Senior Lecturer (G I)
Civil Engineering
Faculty of Engineering Technology
Contact:
Kandy Regional Centre, Ground floor, Faculty of Engineering Technology building.
Office: +94 812494495, Ext: 164 Mobile: NULL
E-mail: laudu@ou.ac.lk lakshika0807@hotmail.com
Senior Lecturer (Gr. I)
Dr. K.M.L.A Udamulla graduated from University of Peradeniya in 1993 with a B.Sc. (Eng.) Hons. in Civil Engineering. She completed her Master of Philosophy in Geotechnical Engineering in 1997 from the University of Hong Kong. She earned her Doctor of Philosophy from the University of Melbourne in 2012. Dr. Udamulla is currently working as a senior lecturer in the Department of Civil Engineering, in the Open University of Sri Lanka at the Kandy Regional Centre.
Areas of Specialization:Geotechnical Engineering
Research interests:Soil improvement, Landfill lining and covers with locally available material, Waste material as alternative construction materials
Affiliations:Member of the Sri Lanka Association of Advancement of Science, Sri Lanka (SLAAS)
Member -Sri Lanka National Committee on Large dams
Member – National Science Foundation
Programme Coordination:
DTech (Civil Engineering), BTech (Civil Engineering)
Course Coordination:CVX4446 – Construction Engineering and Materials
CVX4350 – Quantity Surveying
CEY6197 – Project Identification & Literature Survey
CEY6498 – Individual Project – Type A (Civil)
CEY6595 – Individual Project – Type B (Civil)
CEY6496 – Group Project (Civil)
Awards:.
Researches:Research Publications
1. Goonewardena, L.A., Wrigley, R., Edis, R. and Dassanayake, K.B.D,.2011 “Chemically Stabilized Biosolids as Compacted Landfill Liners” The Twenty-sixth International Conference on Solid Waste Technology and Management, Philadelphia. USA, March 27-30: 1202-1213
2. Goonewardena, L.A., Wrigley, R., Edis, R, Dassanayake, K.B.D. and Doronila, A., 2011. “Adsorption of Heavy Metals by Biosolids with Admixtures” The Twenty-sixth International Conference on Solid Waste Technology and Management, Philadelphia. USA, March 27-30: .801-812.
3. Goonewardena, L.A., Wrigley, R., Edis, R. and Dassanayake, K.B.D., 2011. “Mechanically stabilized Clay Contaminated Biosolids as Compacted Landfill Liners” In: Shahin, M.A. and Nikraz, H.R. (eds.), Proceedings of the International Conference on Advances in Geotechnical Engineering, 543-548, Curtin University, Perth, Western Australia
4. Wanigaratne, D.S. and Udamulla K.M.L.A 2012. “Solution for Bioslids Disposal of Biyagama Export Processing Zone by developing an Embankment Fill Material to construction industry”, Paper presented at the Symposium on Urban Mining, Bergamo, Italy, 21-23 May.
5. Goonewardena, L.A., Wrigley, R., Edis, R. and Dassanayake, K.B.D 2012. “Chemically Stabilized Biosolids as Compacted Landfill Liners” The Journal of Solid Waste Technology and Management, 38 (3) : 182-193
6. Wanigaratne, D, Udamulla, L 2012. Mechanically and Chemically stabilized Biosolids as Embankment Fill Material. International conference on Sustainable Built Environment (ICSBE 2012), 14th, 15th, 16th December, Earl’s Regency Hotel, Kandy Sri Lanka, SBE/12/44
7. Erandi, N.G.N, Sakunthala, W.C, Udamulla, K.K.L.A, 2013. Use of Bottom Ash as fine aggregate in manufacturing concrete paving blocks, International symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development, pp 69-74, 27th September 2013, University of Ruhuna, Sri Lanka
8. Erandi, N.G.N, Sakunthala, W.C, Udamulla, K.K.L.A, 2013. Properties of concrete paving blocks made by using Bottom Ash as a partial replacement of natural sand, 4th International conference on Structural Engineering and Construction Management, 13th , 14th 15th December, Earl’s Regency Hotel, Kandy, Sri Lnaka
9. Costa, M.B.M, Dassanayake, D.D.T, Tantirimudalige, M.N, Udamulla, K.M.L.A and Ekneligoda, T.C, 2014. A comparative study of concrete properties using coconut shells with fibres and witrhout fibres as coarse aggregate. 5th International Conference on Sustainable Built Environment, 34- 39, 12th to 15th December Kndy Sri Lanka.
10. Wanigaratne, D, Udamulla, K.M.L.A , 2015. Stabilized biosolids with admixtures as an alternative material for embankment filling. 15th International Waste Management and Landfill Symposium , Forte Village_ S.Margherita di Pula(CA)_Italy 5_9 October.
11. Anjithan, K, Ratnayake, N, Athapattu, B.C.L and Udamulla, L.A, 2016. Sludge of water treatment plants: Sustainable disposal practices. 8th International Perspective on Water Resources and the Environmental American Society of Civil Engineers/ Environmental and Water Resources Institute, January 4-6, Colombo, Sri Lanka
12. Piyarathne, A.M.I.E and Udamulla, K.M.L.A, 2016. “ Use of Bottom Ash in replacement of river sand in making cement mortar” 4TH International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development, pp 191- 197, 3rd March, Faculty of Engineering, University of Ruhuna, Sri Lanka
13. Darshika, A.A.T and Udamulla, K.M.L.A, 2016. “ Use of Construction and Demolition Waste as Fine Aggregate in manufacturing concrete paving blocks” 4TH International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development, pp 221- 226, 3rd March, Faculty of Engineering, University of Ruhuna, Sri Lanka
14. Wijenayaka, J.N, Udamulla, L.A and Tantirimudalige, M.N, 2016. I nvestigation of the drinking quality of water collected by rain water harvesting with different types of roofing materials in Hambantota District in Sri Lanka, The 7th International Conference on sustainable built environment, 16th – 18th December, Earl’s Regency Hotel, Kandy, Sri Lanka, pp 61-66
15. Ranatunga, R.M.S.B.S and Udamulla, K.M.L.A, 2017. “Waste water purification using locally available plants” 5th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development, pp 117- 124, 16th March, Faculty of Engineering, University of Ruhuna, Sri Lanka
16. Karunarathne, D.V., Arulolipavan, K and Udamulla, K.M.L.A, 2017. “Assessment of Flyash based Geo Polymer concrete paving blocks for Sri Lankan roads” 5th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development, pp 213-219, 16th March, Faculty of Engineering, University of Ruhuna, Sri Lanka
17. Abeysekera, D.P.L, Fernando, D.D.S.L, Randenigama, B.M, Udamulla, K.M.L.A and Pradeep, T.L, 2017. “An experimental and analytical study of the critical properties of compressed stabilized earth blocks” 5th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development, pp 449- 454, 16th March, Faculty of Engineering, University of Ruhuna, Sri Lanka
18. Sitharika, A.V.D.T and Udamulla, K.M.L.A, 2017. ‘ Stabilization of Dispersive soil using flyash, bottom ash and hydrated lime’. 22nd International Forestry and Environment Symposium, vol. 22, 10th – 11th Waskaduwa, Sri Lanka
19. Darshika, A.A.T and Udamulla, K.M.L.A, 2017. ‘ Properties of concrete paving blocks made by using recycled demolished concrete as a partial substitute material for natural sand’, 8th International Conference on Structural Engineering and Construction Management, 7th -9th December, Kandy, Sri Lanka
20. Eriyagama, N, Thilakarathne, M, Perera, H. P. T. W,. Munaweera.T,Mutuwatte, L, Smakhtin,V, Premachandra, W and Udamulla, L, 2017. ‘Actual and perceived causes of flood risk: climate vs anthropogenic effects in a wet zone catchment in Sri Lanka’. Water International 42(7): 874-892 (ISI IF 1.538).
21. Sitharika, A.V.D.T and Udamulla, K.M.L.A, 2017. ‘ Syabilization of Dispersive soil using flyash, bottom ash and hydrated lime’, 8th International Conference on Structural Engineering and Consruction Management, pp, 70-74. 7th -9th December, Kandy, Sri Lanka
22. Wijewardena, M.A.C.D, De Alwis, A.D.E , Dilini Lakmini, S.A.D and Udamulla, K.M.L.A. 2017. ‘ Potential of using Demolished concrete and recycled bricks as materials in sub base applications’. 8th International Conference on Structural Engineering and Consruction Management, pp, 12-17. 7th -9th December, Kandy, Sri Lanka
23. Eriyagama, N, Smakthin, V and Udamulla, L ,2018. Centralized versus distributed reservoirs: an investigation of their implications on environmental flows and sustainable water resources management, Proceedings of the International Association of Hydrological Sciences, vol. 379, pp. 43-47
24. Kodikara, S.K.K.D.D, Thenuka Kalhara, E.H and Udamulla, K.M.L.A, 2018. The use of recycled demolished concrete as aggregates in hot mix asphalt paving mixes. 9th International Conference on Sustainable Built Environment. pp, 91-97. 13th -15th December, Kandy, Sri Lanka
25. Kotandeniya, W.M.K.W.S.R, Perera, V.A.N, Priyadarshana, M.S.T and Udamulla, K.M.L.A, 2018. Unwashed offshore sand for general purpose concrete. 9th International Conference on Sustainable Built Environment. pp, 79-83. 13th -15th December, Kandy, Sri Lanka
26. Rathnayake, R.M.I.E, Jayathilake, K.P.C.J and Udamulla, K.M.L.A, 2019. Evaluation of the use of recycled construction and demolition waste in road construction in Sri Lanka. International Conference on Civil Engineering Applications, 25th and 26th July, University of Moratuwa, Sri Lanka
27. Dolage, D.A.R, Roshan, K.B.R, Fernando, F.G.H , Sewwandi, G.A.S and Udamulla, K.M.L.A, Suitability of Water Treatment Plant Sludge (WTPS) to partially replace Flyash in auto aerated cement block manufacturing. 10th International Conference on Structural Engineering & Construction Management, Kandy, Sri Lanka
28. Eriyagama, N. Smakhtin, V and Udamulla, L., 2020. How much artificial surface storage is acceptable in a river basin and where should it be located_ A review . Journal of Earth Science Reviews. 208: 1-19, ISSN: 0012-8252
29. Subasinghe G.P.K.D, Imeshani, B.G.K, Kumara, M.A.M.S and Udamulla, K.M.L.A, 2020. “Stabilization of fine-grained soil using fly ash and lime to use as a subgrade and embankment soil material in road construction in Sri Lanka”. 11th International Conference on Sustainable Built Environment, 10th to 12th December, Sri Lanka.
30. Eriyagama, N.; Smakhtin, V.; Udamulla, L. 2021. Sustainable surface water storage development pathways and acceptable limits for river basins. Journal of Water 13 (5) 645. (https://www.mdpi.com/journal/water)
31. Samroos, Y.B.M and Udamulla, K.M.L.A, 2021. Use of crushed concrete aggregate waste in stabilization of clayey soils for subbase pavement construction and embankment material. 8th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development, pp 36- 42, 07th October, Faculty of Engineering, University of Ruhuna, Sri Lanka
32. Yathusan, K and Udamulla, K.M.L.A, 2021. The use of compacted tropical clay treated with rice husk ash as a suitable hydraulic barrier material in waste containment applications 8th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development, pp 43-47, 07th October, Faculty of Engineering, University of Ruhuna, Sri Lanka
33. Cadir, B and Udamulla, L, 2021. The use of fly ash stabilized sand mixtures as a capping material in landfills in Sri Lanka, 8th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development, pp 204-208, 07th October, Faculty of Engineering, University of Ruhuna, Sri Lanka
34. Munaweera, W.S.N and Udamulla, L, 2021. The influence of coconut fibres on the properties of interlocking concrete paving blocks, 8th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development, pp 209-213, 07th October, Faculty of Engineering, University of Ruhuna, Sri Lanka
35. Tennakoon, C and Udamulla, K.M.L.A, (2021). Geotechnical engineering properties of peat, stabilized with a combination of fly ash and waste glass powder. Proceedings of the 12th International Conference on Structural Engineering and Construction Management 2021, Kandy, Sri Lanka, 17-19 December 2021.
36. Eriyagama, N.; Smakhtin, V.; Udamulla, L., 2022. Sustainable Surface Water Storage Development: Measuring Economic Benefits and Ecological and Social Impacts of Reservoir System Configurations. Water, 14, 307. https://doi.org/ 10.3390/w14030307
Abstracts:
1. Diyes, G.H.I, Udamulla, KM.L.A and Tantirimudalige, M.N. 2013. Use of Fly Ash in hot mix asphalt concrete, Annual Academic Sessions of the Open University of Sr Lanka, pp 58-62 , 27, 28 November
2. Erandi, N.G.N, Sakunthala, W.C, Udamulla, K.K.L.A, 2013. Use of Bottom Ash as fine aggregate in manufacturing concrete paving blocks .64th Annual sessions of Sri Lanka Association of the Advancement of Science. 02-06 December, 304/C
3. Diyes, G.H.I, Udamulla, K.M.L.A and Tantirimudalige, M.N, 2013. Applicability of use of fly ash in hot mix asphalt concrete 2013. 64th Annual sessions of Sri Lanka Association of the Advancement of Science. 02-06 December, 307/C
4. Diyes, G.H.I, Udamulla, K.M.L.A and Tantirimudalige, M.N, 2014. Applicability of use of fly ash in hot mix asphalt concrete. Journal of Engineering and Technology of the Open University of Sri Lanka, (02) 1: 17-26
5. Wanigaratne, D, Udamulla, L 2014. Potential uses of biosolids with admixtures as an embankment fill material, 70th Annual sessions of Sri Lanka Association of the Advancement of Science. December 01-05. paper 303/C
6. Costa, M.B.M, Dassanayake, D.D.T, Tantirimudalige, M.N, Udamulla, K.M.L.A and Ekneligoda, T.C, 2014. Use of waste coconut shells as substitute for coarse aggregate in light weight concrete mixes. Annual Academic Sessions of the Open University of Sri Lanka, pp 81-84 , November 27th , 28th , Nawala, Sri Lanka
7. Wijewardana, M.A.C.D, De Alwis, A.D.E, Lakmini, S.A.D and Udamulla, K.M.L.A, 2015. Potential of Demolished Concrete as Material in Sub Base Applications. Annual Academic Sessions of the Open University of Sri Lanka, pp 103-106, November 19th and 20th , Sri Lanka
8. Krishanthika,R.K.S,Perera, L.A, Amarakoon, A.M.M.W, Udamulla, KM.L.A and Karunananda, P.A.K M.N, 2015. Investigation of chloride ion penetration resistance of silica fume mix concrete. 71ST Annual sessions of Sri Lanka Association of the Advancement of Science. 30 November-4 December, 311/C
9. Wijewardena, M.A.D.C, Alwis, A.D.De, Dilini Lakmini, A.A.D and Udamulla, KM.L.A , 2015. The potential of using recycled bricks as a material in sub base applications. 71ST Annual sessions of Sri Lanka Association of the Advancement of Science. 30 November-4 December, 310/C
10. Anjithan, K, Ratnayake, N, Athapattu, B.C.L and Udamulla, L.A, 2015. Sludge of water treatment works: Are disposal practices sustainable? 71ST Annual sessions of Sri Lanka Association of the Advancement of Science. 30 November-4 December, 314/C
11. Eriyagama, N, Smakthin, V and Udamulla, L, 2016. Defining sustainable limits to surface water storage development in river basins. 72nd Annual sessions of Sri Lanka Association of the Advancement of Science. 5-9 December, 302/C
12. Sitharika A.V.D.T and Udamulla, K.M.L.A, 2017. Stabilization of dispersive soil using fly ash, bottom ash and hydrated lime. International Forestry and Environment Symposium, Volume 22, 10th – 11th November, Waskaduwa, Sri Lanka.
13. . R.M.C.T.B Rathnayake, N.I.E De Siriwardana, H.N.N. Kumara, K.M.L.A Udamulla and P.A.K Karunananda, 2018. Feasibility study on use of recycled concrete aggregates for railway ballasts. 9th International Conference on Sustainable Built Environment. 13th -15th December, Kandy, Sri Lanka
14. Chathuranga R.A.I, Udamulla K.M.L.A, 2021. Use of M-Sand for Manufacturing Concrete Paving Blocks for Sri Lankan Roads. 25th International Forestry and Environment Symposium, Department of Forestry and Environmental Science, University of Sri Jayewardenepura, Sri Lanka
15. Priyadarshani R.M.S, Udamulla K.M.L.A, 2021. Stabilisation of Fine Grained Soil Using Fly Ash and Lime to Use as Embankment Material 25th International Forestry and Environment Symposium, Department of Forestry and Environmental Science, University of Sri Jayewardenepura, Sri Lanka.
Ongoing Research:
Research Supervisions:
Supervised undergrduate projects
1. Solution for Bioslids Disposal of Biyagama Export Processing Zone by developing an Embankment Fill Material to construction industry
2. Design of a foundation for the bridge abutment for deep alluvial terrain at Gangei Estuary
3. Applicability of use of fly ash in hot mix asphalt concrete
4. Use of Bottom Ash as fine aggregate in manufacturing concrete paving blocks
5. Use of coconut shells as substitute for coarse aggregate in light weight concrete mixes
6. Investigation of Chloride ion penetration resistance and plastic shrinkage cracking of fly ash blended concrete
7. The potential of using recycled bricks and demolished concrete as materials in sub base applications
8. Investigation of chloride ion penetration resistance and shrinkage cracks of mineral compound mix concrete
9. Use of Construction and Demolition Waste as Fine Aggregate in manufacturing concrete paving blocks
10. Use of Bottom Ash in replacement of river sand in making cement mortar
11. Investigation of the drinking quality of water collected by rain water harvesting with different types of roofing materials in Hambantota District in Sri Lanka
12. Waste water purification using locally available plants
13. An experimental and analytical study of the critical properties of pressed/ stabilized earth blocks
14. Geo polymer concrete paver blocks
15. Stabilization of dispersive soils using fly ash, bottom ash and lime
16. Use of offshore sand (without washing) for general purpose concrete
17. Investigating the relationship between Uni Axial Compressive strength of rock core specimen and the failure mode and the fracture pattern
18. An experimental study of the compressed clay paving blocks
19. Use of Bottom Ash in replacement of river sand in making cement mortar
20. Use of rice husk ash in partial relacement of cement in manufauring cement concrete blocks.
21. Use of M-Sand as fine aggregate in manufacturing concrete paving blocks.
22. Use of off shore sand as fine aggregate in making concrete paving blocks
23. Use of bottom ash as a light weight embankment fill material
24. Applicability of use of demolition waste as coarse aggregates in making hot mix asphalt concrete
25. Feasibility sty of use of recycled concrete agrregates for railway ballasts.
26. Suitability of water treatment plant sludge to replace flyash in auto aerated cement block manufacturing
Ph.D . Supervision
1. Investigating sustainable limits to surface water storage development (on going)