Dr.(Mrs.) L. A. Udamulla

Senior Lecturer (G I)

Civil Engineering
Faculty of Engineering Technology
Contact:

CRC, Ground floor, Science and Technology building, Room No :E005

Office: 011-2881116, Ext: 616 Mobile: NULL

Email: lakshika0807@hotmail.com NULL


senior Lecturer

Area of Specification:

NULL

Research Intrests:

NULL

Affiliations:

AMIE (SL)

Programmes Coordination:

DTech (Civil Engineering), BTech (Civil Engineering)

Course Coordination:

CVX4446 – Construction Engineering and Materials , CVX4350 – Quantity Surveying

Awards:

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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 Lnka

 

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.  S.K.K.D.D Kodikara, E.H. Thenuka Kalhara and K.M.L.A U damulla. 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. W.M.K.W.S.R Kotandeniya, V.A.N Perera, M.S.T Priyadarshana and K.M.L.A U damulla. Unwashed offshore sand for general purpose concrete.   9th International Conference on Sustainable Built Environment. pp, 79-83.  13th -15th December,  Kandy, Sri Lanka

 

 

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, KM.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, KM.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

 

 

 

 

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.

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Ongoing presearh projects:

1. Use of M-Sand as fine aggregate in manufacturing concrete paving blocks.

2. Use of off shore sand as fine aggregate in making concrete paving blocks

3. Use of bottom ash as a light weight embankment fill material

4. Applicability of use of demolition waste as coarse aggregates in making hot mix asphalt concrete

5. Feasibility sty of use of recycled concrete agrregates for railway ballasts.

6. 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)

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