Dr Ilhan Chang

Senior Lecturer in Geotechnical Engineering / SEIT Facilities Coordinator
School of Engineering and Information Technology


Room 105, Building 20, School of Engineering and IT
Australian Defence Force Academy (ADFA)

  • Dr. Ilhan Chang is a Senior Lecturer in geotechnical engineering at UNSW Canberra. Dr. Chang has a comprehensive expertise in Geotechnical Engineering, Multi-disciplinary (Bio-soil) studies, Sustainable and Environmental geotechnology, Ground improvement and Site characterization, and Industrial cooperation and commercialization. Before joining UNSW, Dr. Chang engaged his professional career as a Senior Researcher at Korea Institute of Civil Engineering and Building Technology (KICT). Currently, Dr. Chang is leading the E3 Geotechnical Engineering Research Group (E3GEO) at UNSW Canberra.


  • Education and Careers: Dr. Chang earned his Bachelor of Science (2000), Master of Engineering (2004), and Doctor of Philosophy (2010) degrees in Civil and Geotechnical Engineering at KAIST (Korea Advanced Institute of Science and Technology). Main topics of his M.S. and Ph.D. dissertations were "Soft Soil Evaluation using Elastic Waves" and "Soil Stabilization using Microbial Biopolymers", respectively. Dr. Chang started his academic career as a Research Assistant Professor at KAIST (2010~2011) and moveD to KICT (2012~2017) as a Senior Researcher to expand his experiences in R&D management and practical implementation. Meantime, Dr. Chang maintained his professional academic duty as an Invited Professor at KAIST (2014~2015) and Adjunct Associate Professor at UST (University of Science & Technology) (2016~2017), before joining UNSW.

  • E3GEO Research Group @UNSW Canberra Dr. Chang and his research group (E3GEO - Emerging, Environmental and Extreme Geotechnical Engineering) are mainly interested in Bio-soil studies with BiopolymersSustainable geotechnology, New material developmentSoil characterization and improvement, Micro-mechanics, and Multi-disciplinary topics including Hydraulic geotechnology, Soil erosion and Desertification, and Space / Planetary geotechnical engineering. Visit http://www.ilhanchang.com for details.


  • Research Projects (in progress)
  1. Rapid improvement of levee structures using biomaterials / Funded by MOLIT, Korea / Period: 2017.04 ~ 2020.12 (Total Budget: $330,000)
  2. Development of non-cement biopolymer-based rapid improvement method for vertical tunnel excavation / Funded by MOLIT, Korea / Period: 2017.05 ~ 2020.05 (Total Budget: $140,000)
  3. Development of a new excavation slurry using microbial biopolymers for machine tunneling / Funded by KEPCO, Korea / Period: 2018.11~2020.12 (Total Budget: $186,000)


  • Future High Degree Research (HDR) Students are welcome to join the E3GEO research group. Ph.D. scholarships are available for high achieving students (with high distinction in UG and Masters by Research) in Geotechnical Engineering, Bio-Soil Research, Sustainable / Environmental Geotechnology, or other Emerging Multi-disciplinary Research under my supervision.
  • Scholarships of $35,000 (AUD) are available for PhD students who achieved H1 / High Distinction in their UG program and/or have completed a Masters by Research. If you are interested, contact me at ilhan.chang@unsw.edu.au.

  • Teaching
    • Civil Engineering Materials (ZEIT2603)
    • Geotechnical Engineering (ZEIT3602)
    • Geosynthetics and Ground Improvement (ZEIT4004)
    • Foundation and Pavement Engineering (ZEIT4605) 



Journal articles

Kwon Y-M; Ham S-M; Kwon T-H; Cho G-C; Chang I, 2020, 'Surface-erosion behaviour of biopolymer-treated soils assessed by EFA', Géotechnique Letters, vol. 10, pp. 1 - 7, http://dx.doi.org/10.1680/jgele.19.00106

Lee S; Chung M; Park HM; Song KI; Chang I, 2019, 'Xanthan Gum Biopolymer as Soil-Stabilization Binder for Road Construction Using Local Soil in Sri Lanka', Journal of Materials in Civil Engineering, vol. 31, pp. 06019012 - 06019012, http://dx.doi.org/10.1061/(ASCE)MT.1943-5533.0002909

Chang I; Kwon YM; Im J; Cho GC, 2019, 'Soil consistency and interparticle characteristics of xanthan gum biopolymer–containing soils with pore-fluid variation', Canadian Geotechnical Journal, vol. 56, pp. 1206 - 1213, http://dx.doi.org/10.1139/cgj-2018-0254

Chang I; Lee M; Cho GC, 2019, 'Global CO2 emission-related geotechnical engineering hazards and the mission for sustainable geotechnical engineering', Energies, vol. 12, pp. 2567 - 2567, http://dx.doi.org/10.3390/en12132567

Tran ATP; Chang I; Cho G-C, 2019, 'Soil water retention and vegetation survivability improvement using microbial biopolymers in drylands', Geomechanics and Engineering, vol. 17, pp. 475 - 483, http://dx.doi.org/10.12989/gae.2019.17.5.475

Kwon Y-M; Chang I; Lee M; Cho G-C, 2019, 'Geotechnical engineering behavior of biopolymer-treated soft marine soil', Geomechanics and Engineering, vol. 17, pp. 453 - 464, http://dx.doi.org/10.12989/gae.2019.17.5.453

Lee S; Im J; Cho G-C; Chang I, 2019, 'Laboratory triaxial test behavior of xanthan gum biopolymer-treated sand', Geomechanics and Engineering, vol. 17, pp. 445 - 452, http://dx.doi.org/10.12989/gae.2019.17.5.445

Chang I; Cho GC, 2019, 'Shear strength behavior and parameters of microbial gellan gum-treated soils: from sand to clay', Acta Geotechnica, vol. 14, pp. 361 - 375, http://dx.doi.org/10.1007/s11440-018-0641-x

Do J; Heo O; Yoon YW; Chang I, 2018, 'Geotechnical design parameter evaluation using the alluvial plain characteristics in southeastern Iraq', Arabian Journal of Geosciences, vol. 11, http://dx.doi.org/10.1007/s12517-018-4019-z

Ham SM; Chang I; Noh DH; Kwon TH; Muhunthan B, 2018, 'Improvement of surface erosion resistance of sand by microbial biopolymer formation', Journal of Geotechnical and Geoenvironmental Engineering, vol. 144, http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0001900

Chang I; Im J; Chung MK; Cho GC, 2018, 'Bovine casein as a new soil strengthening binder from diary wastes', Construction and Building Materials, vol. 160, pp. 1 - 9, http://dx.doi.org/10.1016/j.conbuildmat.2017.11.009

Ryu BH; Wang CC; Chang I, 2018, 'Development and Geotechnical Engineering Properties of KLS-1 Lunar Simulant', Journal of Aerospace Engineering, vol. 31, http://dx.doi.org/10.1061/(ASCE)AS.1943-5525.0000798

Kim AR; Chang I; Cho GC; Shim SH, 2018, 'Strength and Dynamic Properties of Cement-Mixed Korean Marine Clays', KSCE Journal of Civil Engineering, vol. 22, pp. 1150 - 1161, http://dx.doi.org/10.1007/s12205-017-1686-3

Yasuhara H; Chang I, 2017, 'Preface: Special issue on “Innovative and eco-friendly soil treatment technologies”', Geomechanics and Engineering, vol. 12, pp. i

Lee S; Chang I; Chung MK; Kim Y; Kee J, 2017, 'Geotechnical shear behavior of xanthan gum biopolymer treated sand from direct shear testing', Geomechanics and Engineering, vol. 12, pp. 831 - 847, http://dx.doi.org/10.12989/gae.2017.12.5.831

Qureshi MU; Chang I; Al-Sadarani K, 2017, 'Strength and durability characteristics of biopolymer-treated desert sand', Geomechanics and Engineering, vol. 12, pp. 785 - 801, http://dx.doi.org/10.12989/gae.2017.12.5.785

Kwon YM; Im J; Chang I; Cho GC, 2017, 'ε-polylysine biopolymer for coagulation of clay suspensions', Geomechanics and Engineering, vol. 12, pp. 753 - 770, http://dx.doi.org/10.12989/gae.2017.12.5.753

Im J; Tran ATP; Chang I; Cho GC, 2017, 'Dynamic properties of gel-type biopolymer-treated sands evaluated by resonant column (RC) tests', Geomechanics and Engineering, vol. 12, pp. 815 - 830, http://dx.doi.org/10.12989/gae.2017.12.5.815

Do J; Heo SB; Yoon YW; Chang I, 2017, 'Evaluating the liquefaction potential of gravel soils with static experiments and steady state approaches', KSCE Journal of Civil Engineering, vol. 21, pp. 642 - 651, http://dx.doi.org/10.1007/s12205-016-1365-9

Chang I; Im J; Lee SW; Cho GC, 2017, 'Strength durability of gellan gum biopolymer-treated Korean sand with cyclic wetting and drying', Construction and Building Materials, vol. 143, pp. 210 - 221, http://dx.doi.org/10.1016/j.conbuildmat.2017.02.061

Mohd-Nordin MM; Song KI; Kim D; Chang I, 2016, 'Evolution of Joint Roughness Degradation from Cyclic Loading and Its Effect on the Elastic Wave Velocity', Rock Mechanics and Rock Engineering, vol. 49, pp. 3363 - 3370, http://dx.doi.org/10.1007/s00603-015-0879-7

Ham SM; Kwon TH; Chang I; Chung MK, 2016, 'Ultrasonic P-wave reflection monitoring of soil erosion for erosion function apparatus', Geotechnical Testing Journal, vol. 39, pp. 301 - 314, http://dx.doi.org/10.1520/GTJ20150040

Chang I; Im J; Cho GC, 2016, 'Introduction of microbial biopolymers in soil treatment for future environmentally-friendly and sustainable geotechnical engineering', Sustainability (Switzerland), vol. 8, http://dx.doi.org/10.3390/su8030251

Chang I; Im J; Cho GC, 2016, 'Geotechnical engineering behaviors of gellan gum biopolymer treated sand', Canadian Geotechnical Journal, vol. 53, pp. 1658 - 1670, http://dx.doi.org/10.1139/cgj-2015-0475

Chang I; Im J; Prasidhi AK; Cho GC, 2015, 'Effects of Xanthan gum biopolymer on soil strengthening', Construction and Building Materials, vol. 74, pp. 65 - 72, http://dx.doi.org/10.1016/j.conbuildmat.2014.10.026

Chang I; Prasidhi AK; Im J; Cho GC, 2015, 'Soil strengthening using thermo-gelation biopolymers', Construction and Building Materials, vol. 77, pp. 430 - 438, http://dx.doi.org/10.1016/j.conbuildmat.2014.12.116

Chang I; Prasidhi AK; Im J; Shin HD; Cho GC, 2015, 'Soil treatment using microbial biopolymers for anti-desertification purposes', Geoderma, vol. 253-254, pp. 39 - 47, http://dx.doi.org/10.1016/j.geoderma.2015.04.006

Chang I; Jeon M; Cho GC, 2015, 'Application of microbial biopolymers as an alternative construction binder for earth buildings in underdeveloped countries', International Journal of Polymer Science, vol. 2015, http://dx.doi.org/10.1155/2015/326745

Chang I; Cho GC, 2014, 'Geotechnical behavior of a beta-1,3/1,6-glucan biopolymer-treated residual soil', Geomechanics and Engineering, vol. 7, pp. 633 - 647, http://dx.doi.org/10.12989/gae.2014.7.6.633

Chang I; Cho GC, 2012, 'Strengthening of Korean residual soil with β-1,3/1,6-glucan biopolymer', Construction and Building Materials, vol. 30, pp. 30 - 35, http://dx.doi.org/10.1016/j.conbuildmat.2011.11.030

Chang I; Kwon TH; Cho GC, 2011, 'An experimental procedure for evaluating the consolidation state of marine clay deposits using shear wave velocity', Smart Structures and Systems, vol. 7, pp. 289 - 302, http://dx.doi.org/10.12989/sss.2011.7.4.289

Chang I; Cho G-C, 2010, 'A New Alternative for Estimation of Geotechnical Engineering Parameters in Reclaimed Clays by Using Shear Wave Velocity', GEOTECHNICAL TESTING JOURNAL, vol. 33, pp. 171 - 182, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000277912400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Chang I; Cho GC, 2010, 'A new alternative for estimation of geotechnical engineering parameters in reclaimed clays by using shear wave velocity', Geotechnical Testing Journal, vol. 33, http://dx.doi.org/10.1520/GTJ102360

Chang IH; Cho GC; Lee JG; Kim LH, 2006, 'Characterization of clay sedimentation using piezoelectric bender elements', Key Engineering Materials, vol. 321-323 II, pp. 1415 - 1420

Conference Papers

Chang I; Tran ATP; Cho GC, 2019, 'Introduction of biopolymer-based materials for ground hydraulic conductivity control', in Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art- Proceedings of the WTC 2019 ITA-AITES World Tunnel Congress, pp. 277 - 283, http://dx.doi.org/10.1201/9780429424441-29

Lee S; Im J; Cho GC; Chang I, 2019, 'Tri-axial shear behavior of xanthan gum biopolymer-treated sand', in Geotechnical Special Publication, pp. 179 - 186, http://dx.doi.org/10.1061/9780784482117.017

Tran ATP; Chang I; Im J; Cho GC, 2018, 'Upward Wetting Behavior of Unsaturated Xanthan Gum-Treated Sand', in Geotechnical Special Publication, pp. 146 - 154, http://dx.doi.org/10.1061/9780784481684.016

Tran TPA; Im J; Cho GC; Chang I, 2017, 'Soil-Water characteristics of xanthan gum biopolymer containing soils', in ICSMGE 2017 - 19th International Conference on Soil Mechanics and Geotechnical Engineering, pp. 1091 - 1094

Im J; Chang I; Cho GC, 2017, 'Small strain stiffness and elastic behavior of gellan treated soils with confinement', in Geotechnical Special Publication, Orlando, Florida USA, pp. 834 - 841, presented at Geotechnical Frontiers 2017, Orlando, Florida USA, 12 March 2017 - 15 March 2017, http://dx.doi.org/10.1061/9780784480472.089

Im J; Cho GC; Chang I, 2016, 'A New Soil Treatment Method Using Casein from Bovine Milk', in Geotechnical Special Publication, pp. 1 - 6, http://dx.doi.org/10.1061/9780784480120.001

Chang I; Im J; Cho GC, 2016, 'Soil-Hydraulic Conductivity Control via a Biopolymer Treatment-Induced Bio-Clogging Effect', in Geotechnical and Structural Engineering Congress 2016 - Proceedings of the Joint Geotechnical and Structural Engineering Congress 2016, pp. 1006 - 1015

Chang I; Im J; Cho GC, 2016, 'An Environmentally-Friendly Geotechnical Approach for Soil Erosion Reduction Using Microbial Biopolymers', in Geotechnical Special Publication, pp. 17 - 24, http://dx.doi.org/10.1061/9780784480120.003

Chang I; Im J; Cho GC, 2015, 'Soil particle composition effect on the strengthening behavior of biopolymer treatment', in Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014, pp. 1487 - 1490

Chang I; Shin Y; Cho GC, 2015, 'Optimum thickness decision of biopolymer treated soil for slope protection on the soil slope', in Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014, pp. 1643 - 1648

Chang I; Im J; Shin HD; Cho GC, 2015, 'Biochemical soil treatment for erosion control against desertification', in Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015, pp. 2767 - 2771

Ham SM; Kwon TH; Chang I, 2015, 'Preliminary study on P-wave monitoring of soil erosion in SRICOS-EFA method', in 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015: New Innovations and Sustainability, pp. 1757 - 1760, http://dx.doi.org/10.3208/jgssp.KOR-32

Chang I; Cho GC, 2014, 'Elastic wave behaviors of beta-glucan biopolymer-treated residual soil', in Geotechnical Special Publication, pp. 1567 - 1575, http://dx.doi.org/10.1061/9780784413272.153

Kim AR; Cho GC; Kwon TH; Chang IH, 2013, 'Practical reviews on CO2 sequestration in Korean sedimentary basins and geophysical responses of CO2-injected sediments', in 18th International Conference on Soil Mechanics and Geotechnical Engineering: Challenges and Innovations in Geotechnics, ICSMGE 2013, pp. 567 - 570

Chang I; Cho G-C; Santamarina JC, 2013, 'SOIL EROSION CONTROL AND VEGETATION STABILIZATION USING BIOGENIC BIOPOLYMERS', in Cui YJ; Emeriault F; Cuira F; Ghabezloo S; Pereira JM; Reboul M; Ravel H; Tang AM (eds.), PROCEEDINGS OF THE 5TH INTERNATIONAL YOUNG GEOTECHNICAL ENGINEERS' CONFERENCE (IYGEC 2013), IOS PRESS, Ecole Ponts ParisTech, Marne la Vallee, FRANCE, pp. 77 - 80, presented at 5th International Young Geotechnical Engineers' Conference (iYGEC), Ecole Ponts ParisTech, Marne la Vallee, FRANCE, 31 August 2013 - 01 September 2013, http://dx.doi.org/10.3233/978-1-61499-297-4-77

Kim A-R; Chang I; Cho G-C; Kang Y-I, 2011, 'Strain-dependent Dynamic Characteristics of Cement-treated Clay', in Chung CK; Kim HK; Lee JS; Jung YH; Kim DS (eds.), DEFORMATION CHARACTERISTICS OF GEOMATERIALS, PTS 1 AND 2, IOS PRESS, Seoul, SOUTH KOREA, pp. 779 - 784, presented at 5th International Symposium on Deformation Characteristics of Geomaterials (IS), Seoul, SOUTH KOREA, 01 September 2011 - 03 September 2011, http://dx.doi.org/10.3233/978-1-60750-822-9-779

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