Profile image of Susanga Costa

Dr Susanga Costa



Senior Lecturer, Civil - Geotechnical Engineering


Faculty of Sci Eng & Built Env


School of Engineering


Geelong Waurn Ponds Campus

+61 3 522 73698


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Optimization of fly ash based soil stabilization using secondary admixtures for sustainable road construction

Rintu Renjith, Dilan Robert, Sujeeva Setunge, Warnakulasuriya Costa, Abbas Mohajerani

(2021), Vol. 294, Journal of Cleaner Production, Amsterdam, Netherlands, C1

journal article

Use of secondary additives in fly ash based soil stabilization for soft subgrades

H Karami, J Pooni, D Robert, S Costa, J Li, S Setunge

(2021), Vol. 29, pp. 1-20, Transportation geotechnics, Amsterdam, The Netherlands, C1

journal article

Construction of working platforms on expansive soils using recycled concrete and stabilizers: a case study

H Karami, D Robert, S Costa, F Tostovrsnik, B O’donnell, S Setunge

(2021), Vol. 94, pp. 19-30, ICSECM 2019 : Proceedings of the 10th International Conference on Structural Engineering and Construction Management, Kandy, Sri Lanka, E1


Mitigation of desiccation cracks in clay using fibre and enzyme

Y Xie, S Costa, L Zhou, H Kandra

(2020), Vol. 79, pp. 4429-4440, Bulletin of engineering geology and the environment, Cham, Switzerland, C1

journal article

Measuring soil strain using fibre optic sensors

S Costa, G Kahandawa, J Chen, J Xue

(2019), pp. 43-50, 8ICEG : Towards a sustainable geoenvironment : Proceedings of the 8th International Congress on Environmental Geotechnics 2018, Hangzhou, China, E1-1


Prediction of parallel clay cracks using neural networks - a feasibility study

Tanveer Choudhury, Warnakulasuriya Costa

(2019), pp. 214-244, GeoMEast : Proceedings of the 2nd GeoMEast International Congress and Exhibition on Sustainable Civil Infrastructures, Egypt 2018 –The Official International Congress of the Soil-Structure Interaction Group in Egypt (SSIGE), Egypt, E1-1


Theoretical analysis of desiccation crack spacing of a thin, long soil layer

S Costa, J Kodikara, S Barbour, D Fredlund

(2018), Vol. 13, pp. 39-49, Acta geotechnica, Cham, Switzerland, C1-1

journal article

Determination of J-integral for clay during desiccation

S Costa, W Htike, J Kodikara, J Xue

(2016), Vol. 3, pp. 372-378, Environmental geotechnics, London, Eng., C1-1

journal article

Salient factors controlling desiccation cracking of clay in laboratory experiments

S Costa, J Kodikara, B Shannon

(2013), Vol. 63, pp. 18-29, Geotechnique, C1-1

journal article

Desiccation cracking in clayey soils: mechanisms and modelling

J Kodikara, S Costa

(2013), pp. 21-32, Proceedings of the Advances in Multiphysical Testing of Soils and Shales International Workshop 2012, Lausanne, Switzerland, E1-1


J-integral as a useful fracture parameter for analysis of desiccation cracking in clayey soils

S Costa, J Kodikara, J Xue

(2013), pp. 377-381, ISSMGE TC 215: Proceedings of the International Symposium, Torino, Italy, 1-3 July 2013, Torino, Italy, E1-1


Evaluation of J integral for clay soils using a new ring test

S Costa, J Kodikara

(2012), Vol. 35, Geotechnical Testing Journal, C1-1

journal article

Numerical modelling of desiccation cracking

A Amarasiri, J Kodikara, S Costa

(2011), Vol. 35, pp. 82-96, International Journal for Numerical and Analytical Methods in Geomechanics, C1

journal article

Determination of cohesive properties for mode I fracture from compacted clay beams

A Amarasiri, S Costa, J Kodikara

(2011), Vol. 48, pp. 1163-1173, Canadian Geotechnical Journal, C1

journal article

Shrinkage development during soil desiccation

S Costa, J Kodikara

(2010), pp. 433-436, Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils, E1-1


Numerical modelling of laboratory tests on desiccation cracking

A Amarasiri, J Kodikara, S Costa

(2009), pp. 302-310, Proceedings of the 1st International Symposium on Computational Geomechanics (ComGeo I), Juan-les-Pins, Cote d’Azur, France, E1-1


Modelling of desiccation crack development in clay soils

S Costa, J Kodikara, N Thusyanthan

(2008), Vol. 2, pp. 1099-1107, 12th International Conference on Computer Methods and Advances in Geomechanics 2008, Goa, India, E1-1


Study of desiccation crack evolution using image analysis

S Costa, J Kodikara, N Thusyanthan

(2008), pp. 159-164, Unsaturated Soils: Advances in Geo-Engineering - Proceedings of the 1st European Conference on Unsaturated Soils, E-UNSAT 2008, E1-1


Funded Projects at Deakin

Australian Competitive Grants

Transformation of Reclaimed Waste into Engineered Materials and Solutions (TREMS)

Prof Michael Polonsky, Dr Susanga Costa, Dr Mayuri Wijayasundara, Prof Bre-Anne Sainsbury, Prof Pubudu Pathirana

ARC Industrial Transformation Research Hubs

  • 2022: $30,000
  • 2021: $30,000

Industry and Other Funding

Transformation of Reclaimed Waste into Engineered Materials and Solutions (TREMS)

Prof Michael Polonsky, Dr Susanga Costa, Dr Mayuri Wijayasundara, Prof Bre-Anne Sainsbury, Prof Pubudu Pathirana

Tyre Stewardship Australia

  • 2022: $50,000


No completed student supervisions to report