicants reduces the adverse effects of blasting and seismicity on backfill stability. UCS and UPV of FCPB are determined at various factor combinations. The results show that regardless of the changes of V/B, b/t and SC, the UCS and UPV of FCPB increased linearly with curing time and, therefore, UPV can be used to quickly evaluate the quality of FCPB.",

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