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Siya Paul Rimoy

Senior Lecturer

College of Engineering and Technology

Transportation and Geotechnical Engineering

Biography

Blue chip geotechnical civil engineer senior lecturer and researcher at University of Dar es Salaam (UDSM) Department of Transportation and Geotechnical Engineering as well as a consultant at UDSM Bureau for Industrial Cooperation (BICO).
Has a first class with honours BSc. in Civil & Structural Engineering degree from UDSM, MSc. with distinction in Geotechnical Engineering & Business Management and Diploma of the Imperial College. Also has an engineering PhD in geomechanics from Imperial College.
Chairman of Soils and Foundations Technical Committee of Tanzania Bureau of Standards which is mandated with proposing relevant Standards and Codes of Practice for national adoption. Previously Head of Department of Transportation and Geotechnical Engineering at the College of Engineering and Technology of University of Dar es Salaam for the trienniums 2018 – 2021 and 2021 - 2024. Previously honorary tresurer and council member of the Institution of Engineers Tanzania. Previously member of the National Technical Advisory Team for the first Standard Gauge Railway in Tanzania.

Licensed Consulting Engineer and Approved Professional Person (APP) of the United Republic of Tanzania Ministry of Water having undertaken multiple geotechnical site investigations for building constructions, bridges, jetties and power plants in Tanzania. Currently with particular interest in accelerating renewable energy development and adoption of cleaner technologies in civil engineering in Tanzania.

Research Interest

Energy geotechnics

Transport geotechnics

Contacts

Email:

Projects

Publications

Nangulama, H. K. & Rimoy, S. P. (2025). Feasibility of using bagasse ash incorporating limestone calcined clay cement as ordinary Portland cement replacement for stabilisation of black cotton soils. Cleaner Waste Systems, Volume 10, 100226, ISSN 2772-9125, https://doi.org/10.1016/j.clwas.2025.100226

Nangulama, H. K. and Rimoy, S (2024). Effectiveness of Bagasse Ash Incorporating Limestone Calcined Clay Cement (LC3) in Improving Shear Strength and Durability Properties of Black Cotton Soils, Advances in Civil Engineering, 7112465, https://doi.org/10.1155/adce/7112465

Rugabandana, G. and Rimoy, S. (2024). Resilient modulus characterization of unbound granular materials through laboratory dynamic cone penetration test. International Journal of Pavement Research and Technology Vol 17 (6): 1555 – 1571 https://doi.org/10.1007/s42947-023-00318-7

Siya Rimoy, Matias Silva I., and Richard J. Jardine (2022). Stability and load-displacement behaviour of axially cyclic loaded displacement piles in sands. Canadian Geotechnical Journal. 59(8): 1358-1372. https://doi.org/10.1139/cgj-2020-0738

Mdzovela, B. and Rimoy, S. (2021). Resilient modulus of siliciclastic unbound granular materials under repeated wheel load. Tanzania Journal of Engineering and Technology 40(2), College of Engineering and Technology, University of Dar es Salaam. pp 58 – 73, ISSN 1821-536X (print), ISSN 2619-8789 (electronic)

Ambrose, P. and Rimoy, S. (2021). Prediction of four-days soaked California Bearing Ratio (CBR) values from soil index properties. Tanzania Journal of Engineering and Technology 39(1), College of Engineering and Technology, University of Dar es Salaam. pp 28 – 38, ISSN 1821-536X (print), ISSN 2619-8789 (electronic)

Carroll, R., Carotenuto, P., Dano, C., Salama, I., Silva, M., Rimoy, S., Gavin, K., and Jardine, R. (2020). Field experiments at three sites to investigate the effects of age on steel piles driven in sand, Géotechnique70(6), pp. 469 – 489, https://doi.org/10.1680/jgeot.17.P.185

Rimoy, S., Silva, M., Jardine, R., Foray, P., Yang, Z., Zhu, B. & Tsuha, C. (2015). Field and model investigations into the influence of age on axial capacity of displacement piles in silica sands, Géotechnique 65 (7); pp 576 –589

Yang, Z. X., Jardine, R. J., Zhu, B. T. and Rimoy, S. P (2014). Closure to “Stresses Developed around Displacement Piles Penetration in Sand” by Z. X. Yang, R. J. Jardine, B. T. Zhu, and S. Rimoy, J. of Geotech. and Geoenviron. Eng, ASCE, DOI: 10.1061/(ASCE)GT.1943-5606.0001022

Yang, Z. X., Jardine, R. J., Zhu, B. T. and Rimoy, S. P (2014). Stresses developed around displacement piles penetration in sand, J. of Geotech. and Geoenviron. Eng, ASCE, 140(3): 04013027

Rimoy, S.P., Jardine, R.J., & Standing, J.R. (2013). Displacement response to axial cycling of piles driven in sand. Proc. of the Institution of Civil Engineers - Geotechnical Engineering, 166(2): 131 – 146

Tsuha, C.H.C., Foray, P., Jardine R. J., Yang, Z. X., Silva M., & Rimoy, S. (2012). Behaviour of displacement piles in sand under cyclic axial loading. Soils and Foundations. 52(3): 393 – 410