Experimental Study of the Behavior of Cemented Paste Backfill under High Isotropic Compression
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 146, Issue 11
Abstract
Deep and high-stress mining relies on backfill to support exposed host rock surfaces, but the backfill response to isotopic compression is virtually unknown. This paper studied the properties and behavior of a cemented paste backfill (CPB) for different cement contents (CCs) and specimen curing times (CTs), for isotropic stresses up to 6.5 MPa. The isotropic compressive behavior was characterized by an initial linear elastic preyield response quantified by the bulk modulus and a linear inelastic postyield response at high stress. The results showed that the postyield compression line loci depend on cement content and curing time of CPB, and fitting functions were determined to predict this evolving behavior based on cement content and specimen cure time. The results could form the basis for developing and calibrating the isotropic compression hardening laws for future constitutive models.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The authors express their gratitude to Barrick Gold and the Natural Sciences and Engineering Research Council Canada (Collaborative Research and Development Grant No. 514220-1) for financial support of this research as a part of a larger investigation into the behavior of high-performance cemented paste backfill.
References
Benzaazoua, M., J. Ouellet, S. Servant, P. Newman, and R. Verburg. 1999. “Cementitious backfill with high sulfur content physical, chemical, and mineralogical characterization.” Cem. Concr. Res. 29 (5): 719–725. https://doi.org/10.1016/S0008-8846(99)00023-X.
Cuccovillo, T., and M. R. Coop. 1999. “On the mechanics of structured sands.” Géotechnique 49 (6): 741–760. https://doi.org/10.1680/geot.1999.49.6.741.
Fahey, M., M. Helinski, and A. Fourie. 2011. “Development of specimen curing procedures that account for the influence of effective stress during curing on the strength of cemented mine backfill.” J. Geotech. Geol. Eng. 29 (5): 709–723. https://doi.org/10.1007/s10706-011-9412-2.
Hassani, F., K. Fotoohi, and C. Doucet. 1998. “Instrumentation and backfill performance in a narrow vein gold mine.” Int. J. Rock Mech. Min. Sci. 35 (4–5): 392. https://doi.org/10.1016/S0148-9062(98)00122-3.
Jafari, M., M. Shahsavari, and M. Grabinsky. 2020a. “Cemented paste backfill 1-D consolidation results interpreted in the context of ground reaction curves.” Rock Mech. Rock Eng. 53: 4299–4308. https://doi.org/10.1007/s00603-020-02173-5.
Jafari, M., M. Shahsavari, and M. Grabinsky. 2020b. “Hydration effects on specific gravity and void ratio of cemented paste backfill.” Geotech. Test. J. 43 (5): 1300–1316. https://doi.org/10.1520/GTJ20190094.
Kasama, K., K. Zen, and K. Iwataki. 2006. “Undrained shear strength of cement-treated soils.” Soils Found. 46 (2): 221–232. https://doi.org/10.3208/sandf.46.221.
Klein, K., and D. Simon. 2006. “Effect of specimen composition on the strength development in cemented paste backfill.” Can. Geotech. J. 43 (3): 310–324. https://doi.org/10.1139/t06-005.
le Roux, K. A., W. F. Bawden, and M. F. Grabinsky. 2005. “Field properties of cemented paste backfill at the Golden Giant mine.” Trans. Inst. Min. Metall., Sect. A 114 (2): 65–80. https://doi.org/10.1179/037178405X44557.
Liu, M. D., and J. P. Carter. 1999. “Virgin compression of structured soils.” Géotechnique 49 (1): 43–57. https://doi.org/10.1680/geot.1999.49.1.43.
Mitchell, R. J. 1986. “Centrifuge model tests on backfill stability.” Can. Geotech. J. 23 (3): 341–345. https://doi.org/10.1139/t86-048.
Ouellet, S., B. Bussière, M. Aubertin, and M. Benzaazoua. 2007. “Microstructural evolution of cemented paste backfill: Mercury intrusion porosimetry test results.” Cem. Concr. Res. 37 (12): 1654–1665. https://doi.org/10.1016/j.cemconres.2007.08.016.
Potvin, Y., E. Thomas, and A. Fourie. 2005. Handbook on mine fill. Nedlands, Australia: Australian Centre for Geomechanics.
Raffaldi, M. J., J. B. Seymour, J. Richardson, E. Zahl, and M. Board. 2019. “Cemented paste backfill geomechanics at a narrow-vein underhand cut-and-fill mine.” Rock Mech. Rock Eng. 52 (12): 4925–4940. https://doi.org/10.1007/s00603-019-01850-4.
Rios, S., A. Viana da Fonseca, and B. A. Baudet. 2012. “Effect of the porosity/cement ratio on the compression of cemented soil.” J. Geotech. Geoenviron. Eng. 138 (11): 1422–1426. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000698.
Rotta, G. V., N. C. Consoli, P. D. M. Prietto, M. R. Coop, and J. Graham. 2003. “Isotropic yielding in an artificially cemented soil cured under stress.” Géotechnique 53 (5): 493–501. https://doi.org/10.1680/geot.2003.53.5.493.
Silva dos Santos, A. P., N. C. Consoli, K. S. Heineck, and M. R. Coop. 2010. “High-pressure isotropic compression tests on fiber-reinforced cemented sand.” J. Geotech. Geoenviron. Eng. 136 (6): 885–890. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000300.
Smith, P. R., R. J. Jardine, and D. W. Hight. 1992. “The yielding of Bothkennar clay.” Géotechnique 42 (2): 257–274. https://doi.org/10.1680/geot.1992.42.2.257.
Thompson, B. D., W. F. Bawden, and M. W. Grabinsky. 2012. “In situ measurements of cemented paste backfill at the Cayeli Mine.” Can. Geotech. J. 49 (7): 755–772. https://doi.org/10.1139/t2012-040.
Thompson, B. D., M. W. Grabinsky, R. Veenstra, and W. F. Bawden. 2011. “In situ pressures in cemented paste backfill—A review of fieldwork from three mines.” In Proc., 14th Int. Seminar on Paste and Thickened Tailings, 491–503. Perth, Australia: Australian Centre for Geomechanics.
Walske, M. L., H. McWilliam, J. Doherty, and A. Fourie. 2015. “Influence of curing temperature and stress conditions on mechanical properties of cementing paste backfill.” Can. Geotech. J. 53 (1): 148–161. https://doi.org/10.1139/cgj-2014-0502.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 146 • Issue 11 • November 2020
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Jan 27, 2020
Accepted: Jun 18, 2020
Published online: Aug 31, 2020
Published in print: Nov 1, 2020
Discussion open until: Jan 31, 2021
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