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Update from the CEN Technical Committee CEN/TC 189 Geosynthetics


CEN/TC 189 on Geosynthetics was established in 1989 in the light of the newly introduced Construction Products Directive (CPD). The aim of the Technical Committee is to develop terminology, testing and specification standards for a variety of construction products grouped together under the name ‘Geosynthetics’. In 1996 the European com-mission issued a mandate for developing European specifications standards, which was revised in 2007 due to the extending number of European countries. When the CPD was replaced by the CPR (Construction Products Regula-tion), the specification standards had to be revised to fulfil the new regulation.

Structure of CEN/TC 189

TC Management

The secretariat of CEN/TC 189 has been with the NBN (Belgium) since its establishment in 1989. Daniele Cazzuffi (Italy) started his first term as chairman in 2012, and has recently been confirmed as chairman for another three years starting in 2018. Karin Eufinger (Belgium) started as TC secretary in 2015.

Daniele Cazzuffi (Chairman CEN/TC 189) & Karin Eufinger (Secretary CEN/TC 189)

Working Groups

CEN/TC 189 has 6 working groups, which were all established during the founding meeting of the TC.

Working Group 1: Geotextiles and Geotextile-Related Poducts – General and Specific Requirements
Working Group 2: Terminology, Identification, Sampling and Classification
Working Group 3: Mechanical Testing
Working Group 4: Hydraulic Testing
Working Group 5: Durability
Working Group 6: Geosynthetic Barriers – General and Specific Requirements

Working groups 1 and 6 develop specification standards for Geotextiles and geosynthetic barriers. They are sup-ported by working groups 2 through 5, which develop the general standards for terminology (including identification, sampling and classification), testing and evaluation of durability.

Participation and Meetings

All CEN members may register participants to the technical committee, but the more active countries include Austria, Belgium, Czeck Republic, Denmark, Estonia, Finland, France, Germany, Greece, Italy, Latvia, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Slovak Republic, Spain, Sweden, Switzerland, Turkey, United Kingdom.

Also the European associations EDANA, ESWA and EuBa participate as observers.

Plenary meetings of CEN TC 189 take place once a year: the last meetings were in Istanbul in 2015, in Tallinn in 2016 and in Geneva in 2017, while the next meetings will be in Berlin in June 2018.

Cooperation with other Standardization Technical Bodies

CEN/TC 189 works closely together with ISO/TC 221 on Geosynthetics to ensure that the work program is aligned to international developments.

CEN/TC 189 also follows up the work program of other CEN technical committees on the one hand to be informed about developments in related technical areas and on the other hand to inform these technical areas of the develop-ments in CEN/TC 189. In order to facilitate this process, official liaisons to the following committees have been established:

  • CEN/TC 227 Road materials
  • CEN/TC 250/SC7 Eurocode 7 – Geotechnical design
  • CEN/TC 254 Flexible sheets for waterproofing
  • CEN/TC 288 Execution of special geotechnical works
  • CEN/TC 350 Sustainability of construction works
  • CEN/TC 351 Construction Products – Assessment of release of dangerous substances
  • CEN/TC 396 Earthworks

Committees CEN/TC 350 and CEN/TC 351 have a special role in this context. They develop horizontal standards for construction products, which then have to be used as basis for developing product specific standards for evaluating the sustainability of construction works and the assessment of the release of dangerous substances, respectively.

Work Program

The work of CEN/TC 189 is developed in the different working groups.

Working Group 1: Geotextiles and Geotextile-Related Products – General and Specific Requirements

Convenor CEN/TC 189 WG1: Philippe Delmas, France

Working group 1 develops specification standards for geotextiles and geotextile related products. Its core activities are related to the maintenance of the existing standards for CE marking and to develop new standards to ensure that novel materials or applications can be covered.

In March 2017 a series of revised standards was approved for citation in the official journal of the EU, providing not only a technical update but also an update to the new requirements and procedures under the CPR. This series of standards covers the following applications:

  • Drainage systems (EN 13252:2016)
  • Construction of reservoirs and dams (EN 13254:2016)
  • Construction of railways (EN 13250:2016)
  • Earthworks, foundations and retaining structures (EN 13251:2016)
  • Construction of tunnels and underground structures (EN 13256:2016)
  • Solid waste disposals (EN 13257:2016)
  • Liquid waste containment projects (EN 13265:2016)
  • Construction of roads and other trafficked areas (excluding railways and asphalt inclusion) (EN 13249:2016)
  • Construction of canals (EN 13255:2016)
  • Erosion control works (coastal protection, bank revetments) (EN 13253:2016)

The application standard for use in pavements and asphalt overlays (EN 15381:2008) is currently under revision, and it expected to be finalized in 2020.

Additionally, a new application standard is being developed for surface erosion control on slopes and banks (prEN 17097). This standard is currently being prepared for CEN Formal Vote, which is anticipated for 2018.

Working Group 2: Terminology, Identification, Sampling and Classification

Convenor CEN/TC 189 WG 2: Erol Güler, Turkey

The task of working group 2 is to develop on the one hand the standards for geosynthetics terminology, identification and classification, and on the other hand to harmonize sampling towards testing. Working group two has to work closely with the two product working groups (1 and 6) and also working groups 3, 4 and 5 which develop the test methods.

Given the strong cooperation with ISO/TC 221, working group 2 has to ensure that the standards developed are also well aligned with the developments in ISO, which is why most projects are developed as EN ISO standards. This process is facilitated by the fact that Erol Güler is also convenor of the corresponding working group 2 under ISO/TC 221.

Working Group 3: Mechanical Testing

Convenor CEN/TC 189 WG 3: Andrew Leech, United Kingdom

Working group 3 develops standards for mechanical testing. On the one hand these are implemented in the product specification standards developed in working group 1 and 6. On the other hand they are also necessary for the standards for durability testing, which are developed in working group 5. For this reason it is important that working group 3 works in close cooperation with these three working groups. There is also a close cooperation with the respective working group in ISO/TC 221, chaired by Daniele Cazzuffi (Italy), with a larger percentage of the standards being developed together.

Working Group 4: Hydraulic Testing

Working group 4 develops test methods for evaluating the permeability or flow properties of water and other liquids through or over geosyntetics. These test methods are important for the product specifications of working group 1 and 6, but also link to the durability testing developed in working group 5. As for working group 3 it is also important for working group 4 to work in close cooperation with these three working groups and also on international level with the respective working group in ISO/TC 221. As in working group 2 this is facilitated by Veronique Heili also being the convenor of this working group.

Convenor CEN/TC 189 WG 4: Veronique Heili, France

Working Group 5: Durability

The scope of working group 5 is to develop methods for assessing the durability of geosyn-thetic products. In the framework of the CPR and given the life time of projects where geo-synthetic products are being implemented, life times of up to 100 years can be required. It is therefore important to evaluations methods for assessing the life time of products for 25, 50 and 100 years. The exception are certain short term applications for asphalt reinforce-ment, where sometimes only temporary constructions are made.

Since durability needs to be evaluated according to the materials the geosynthetics are made of and the (soil) environment they are exposed to a large variety of different test and evaluation methods is required. Most of these test methods are primarily important for the EU market, which is why the WG 5 standards are also mostly purely European standards. Nevertheless, also working group 5 follows the activities of its respective ISO/TC 221 coun-terpart, chaired by Sam Allen (USA).

Convenor CEN/TC 189 WG 5: Jan Retzlaff, Germany

Working Group 6: Geosynthetic Barriers – General and Specific Requirements

Working group 6 develops specification standards for geosynthetic barrier layer products. Its core activities are related to the maintenance of the existing standards for CE marking and to develop new standards to ensure that novel materials or applications can be covered.

Working group 6 is finalizing the revision of its product specification standards, which cover the following applications:

  • Construction of reservoirs and dams (EN 13361:2017)
  • Construction of canals (EN 13362:2017)
  • Construction of tunnels and associated underground structures (EN 13491:2017)
  • Construction of liquid waste disposal sites, transfer stations or secondary containment (EN 13492:2018)
  • Construction of solid waste storage and disposal sites (EN 13493:2018)
  • Transportation infrastructure (EN 15382:2018)
Convenor CEN/TC 189 WG 6: Kent von Maubeuge, Germany

In parallel two new standards have been developed:

  • Construction of storage lagoons, secondary containment (above and below ground) and other containment appli-cations for chemicals, polluted water and produced liquids (EN 16993:2018)
  • Construction of underground structures (other than tunnels and associated structures) (EN 16994:2017)

All standards will be published towards the end of 2017/ beginning of 2018.

Reported by

Daniele Cazzuffi (Chairman of CEN TC 189 and IGS Past President) and Karin Eufinger (Secretary of CEN TC 189)


Yoshihisa Miyata


Dr. Yoshihisa Miyata is a Professor at the Department of Civil Engineering, National Defense Academy of Japan. He received his doctoral degree from Kyushu University in 1999. Dr. Miyata specializes in soil reinforcement technology and physical and numerical modeling of geostructures. He has authored or co-authored more than 260 papers in referred journals and conference proceedings and more than 130 technical articles. 

Dr. Miyata is the vice chair of the Japan chapter of IGS. He is also vice-chair of the Technical Committee on Soil Reinforcement in IGS and a board member of Geosynthetics International. As an organizing or scientific committee member, he has contributed to the success of international and regional geotechnical engineering and geosynthetics conferences. Dr. Miyata has received many awards and accolades, including the IGS award twice (2010 and 2023) and the Best Paper awards of ICE Geotechnical Engineering. (2017), Geosynthetic International (2015), Soils and Foundations (2013), Canadian Geotechnical Journal (2008) etc. He gave the 1st Bathurst lecture during the 12th ICG held at Roma in 2023. Dr. Miyata has much experience in geosynthetics. He has strong potential to contribute to the development of IGS.

Please see his detailed information:

Huabei Liu


Dr. Huabei Liu is an engineering professor at Huazhong University of Science and Technology (HUST) with 25 years of experience in geosynthetic applications. Prior to joining HUST, he was granted tenure as an associate professor at the City University of New York in Dec. 2013. His research focuses on the long-term and dynamic responses of GRS structures, which has been materialized as more than 80 refereed journal papers, and has promoted the applications of GRS structures in earthquake-active areas and advanced the use of locally-available fill materials for GRS applications.

Dr. Liu has been an active member of IGS since 2009. Currently he is an IGS Council Member, the Secretary for the Chinese Chapter, an executive board member of China Technological Association of Geosynthetics, and a member of ISSMGE TC 218 “Reinforced fill materials”. He also serves on the editorial boards of the Canadian Geotechnical Journal, Computers and Geotechnics, Earthquake Engineering and Structural Dynamics, and Transportation Infrastructure Geotechnology.

Dr. Liu is looking forward to better serving the community. He is particularly interested in educating younger generations on geosynthetics, and promoting GRS applications in extreme environments.

G L Sivakumar Babu


G L Sivakumar Babu is an active researcher and academic in geosynthetics and contributed significantly. He is the President of Indian Chapter of International Geosynthetics Society. He served as the President of Indian Geotechnical Society during 2017-2020 and was the Chairman of International Technical Committee (TC-302) on Forensic Geotechnical Engineering (FGE) of International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE) during 2013-2021. He is a Fellow of ASCE and also served as Governor, ASCE, Region 10 during 2014-2020.

He completed Ph.D.(Geotechnical Engineering) in 1991 from Indian Institute of Science, Bangalore, India, after Masters Degree (Soil Mechanics Foundation Engg.) in 1987 from Anna University, Madras and B.Tech. (Civil Engineering) in 1983 from Sri Venkateswara University, Tirupati. He worked as Humboldt Fellow in Germany during June 1999- July 2000 and as Visiting Scholar, Purdue University, Lafayette, USA during 2/95 – 2/96.

He guided 28 (23 Phds and 5 MS) research degrees and guiding 4 students for PhD. He wrote a book on soil reinforcement and geosynthetics, edited eight books and proceedings and has several publications (International and national Journals -200, International and national conf. more than 200, Total over 400). He received several awards such as John Booker award from IACMAG, Humboldt fellowship from Germany, DST Boyscast Fellowship, and a few awards for the best papers from Indian Geotechnical Society and American Society of Civil Engineers.

Dylan Armour


I believe fundamentally in the role that geosynthetics play in our future. For many countries, traditional methods of construction are often too resource-intensive and costly to apply throughout all levels of their society. Geosynthetics are an equalizing force in sustainable global development.

My career has given me the opportunity to work holistically in many roles and sectors, across a very broad range of stakeholders. As principal position as head of manufacturing in Canada, US and Europe, I have been exposed to a broad range of industry best practices and policy environments. My international business development and project management experience has provided me the opportunity to develop relationships with people around the world.

Finally, my current role as Director of Sustainability and Innovation is the culmination of this journey, which began with my post-graduate specialization in anthropology and sustainable development. I work to develop products, systems, and corporate strategy based on sustainable business practices.

I believe our industry sits at the centre of many of the most pressing conversations facing the world, and I’d be honoured to serve as an elected member of the IGS.

Fernando H. M. Portelinha


Fernando H. M. Portelinha holds a PhD in Geotechnical Engineering from the University of Sao Paulo (Brazil) and has post-doctoral experience from the University of Texas in Austin (USA). Prof. Portelinha has been a member of the IGS since 2008. In 2018, he was honored with the Young IGS Member Award for his contributions to the Brazilian IGS Chapter and his research with geosynthetics. Currently, Prof. Portelinha serves as a professor of Geotechnical Engineering at the Federal University of Sao Carlos (Brazil), where he has been passionately researching and teaching geosynthetics disciplines for over 10 years. In 2012, he created the Laboratory of Geotechnics and Geosynthetics at the Federal University of Sao Carlos to contribute to the development of geosynthetics in Brazil.

Prof. Portelinha is also a member of the Editorial Board of the Geotextiles and Geomembranes Journal and is involved in the TC-Reinforcement and TC-Barriers committees for the IGS. He has contributed to the Brazilian IGS chapter by delivering courses, organizing conferences, and currently serving as secretary of the Geosynthetics Committee in the Brazilian Society of Soil Mechanics and Geotechnical Engineering.

Expressing his enthusiasm, Prof. Portelinha is honored to be a candidate and is eager to contribute to IGS initiatives by serving on the IGS council.

Francisco Pizarro


For more than a year as an IGS Council Member and Chair of the Pan American Activities Committee (PAAC), I’ve been able to enhance the development of our chapters across the region through the implementation of the IGS’s core programs. In addition, I have been involved in developing synergies between chapters and organizations, recruiting new lecturers for activities, helping to organize GeoAmericas 2024 and currently assisting a regional chapter to apply to host GeoAmericas 2028. Aside from this, there is still a lot to do. 

My commitment lies with all our chapters in the region to increase the widespread use of geosynthetics throughout the infrastructure and engineering industries.

Gary Ng

(Hong Kong)

I started G and E back in June 1984 in Hong Kong. It was a small contractor until the introduction of Amoco geotextile in 1987. From this point, I kicked off my geosynthetics journey and never looked back, specializing in its application, design, distribution and installation. 40 years later, I recognize the significance of educating the younger generation as a cornerstone of advancing geosynthetics. Being a council member offers me a stronger mandate to provide a helping hand.

I also take a strong view on sustainable construction, in which geosynthetics play an increasingly vital role. Its versatility was presented in my paper at GeoAsia 7 in Taipei, and I am proud to continue this excellency.

Having worked for more than a decade across Southeast Asia and China, I see the advantage of exchanging dialogue and sharing thoughts and technology from this region. Effective liaising with the IGS can be expected with closer geography, better mastering of construction mentality, and a better understanding of customs and culture.

I look forward to the opportunity to serve the IGS family with greater dedication, transitioning from being an ordinary member since 2009, after which time one becomes wiser but still has the energy to make meaningful contributions.

Giulia Lugli


Giulia Lugli, P.E., MBA, is a professional structural engineer with experience in design and project management of civil, and geotechnical structures for the geo-environmental and transportation sectors, especially, but not limited to, reinforced soil structures.

She has served in the Geosynthetic Industry for the past 10 years and is currently Head of the Geosynthetics Business Development team and leads the Vertical Walls division of the Maccaferri Corporate GSY Unit, along with focus on R&D with an eye on digitally enabled and sustainable solutions.

Her daily activities include experience with a broad portfolio of geosynthetics products and solutions for applications as reinforced fill structures and soil stabilization, erosion control, drainage works, coastal protection and basal reinforcement.

She is a member of AGI, IGS and ISSMGE. She has served on the ISSMGE Technical Committee on Reinforced Fill Structures TC218 since 2018: from 2018 to 2020 as Secretary, and from 2018 to date as Chairman.

She has served as Guest-Editor for recognized Journals in the field and authored or co-authored several technical publications.

As potential IGS Council member she would support the organization in any activity with dedication, facilitating the know-how dissemination, especially in the field of reinforcement and drainage.


Ioannis Markou


Ioannis Markou is a Professor at the Department of Civil Engineering of Democritus University of Thrace (DUTh), Greece, and the Director of the Soil Mechanics and Foundation Engineering Laboratory at DUTh. He is currently the President (2022 – 2025) of the IGS Greece chapter and has also served as its Vice-President (2019 – 2022), a Council Member (2016 – 2019) and is a founding member of the chapter. His candidacy for IGS Council Member has the strong support of the IGS Greece Council. 

Dr. Markou is an Editorial Board Member and Lead Guest Editor for the Special Issue on “Soil–Geosynthetic Interaction” of the International Journal of Geosynthetics and Ground Engineering (Q1, IF: 2.9). He is a member of the ISSMGE and serves as member of the TC211 of this society. He has also been a member of the organizing and/or scientific committees of a number of International and National Conferences.

Dr. Markou has 35 years of research experience in “Soil/Geosynthetic Interaction” and “Soil Reinforcement with Fibers”. As a result, he has authored/co-authored one book chapter and several scientific papers published in International Journals and Conference Proceedings. Having long-term experience in geosynthetic engineering research and teaching and in IGS Greece activities, Dr. Markou wishes to play a more active role in the IGS, contributing to the achievement of its goals.

Online profile:

Wang Deqi


Mr. Wang Deqi is the inventor of anti-UV weed mat in China, the  Deputy Director of the Innovation Committee of the China Agricultural Plastics Society under the supervision of the Ministry of Agriculture, and a member of the International Association of Geomaterials. Previously, Mr. Wang served as the Workstation Director of the National Industrial Fabric Quality Supervision and Inspection Center. Mr. Wang led his team to successfully upgrade the “anti-aging” geotextile to the professional “anti exposure” stage, especially the weed mat (100-300g woven geotextile), with an exposed service life of up to 10-15 years, the world’s highest level.

Today, I am applying to join the IGS Council in order to participate in academic exchanges, technology promotion, and other related work, together with promoting the development and progress of international geotextiles in the field of environmental protection, and fulfill the mission of IGS.

Ivan P. Damians


Dr. Ivan P. Damians is an Associate Researcher Professor at the International Centre for Numerical Methods in Engineering (CIMNE®). He serves as a Geotechnical Engineer responsible for Research and Development (R&D) of the VSoL System at VSL International Ltd, which is part of the Bouygues Construction Group. Additionally, he works as an Assistant Professor at the School of Civil Engineering (ETSECCPB) of the Universitat Politècnica de Catalunya·BarcelonaTech (UPC), teaching courses in Soil Mechanics, Geotechnical Engineering, Geotechnical Projects and Constructions, and Life-Cycle Analysis and Sustainability Assessment for both Bachelor’s and Master’s programs in Civil and Environmental Engineering.

Dr. Damians actively participates in various research projects funded by national and international programs, as well as industry-sponsored initiatives. He is a member of technical committees and professional societies including:

  • CTN-UNE 140/SC 7, developing standards like EN 1997-3 (Eurocode 7) and 104 (Geosynthetics)
  • TC218 Reinforced Fill Structures and TC307 Sustainability in Geotechnical Engineering of the ISSMGE
  • International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE) and the Sociedad Española de Mecánica de Suelos e Ingeniería Geotécnica (SEMSIG)
  • Current Secretary of TC-Soil Reinforcement at the IGS.

Dr. Damians is the author of several publications and an active reviewer of international journals in the sectors of soil reinforcement, geosynthetics, sustainability, numerical methods, and behavior of clays as a long-term insulation material for nuclear waste disposal facilities. Moreover, he supervises Bachelor’s, Master’s, and PhD theses in Geosynthetics at CIMNE/UPC·BarcelonaTech.

Links to online profile & publications:

Jabulile Msiza

(South Africa)

Over the past two years, I’ve had the honour of serving on the IGS Council alongside some brilliant fellow members whom I now regard as colleagues. Although all my activity has been rewarding, the following particularly standout – serving as vice chair of the Technical Committee on Barriers and Representing Africa and the Middle East as their Regional Activity Chair, particularly at a time GeoAfrica (Cairo) was held and the first named lecture series was announced.

I’m a Civil Engineer, Professionally registered, and specializing in Waste Engineering as a Consultant of the company Jones & Wagener Engineering and Environmental Consultants (J&W). I’m the Head of Department of a dynamic team of engineers, technologists and draughts persons servicing waste management facilities across South Africa and other African regions; I’m also the Chairman of the Board of Directors of J&W.

With over 18 years’ working experience, I’m passionate about design for environmental protection, particularly for waste management facilities, construction of barrier and capping systems, and promoting the understanding and appropriate use of geosynthetic materials. It is a humbling industry in that while many advancements have happened in the past few years, there’s still much to learn as installed systems are tested with time and various exposure conditions.

I’m a member of the Associations: South African Institute of Civil Engineers (SAICE), Consulting Engineers South Africa (CESA) Board Member, the South African Chapter of the IGS and the Institute of Waste Management of South Africa. I have been an elected council member of the International Geosynthetics Society (IGS) for the past four years and eager to continue serving in the future.

Jacek Kawalec


I am a chartered geotechnical expert with 30 years of engineering experience, including 22 years of research and teaching at Silesian University of Technology (SUoT) in Poland where I obtained my MSc. in Civil Engineering (1994) and PhD in Geotechnics (2000).

My IGS membership began in 2005 and my involvement in the society since then has been divided between national and international activities. In Poland, as President of the Polish Chapter, I organized an “Educate the Educators” course bringing together participants from three countries (Poland, Czech Republic and Slovakia). In addition, I had the honor of serving as Chairman and leader of the Scientific Committee of the very successful IGS event – the regional EUROGEO-7 Conference, held in Warsaw in 2022.

My involvement at the international level includes membership in the IGS Council (as an invited and co-opted member between 2014-2020, and as an elected member from 2020 to present). As Chair of TC-Stabilization, I organized the joint TC-S & TC-H workshop in Prague in 2019. Over the years I have also contributed to various IGS committees, including Educational, Corporate & Publication Committees. Currently, I am focused on a special IGS session at the Railways 2024 Conference.

I would like to declare my continuous commitment to the Society, and if elected, I hope to continue this mission for the next 2024-2028 Council term.

Kasia Ria Zamara

(United Kingdom)

Dr Katarzyna (Kasia) Ria Zamara is a founding member of the IGS Diversity Task Force (DTF). She was instrumental in organising the first DTF event at the Rome ICG 2023 with continued strong contribution to DTF activities. Kasia is also an active member of the IGS Sustainability Committee, and Vice Chair of the IGS UK chapter. She has supported IGS since joining the organisation in 2009.

Kasia is proactive and keen to table new ideas designed to open new lines of thought and encourage innovation. She is successful in her personal career and seeks to inject this same level of energy and influence into the Council.

To find out why I am worth your vote, look me up on LinkedIn.

Maria das Graças A. Gardoni


Dr. Maria das Graças A. Gardoni, is a Professor at the Federal University of Minas Gerais, Belo Horizonte, Brazil. She earned her PhD from the University of Brasilia with 1 year of research at École Polytechnique de Montréal, Montréal (Canada), and she completed a post-doctoral program at the Joseph Fourier University (UJF), Grenoble, France, and the National Research Institute of Science and Technology for the Environment and Agriculture (IRSTEA), Anthony, France, in 2011.

She has more than 30 years of experience in applied and laboratory research in geotechnical and geoenvironmental engineering and geosynthetics. She has conducted research mainly on filtration and drainage, durability, waterproofing, and geotextile confinement systems in mining, dams. Prof. Gardoni has acted as an expert in tailings dam accidents in Brazil, and in waterproofing systems for dam reservoirs. She teaches geosynthetics in geotechnical and geoenvironmental applications in Civil and Environmental Engineering undergraduate and graduate courses and has supervised several MSc and PhD research projects.

She is a member of the International Geosynthetics Society (IGS) Council (2022-2024), the IGS Education Committee and was awarded by IGS in 2004. She is President of IGS Brazil (2023-2025), as well as the coordinator of the Educate the Educators program. In 2019, she received the Inconfidência Commendation, a medal awarded by the state government of Minas Gerais.

Song-Hun Chong


Dear IGS Members,

I am very pleased to apply to be a Council Member nominee on behalf of the Korean Geosynthetics Society (KGSS, IGS Korea Chapter). My short biography is as follows:

Song-Hun Chong, Ph.D. is an associate professor in Civil Engineering at Sunchon National University. He earned his PhD degree from Georgia Tech. My research group addresses the scientific and engineering development of geotextiles, geomembranes, and related products to stabilize geostructures. These research projects have been funded by National funding agencies and industry.

Because of my passion and profession for geosynthetic research, I expect to establish successful collaborations with many researchers in this area. Thank you in advance for your consideration of my application.


Song-Hun Chong, PhD
International Affairs Managing director of KGSS
Associate Professor
Department of Civil Engineering, Sunchon National University

Timothy D. Stark

(United States of America)

Timothy D. Stark (USA) is a Civil Engineering Professor at the University of Illinois at Urbana-Champaign. Dr. Stark has been conducting research on geosynthetics for 30 years ( Dr. Stark is Technical Director of the Flexible Geomembrane Institute, an industry-sponsored research organization at UIUC investigating geosynthetics for containment and other applications (

Dr. Stark is also an Editorial Board Member of the two IGS journals. Dr. Stark has received a number of awards including: 2023 J.E. Jennings Award, South African Institution of Civil Engineering; 2023 Cross USA Lecturer, ASCE; 2019 George H. Norman Medal, ASCE; 2017 Best Paper Award in Performance of Constructed Facilities Journal (ASCE); 2016 Best Paper in Geosynthetics International Journal, IGS; 2013 & 1998 Thomas A. Middlebrooks Award, ASCE, and others.

After serving as vice-president of IGS-North America, Dr. Stark was elected to IGS Council in 2020. He was then elected Chair of the IGS Pan American Committee Chair and helped reinvigorate this Committee. He is now serving as Chair of the IGS Education Committee, which is developing a certification program for geosynthetic engineers, chairing a subcommittee that is re-evaluating the EtE Program, and serving on the IGS Committee developing a Geosynthetics Handbook.