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 journalArticle

13 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 languageEnglish
Pages (from-to)544-557
Number of pages14
JournalInternational Journal of Mining, Reclamation and Environment
Volume31
Issue number8
DOIs
Publication statusPublished - Jan 1 2017
Externally publishedYes

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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