Investigations into engineering characteristics and inherent variability in bituminous sand

Articles in Press

Document Type : Research Paper

Authors

Department of Mining Engineering, Federal University of Technology, Nigeria.

10.22059/ijmge.2024.350350.595000

Abstract

Bituminous sand is an important geomaterial due to its numerous engineering applications and great economic potentials. The occurrence is diverse in nature and therefore, it is very crucial to study the engineering behaviour and understand the inherent variability in the engineering parameters needed in exploitation, design and construction in and/or on them. This study presents laboratory investigations into the engineering behaviour and the inherent variability in bituminous sand considering index, physical, fabric and geochemistry, mineralogy, oedometer and strength characteristics on the samples in the intact and reconstituted states. The findings can be summarised as follows: (1) The gradings are characterised by different particle sizes and hence, the bituminous sands are well-graded, (2) The fabrics are heterogeneous and isotropic and composed majorly of bituminous materials coated particles aggregation to clusters with inter- and intra- particle/cluster voids, (3) Silica and quartz dominate the composition and mineralogy with other elements and minerals in lesser proportions, (4) Bituminous sands have convergent behaviour and the compressibility is dependent of fines content, (5) Intact behaviour shows the presence of significant structure and (6) The inherent variability is high in some engineering grading descriptors, clay mineral, yield stress and strength, and low in the fines content, quartz mineral, compressibility and in situ specific volume and (7) Depending on the properties needed by the practitioners, interpolation and extrapolation from one point/location to the other could be made in these geomaterials.

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References

[1] Ola, S. A. (1991). Geotechnical properties and behaviour of Nigerian tar sand. Eng. Geol., 30, 325-336.
[2] Adebiyi, F. M., Asubiojo, O. I., & Ajayi T. R. (2008). Characterization of Nigerian Oil Sands by TXRF Spectrometry. Petroleum Science and Technology, 26, 29–39. https://doi.org/10.1080/10916460600705618
[3] Doan, D. H., Delage, P., Nauroy, J. F., Tang, A. M., & Youssef, S. (2012). Microstructural characterization of a Canadian oil sand. Can. Geotech. J., 49, 1212–1220. https://doi.org/10.1139/T2012-072.
[4] Delage, P., Doan, D. H, Nauroy, J. F., & Tang, A. M. (2013). Compression Behavior of Canadian Oil Sands. J. Geotech. Geoenviron. Eng., 139, 969-974. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000808
[5] Okewale, I.A., Olamijulo, O.E., & Olaleye, B.M. (2023). Investigation into the mechanical behaviour of silica rich bituminous sand. Geotech. Geol. Eng., 1-16. https://doi.org/10.1007/s10706-023-02462-0
[6] Okewale, I.A., & Grobler, H. (2024). Geochemical signature and prediction of mechanical characteristics of bituminous sand. Discover Geoscience, 2(4), 1-10. https://doi.org/10.1007/s44288-024-00005-5
 [7] Phoon, K. K., Kulhawy, F.H., & Grigoriu, M. D. (1995). Reliability-based design of foundation for transmission line structures. Electric Power Research Institute, Palo Alto, Report TR – 105000
[8] Phoon, K. K., & Kulhawy, F. H. (1999a). Characterisation of geotechnical variability. Canadian Geotechnical J., 36(4), 612-624.
[9] Phoon, K. K., & Kulhawy, F. H. (1999b). Evaluation of geotechnical property variability. Canadian Geotechnical J., 36(4), 625-639.
[10] Okewale, I. A. (2020a). Applicability of chemical indices to characterize weathering degrees in decomposed volcanic rocks. CATENA 189, 1–13. https://doi.org/10.1016/j.catena.2020.104475
[11] Okewale, I. A. (2020b). Compressibility and the effects of structure of tropical clay in incremental loading oedometer tests. Geotech Geol Eng., 38, 5355–5371. https://doi.org/10.1007/s10706-020-01369-4
[12] Okewale, I. A., & Grobler, H. (2022). Influence of fabric and mineralogy on the mechanics of dolomitic rocks. Int. J. Min Geo-Eng., 56(3),  https://doi.org/10.22059/IJMGE.2021.321215.594900
[13] JGS, (1995). Standards of the Japanese Geotechnical Society for soil sampling - standards and explanations – JGS 1221 – 1224; JGS 1231.
[14] Okewale, I. A., & Grobler, H. (2021b). Inherent complexities in weathered rocks: A case of volcanic rocks. Rock Mech Rock Eng. 1-22. https://doi.org/10.1007/s00603-021-02569-x
[15] Okewale, I. A., & Coop, M. R. (2017). A study of the effects of weathering on soils derived from decomposed volcanic rocks. Eng Geol., 222, 53–71. https://doi.org/10.1016/j.enggeo.2017.03.014
[16] Okewale, I. A., & Coop, M. R. (2018). Suitability of different approaches for analysing and predicting the behaviour of decomposed volcanic rocks. J. Geotech Geoenviron Eng. 144 (01048064s), 1–14. http://doi.org/10.1061/(ASCE)GT.1943-5606.0001944.
[17] Okewale, I. A., & Grobler, H. (2021a). Mechanics of compression in talc considering sample quality. Arab J Geosci. 14:441. https://doi.org/10.1007/s12517-021-06836-7
[18] Okewale, I. A., & Grobler, H. (2021c). Geochemistry and predictability of tropical clay behaviour using different techniques. Arabian J Geosci., 14(2209),1–15. https://doi.org/10.1007/s12517- 021-08596-w
[19] Gasparre, A., & Coop, M. R. (2008). Quantification of the effects of structure on the compression of a stiff clay. Can Geotech J., 45, 1324–1334. https://doi.org/10.1139/T08-052
[20] Cuccovillo, T., & Coop, M. R. (1997). Yielding and pre-failure deformation of structured sands. Geotechnique 47(3), 491-508.
[21] Cuccovillo, T., & Coop, M. R. (1999). On the mechanics of structured sands. Geotechnique 49(6), 741-760.
[22] Coop, M. R., & Atkinson, J. H. (1993). The mechanics of cemented carbonate sands. Geotechnique, 43(1), 53-67.
[23] Rocchi, I., Coop, M. R., Maccarini, M. (2017). The effects of weathering on the physical and mechanical properties of igneous and metamorphic saprolites. Eng. Geol. 231, 56–563.
International Journal of Mining and Geo-Engineering

Articles in Press, Accepted Manuscript
Available Online from 10 July 2024

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