Academic Staff - Department of Civil Engineering - USJ

Dr. Nilan Weerakoon

B.Sc.Eng. (Hons) (Peradeniya), M.Eng (Hokkaido,Japan), Ph.D. (Hokkaido,Japan), AMIE Sri Lanka

Senior Lecturer (Department of Civil Engineering)

  • weerakoon@sjp.ac.lk
Bio
Publications
Grants & Funding
Supervision
Contact

Dr. Nilan Weerakoon, a senior lecturer in Civil Engineering, obtained his first degree in Civil Engineering from the Faculty of Engineering, University of Peradeniya, in 2012 with a first class honours. Subsequently, he moved to the Hokkaido University, Japan on a full Monbukagakusho Scholarship awarded by the Japanese Government for a Master and Doctoral Degrees. He earned his MEng and PhD degrees specialized in Geotechnical Engineering in 2015, and 2018, respectively. His research interests include Solidification of soft soils mixed with different binders, Rheological properties of high water content soils, Engineering behavior of peat, Ground improvement technique, Slope stability, Long-term consolidation on structures &  Engineering properties between ancient construction materials.

Journal Publications

  • Weerakoon, N.R., Nishimura, S., Sato, H., Toda, K., Sato, T., and Arai, Y. (2020). Stiffness and strength mobilization in steel slag-mixed dredged clays in early curing, Ground Improvement, Vol.173, No.2, 65-81.
  • Toda K., Sato H., Weerakoon N., Nishimura S., Otake T., Sato T. (2018) Key Factors Affecting Strength Development of Steel Slag-Dredged Soil Mixtures, in Minerals, Vol.8, No.174, 1-16.

Conference Publications

  • Toda, K., Sato, H., Weerakoon, N., Nishimura, S., Otake, T., and Sato T. (2018). Key Factors Affecting Strength Development of Steel Slag-Dredged Soil Mixtures, International Symposium-Effectiveness of Geopolymer in Decommissioning Furnace (February 6).
  • Weerakoon N., Nishimura, S., Sato, H., Toda, K., Sato, T., and Arai, Y. (2017). Laboratory estimation of stiffness and strength mobilization in steel slag-mixed dredged clays with curing time, in The Proceedings of the 3rd International Conference on Ground Improvement and Ground Control, Hangzhou, China, (October 27-29), (In print.).
  • Toda, K., Otake T., Sato, T., Weerakoon, N., Sato, H., and Nishimura, S. (2017). Key Factors of Metastable Formation for Strength Development in Steel Slag-Dredged Soil Mixtures, International Symposium on Earth Resources Management & Environment, Colombo, Sri Lanka, (August 29-30).
  • Toda K., Arai Y., Otake T., Sato T., Weerakoon N., Sato H., and Nishimura, S. (2017). Effect of silica-bearing phases in dredged soil on the strength development of steel slag-dredged soil mixtures. 16th International Clay Conference, Granada, Spain, (July 17-21).
  • Weerakoon, W.M.N.R., Nishimura, S., Sato, H., Toda, K., Sato, T., and Arai, Y. (2017). Characteristics of stiffness and strength mobilization in steel slag-mixed dredged clays, 52th Japan National Conference on Geotechnical Engineering, Nagoya, Japan, (July 12-15), Vol.52, 437-438.
  • Weerakoon, W.M.N.R., Sato, H., and Nishimura, S. (2017). Stiffness and strength mobilization in steel slag-mixed dredged clays with various curing time, The JGS Hokkaido Branch Technical Report, Kitami, Japan, (February 3-4), Vol.57, 297-306.
  • W.M.N.R.Weerakoon and H.Tanaka, 2015. “Correlation between Vane shear and Viscometer tests on clayey soils under high water content”, the 15th Asian Regional Conference (15ARC) on Soil Mechanics and Geotechnical Engineering, 9th-13th November, Fukuoka, Japan.
  • W.M.N.R.Weerakoon, H.Tanaka, 2015. “Rheological characteristics of high water content clayey soils”, 50th Japan National Conference on Geotechnical Engineering, 2nd, 3rd and 4th September, Sapporo, Japan.
  • W.M.N.R.Weerakoon, N.Nunoya., and H.Tanaka, 2014. “Yield stress of clayey soils under high water content measured by Vane and Viscometer”, 49th Japan National Conference on Geotechnical Engineering, 15th, 16th and 17th July, Fukuoka, Japan.
  • W.M.N.R.Weerakoon, K.T.S.Karunanayake, V.Wickramasinghe (2012). “Use of Analytic Hierarchy Process (AHP) for Solving Traffic Issues Due to Ad-hoc Urban Planning”,International Conference on Sustainable Built Environment,14th ,15th and 16th December, Sri Lanka.
  • W.M.N.R.Weerakoon, U.P.A.S.Ukwatta, D.L.N.B.Jayawardana, C.K.Pathirana, H.Abeyruwan (2012). “Variability of Chemical composition of Some Cements Available on Sri Lankan Market”.SLSAJ annual research journal.24th, November, Japan.
  • W.M.N.R.Weerakoon, U.P.A.S. Ukwatta, D.L.N.B.Jayawardana, C.K.Pathirana, “Variation of Physical and Chemical Properties of fly ash based Portland Pozzolana cement”. CERES’ 2012, Organized by Civil Engineering Societies of the Peradeniya, Ruhuna and Moratuwa,4th of July, Sri Lanka.
  • MEXT scholarship was awarded by the Government of Japan to read Doctoral Course at the Hokkaido University, October 2015
  • MEXT scholarship was awarded by the Government of Japan to read Masters Course at the Hokkaido University, October 2013

Undergraduate Research Supervision

  • Stiffness and Strength Mobilization in Quarry Dust and Paper Sludge (Waste Water Treatment Plant) – Mixed Sri Lankan Dredged Clays in Early Curing
  • Rheological Properties of Clayey Soils at High Water Content Measured by Fall Cone and Slump Tests
  • Investigation of Consolidation Parameters of Peat Soils by One-Dimensional Oedometer Consolidation Test
  • Strength Improvement of Soft Clayey Soils Blends with Recycled Construction and Demolition Waste Materials
  • Improvement of thermal comfort of paving blocks/ tiles

Email: weerakoon@sjp.ac.lk