Board of Directors

The ISAP Board of Directors governs the Society and is composed of elected Directors, Directors appointed by Patron members, Directors appointed by Association Members, and the immediate Past-Chair. The Board also consists of ex-officio members represented by the Chairs of the ISAP Technical Committees (TC). The Board appoints the Executive Committee with powers as it shall see fit, subject to regulation of the By-Laws. The Executive Committee members include four elected officials of the Board – Chair, Vice-Chair, Secretary, and Treasurer – plus the immediate Past-Chair and Executive Administrator. The schedule of appointments as of January 2017 is listed below.

Executive Committee Members


Jean-Pascal Planche
Western Research Institute

Jean-Pascal is the current Vice President of Transportation Technology for Western Research Institute in Laramie, Wyoming.  Before this, he was employed at Total Bitumen as a Technical Expert in charge of defining the technical strategy with the Research, Marketing and Refining directions in Paris France.  He has also the Chairman of the the French bitumen standardization group BNPé/P04/GE1, representing France standardization body at the European CEN/TC336/WG1 on bituminous binders.  Prior to that, he worked for Elf Asphalt in both Solaize France and Terre Haute, Indiana.  He received his ENSCMu at the Engineer School in Chemistry and his PhD in Macromolecular Chemistry Science at the University of Lyon, France.  He is author or coauthor of more than 70 papers and articles in various international scientific events such as AAPT, AMAP, TRB, PIARC, RILEM, ISAP, ACS, Petersen Asphalt Research Conference & P3 symposium, E&E congress, IRC…, and in journals such as Thermo Chimica Acta, Journal of Rheology, Materials and Structures, Fuel, Energy and Fuel, Nature. He is also the inventor or co-inventors of more than 20 international delivered patents, mainly in the Polymer Modified Asphalt field.  He is a Member of ISAP, RILEM, TRB and AAPT. In 2011 he was inducted into the AMAP Hall of Fame – Association of Modified Asphalt Producers (USA) for life time achievement in the field of the development of polymer modified asphalts.

Vice Chair

Gaylon Baumgardner
Paragon Technical Services

Gaylon L. Baumgardner is Senior Vice President, Ergon Asphalt and Emulsions, Inc., a subsidiary of Ergon, Inc. of Jackson, MS, with thirty (30) plus years of experience in the petroleum and petroleum-related products industry.  Baumgardner holds a BS in Chemistry from Henderson State University and a Ph.D. in Civil Engineering from Mississippi State University.

Prior to employment by Ergon, Inc. in 1988, Baumgardner served as Manager of Technical Development for Siplast, Inc., a producer of commercial modified bitumen roofing systems, formerly a division of Elf Aquitaine, currently owned by the ICOPAL group.  Under his direction, Paragon Technical Services, Inc., (PTSi), a division of Ergon Asphalt and Emulsions, Inc., is responsible for research and development services for Ergon Asphalt and Emulsions, Inc. and Ergon Armor, Inc. with primary focus in paving and related products, which include asphalt, polymer modified asphalt, asphalt emulsions, and polymer modified asphalt emulsions as well as specialty coatings.  He also oversees full-service third party testing and development capabilities offered by PTSi to the petroleum refining, roofing, waterproofing, protective coatings, specialty asphalts and asphalt paving industries.

Baumgardner is an active member of the Association of Asphalt Paving Technologists (AAPT), the Association of Modified Asphalt Producers (AMAP) (past president), the Canadian Technical Asphalt Association (CTAA) and the International Society for Asphalt Pavements (ISAP).  He presently serves on various task groups for ASTM International Committees D04 and D08. Gaylon has served as Chairman for the International Technical Committee of the Asphalt Emulsion Manufacturers Association (AEMA) and the organizing committee for the International Symposium of Asphalt Emulsion Technology (ISAET), and Chairman of the Asphalt Institute Technical Advisory Committee (TAC). He currently serves as Chairman of the Asphalt Institute Roofing Technical Advisory Committee (RTAC), and as Co-Chairman of Binder Expert Task Group. Gaylon serves on the board of directors of the  International Bitumen Emulsion Federation (IBEF), as a friend of the National Center for Asphalt Technology (NCAT) Applications Steering Committee, as a member of the Pacific Coast Conference on Asphalt Specifications (PCCAS), as a member and board member of the Southeastern Asphalt User/Producer Group (SEAUPG), and as an active member of the American Chemical Society (ACS) as well as other technical committees in the asphalt and petroleum products industries.

Past Chair

Gabriele Tebaldi
University of Parma

Gabriele Tebaldi graduated ad University of Parma in 1996 and got his PhD in Civil Engineering Construction of Road, Railway and Airport Program at University of Ancona (now Marche Polytechnic University) in 2000. He joined at University of Parma Road Materials Research group in 2000 and had the tenure track position in 2007. Dr. Tebaldi is Secretary of ISAP TC on Asphalt Pavement and Environment and serve as a Task Group leader on Rilem Committees on Testing and Characterization of Sustainable Innovative Bituminous Materials and Systems and Mechanisms of Cracking and Debonding in Asphalt and Composite Pavements. He is involved in the activities of TRB Committee on Pavement Maintenance and Sub-Committee on Interlayer Systems to Control Reflective Cracking. He served as reviewer for several scientific journals like International Journal Road Materials and Pavement Design, International Journal of Pavement Engineering, Materials and Structures, Journal of Materials in Civil Engineering; he was also Guest Editor of two Special Issue of International Journal Road Materials and Pavement Design. Dr. Tebaldi research interest are: recycling and re-use on road materials, advanced testing on bituminous materials, bituminous materials performances, cracking mechanics on asphalt mixes, reinforced pavement, stabilization of soils. He published several papers on peer review journals and international conferences on those topics. Dr. Tebaldi has scientific collaborations with University of Illinois, University of Minnesota, University of Florida, EMPA – Swiss Federal Laboratories for Material Testing and Research, IBDM – Road and Bridge Research Center and University of Stellenbosch.


Gerald (Gerry) Huber
Heritage Research Group

Gerry Huber is originally from Saskatchewan. Mr Huber obtained a Bachelor degree in Civil Engineering and worked at Saskatchewan Highways and Transportation for 10 years in construction supervision, project design and finally as bituminous engineer. He obtained a Master’s degree from the University of Texas specializing in asphalt mixture properties then joined the Asphalt Institute for five years where he helped advance mix design technology including changes to MS-2, the manual of “Mix Design Methods for Asphalt Concrete” and was involved in the Strategic Highway Research Program working on the technical coordination team responsible for developing Superpave.

Since 1992 he works for the Heritage Research Group, a private asphalt research office based in Indianapolis, Indiana. He has been actively involved in implementation activities of Superpave and other new asphalt technologies including Stone Matrix Asphalt, Porous Asphalt and hot mix asphalt warranties.




Executive Administrator


R. Michael (Mike) Anderson
International Society for Asphalt Pavements

R. Michael (Mike) Anderson was chosen to succeed Gene Skok as the Executive Administrator of ISAP in January 2014. Mike started his career in 1987 with the Kentucky Department of Highways as asphalt mix design engineer, following that assignment by working for HG Mays Corporation – an asphalt mix production/construction company. Since 1991 he has worked for the Asphalt Institute –  currently serving as the Director of Research and Laboratory Services.

In addition to ISAP, Mike is involved in several professional organizations with an interest in asphalt technology. He is a member of the Association of Asphalt Paving Technologists (AAPT) – serving as the Association’s President in 2009 and as Executive Director since July 2013. He is a member of the Association of Modified Asphalt Producers (AMAP), Asphalt Emulsion Manufacturers Association (AEMA), Canadian Technical Asphalt Association (CTAA), and ASTM International. Mike participates in several Transportation Research Board (TRB) Standing Committee as a “Friend”, and serves as co-Chair of the Asphalt Binder Expert Task Group (ETG) and liaison to the Asphalt Mixture ETG.

He is registered as a professional engineer in Kentucky.

Executive Administrator – Emeritus

Eugene Skok
Eugene Skok received a Bachelors, Masters and PhD in Civil Engineering at the University of Minnesota in 1957, 1959 and 1969, respectively. He has worked and taught in the areas of Pavement Design, Evaluation and Engineering Materials and as a researcher. He worked at the AASHO Road Test during the construction and analysis periods in 1958-1960. He then worked for the Asphalt Institute in College Park, Maryland.

From 1963 through 1971, while at the University of Minnesota he worked on various research projects including the research used for the current Minnesota Highway Department pavement design procedure. He also did research for U.S. Forest Service, NCHRP and the Minnesota Local Road Research Board in pavement design, analysis and quality control.

In 1972 he started teaching at St. Paul Technical College where he was Head of the Civil Technology Department. He also helped start a pavement consulting firm (Midwest Pavement Management) in 1980 which was bought out by Braun Intertec in 1987.
In 1988 he became the Principle Investigator for the North Central Regional Coordination Office of the Strategic Highway Research Program (SHRP). The North Central Region covers 13 states and 2 provinces. The Office was responsible for the setting up, evaluation and analysis of over 300 test sections in the region.

Since 1998 he has been a Research Associate and Adjunct Professor in the Civil Engineering Department back at the University of Minnesota. He has taught pavement and materials courses and worked on research projects including the work described in this presentation.

Dr. Skok is a Life Member of ASCE (President of the MN Section 1978-79), Association of Asphalt Paving Technologists (Secretary-Treasurer since 1969), International Society for Asphalt Pavements (Executive Administrator since 1996) MnAAPT, ASTM, TRB, MSES, Chi Epsilon. Tau Beta Pi and Plumb Bob. He was elected to the Asphalt Institute Roll of Honor in 1995.

New Candidates for 2018

James Grenfell
Australian Road Research Board

Dr Grenfell is a Senior Pavement Engineer at ARRB (Australian Road Research Board). Since joining the pavement team in February 2017, his work has focused on current Austroads projects looking at the improving knowledge of foamed bitumen stabilised pavements and the use of lightly cemented materials in pavement construction. Prior to this Dr Grenfell spent 13 years as a researcher at NTEC (Nottingham Transportation Engineering Centre) at the University of Nottingham in the UK. During this time he worked on and managed various projects related to pavement materials. These projects involved permanent deformation and fatigue properties of asphaltic materials, moisture damage in asphalt pavements, adhesion of bitumen to aggregate, warm mix asphalt technologies, the use of crumb rubber and recycled asphalt and alternative binders. His main research interests are the fundamentals of adhesion, moisture damage of asphaltic materials, recycling and the use of secondary materials.

Prior to working at NTEC James undertook a PhD in Metallurgy and Materials. The title of his PhD was The Effect of Macroalloying on the Microstructure and Mechanical Properties of γ-based Titanium Aluminides. This piece of work focused on the relationships between microstructure and mechanical properties, the application being the replacement of heavier steel parts in aero-engines.

Christiane Raab

Christiane Raab’s professional experience includes: Consulting Engineer at the Consulting Company Mann & Bernhardt, Darmstadt, Germany;  Senior scientist in the section road engineering/sealing components;  EMPA at Duebendorf, Switzerland

Group leader Road Materials and Pavements, EMPA Laboratory for Road Engineering/Sealing Components; Consultant for the Swiss Road Authority ASTRA, Bern, Switzerland and EMPA representative notification and certification for construction materials

Professional Activities:

Activities focus is on project management in connection with research and development assignments, damage investigation and consulting work, particularly in the field of mechanical behaviour and road design as well as administrative work.

Coordinator of the strategic priority field “Roads” Responsibility to ensure that the various activities and orders are dealt with uniformly at the project level and for overall knowledge management in this specialist area.

Key research fields:

Work associated with investigations into the interlayer bonding of asphalt surfaces, the investigation of thin layer behaviour in paving and the long-term behaviour of surfaces and the long term performance study and evaluation of asphalt pavement constructions. Further, material and test development work in such areas as foamed bitumen and model mobile load simulator. Work on binders, sealing materials and non-destructive testing, including research work in connection with infrared thermography and polymer-modified binders.

Author of comprehensive research and expert reports as well as nationally and internationally recognised articles in German and English for specialist journals. Speaker at national and international conferences (in German and English), see list of publication and talks)

Nader Tabatabaee
Sharif University of Technology

Nader Tabatabaee is a professor of Civil Engineering at Sharif University of Technology (SUT) in Tehran, Iran. He received his BS degree from the University of California at Berkeley and his MS and PhD degrees from The Pennsylvania State University. He joined SUT in 1991, where he teaches and conducts research on pavement materials and design and asphalt technology. He has published more than 80 peer-reviewed publications and conference papers in his field as well as many technical reports for various public and private agencies. He is a member of Transportation Research Board committee AFD40 on Full Scale Accelerated Pavement Testing and is a friend of AFK20, the standing committee on asphalt binders, and AFK40, the standing committee on surface requirements of asphalt mixtures. He is a member of the editorial board of the journal Road Materials and Pavement Design and is a reviewer for a number of other journals, including Materials and Structures, Construction and Building Materials, ASCE Journal of Materials in Civil Engineering, ASCE Transportation Engineering: Part B: Pavements, International Journal of Pavement Engineering, International Journal of Pavement Research and Technology, Materials and Design as well as for the Transportation Research Board. He serves or has served in recent years as a member of the scientific committees of ISAP 2018, RAR 2018, BCRRA 2017, EATA 2017, ISAP 2016, RILEM SIB 2015 and IRF EC8 2015. He is also a founding member of the Civil Engineering Congress in Iran and co-founder of the Middle East Society of Asphalt Technologists (MESAT). Dr. Tabatabaee served as chair of the Department of Civil Engineering at SUT from 1997-2001 and as Dean of Graduate Studies at SUT from 2001 to 2006. His areas of research interest include pavement instrumentation, pavement design and maintenance, asphalt technology and modified asphalt binders and mixtures.

Directors At-Large

Y. Richard KimY. Richard Kim
North Carolina State University
Dr. Y. Richard Kim is a Professor in the Department of Civil, Construction, and Environmental Engineering at North Carolina State University. Professor Kim’s specialty areas include: characterization and performance modeling of asphaltic materials and asphalt pavement systems; condition assessment of asphalt pavements; pavement evaluation by accelerated pavement testing; and pavement preservation. Professor Kim is a Fellow member of the ASCE and a member of several other professional organizations, including the Transportation Research Board (TRB), AAPT, American Society of Testing and Materials (ASTM), the Korean Scientists and Engineers Association (KSEA), and the International Society of Asphalt Pavements (ISAP). He is the founder and first president of the Asian-American Pavement Engineers Association. He is also a member of the FHWA Asphalt Mixture and Construction Expert Task Group.

Dr. Kim has published approximately 190 papers in national and international technical journals and proceedings. He is the editor of the ASCE book entitled Modeling of Asphalt Concrete. Professor Kim is currently an Associate Editor for the International Journal of Pavement Engineering and a member of the editorial boards of three other international journals. He is also a member of the Federal Highway Administration Asphalt Mixture and Construction Expert Task Group and Pavement Preservation Expert Task Group. Among numerous awards, he is the recipient of The Alcoa Foundation Engineering Research Achievement Award in 1998 and a recipient of the Walter J. Emmons Best Paper Award by the Association of Asphalt Paving Technologists in 1997, 2006, and 2009.

Luis Guillermo Loria-SalazarLuis Loría Salazar

LANAMME University of Costa Rica
Costa Rica


Herve di BenedettoHervé Di Benedetto

University of Lyon, ENTPE, LGCB & LTDS (CNRS 5513)
Professor Hervé Di Benedetto received his Diploma of Civil Engineer from the “Ecole Nationale des TPE” (ENTPE) in 1979. He is Doctor of Engineering in Soil Mechanics (1981) and “Docteur ès-Sciences” (1987), both from the University of Grenoble, France. Currently he is Professor at ENTPE, University of Lyon. He is also, since 2011, visiting Professor at University of Quebec (ETS).Prof. Di Benedetto’s research focuses on the study of mechanical, thermo-mechanical and structural behaviour of geomaterials, including experimental and modelling aspects. He is working in the fields of road engineering and soils mechanics.He has been the supervisor of more than 45 PhD students and of a large volume of research works in collaboration with various private and public partners. He is author of more than 200 publications.Prof. Di Benedetto has been frequently Invited or Keynote Speaker for international conferences. He Chaired Technical Committe 101 “Laboratory testing” of the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE) from 2009 to 2013. He is on the Board of Directors of ISAP. He is member of AAPT (Association of Asphalt Paving Technologist) Board, as international representative, and co-founder and member of the Steering Committee of EATA (European Asphalt Technology Association). He is a Fellow of RILEM (International Union of Laboratories and Experts in Construction Materials, Systems and Structures) where he animated and animates different working groups. He belongs to the Board of 4 journals and is Editor-in-Chief of the International Journal “Road Materials and Pavement Design”(

Shigeru Shimeno
Nippon Expressway Research Institute Company Limited

Shigeru Shimeno received a Bachelor in1978 and Doctor degree in1997 at Nihon University in Japan, and Master degree in1991 at Georgia Institute of Technology in USA. He began his carrier at Japan Highway Public Corporation in 1978. He has worked at Expressway Research Institute as a manager of pavement division since 1993 and been in current position since 2005. His research interests are surface characteristics, pavement materials, and pavement management system. He has authored or co-authored many published papers and research reports, and is active in many scientific committees. He is a member of Pavement Engineering Committee at Japan Society of Civil Engineers,  Pavement Committee at Japan Road Association, Technical Committee D1 (Management of Road Infrastructure Assets) at PIARC (World Road Association) and so on.

Tom Scarpas
Delft University



Alan Carter
École de technologie supérieure



Jorge Soares
Universidade Federal do Ceará


Tien Fang (TF) Fwa
National University of Singapore
Dr. T. F. Fwa is a Professor in the Department of Civil & Environmental Engineering, National University of Singapore (NUS).  He received his BEng from the then University of Singapore, MEng from the University of Waterloo, Canada, and PhD from Purdue University, USA.

Dr. Fwa’s research covers various aspects of pavement engineering, with emphasis on evaluation, maintenance and management of road and airfield pavement systems.  He has published more than 200 technical papers in leading international journals.  He has received a number of awards for his academic and research contributions. Among the awards he received are the 1992 Arthur M. Wellington Prize by the American Society of  Civil  Engineers;  the 1995 Katahira Award  by  the  Road  Engineering  Association  of  Asia  and Australasia; the 2000 Engineering Achievement Award by the Institution of Engineers, Singapore; the 2005 Frank M. Masters Transportation Engineering Award by the American Society of Civil Engineers, USA; the 2009 MAIREPAV-6 Best Paper Award by the Sixth International Conference on Maintenance and Rehabilitation of Pavements, Torino, Italy; the 2009 Alfred Noble Prize by the American Society of Civil Engineers, USA; the 2013 Best Paper Award by the 8th International Conference on Road and Airfield Paper Technology, Taipei; and the 2014 Minister’s Innovation Distinguished Award by Ministry of Transport, Singapore.

Dr. Fwa has been actively promoting transportation engineering studies and professional interactions in the Asia Region since early 1990s through organizing international/regional conferences and symposia.  He has initiated two international conference series in the Asia Region, namely the International Conference on Road and Airfield Pavement Technology (ICPT) and the Asia Pacific Conference on Transportation and the Environment (APTE). The 9th ICPT Conference was held in Dalian, China in August 2015, and the 10th APTE Conference will be held in Kuala Lumpur, Malaysia in 2016.

Dr Fwa has been invited to lecture and make technical presentations in 17 countries, including keynote lectures at international conferences.  He is the Asia Region Editor for the ASCE Journal of Transportation Engineering since 1989.  He also serves on the editorial boards of the following international journals: International Journal of Pavements (since 2006), International Journal of Pavement Engineering (since 1998), International Journal of Road Design & Pavement Materials (since 1998), and International Journal of Roads and Airports (since 2009).

Wynand Steyn
University of Pretoria
South Africa
Wynand Steyn is a pavement engineer who studied at the University of Pretoria (PhD in 2001). He started his career at the Council for Scientific and Industrial Research (CSIR) in Pretoria, South Africa, where he conducted research into various pavement engineering related topics, with a specific interest into vehicle-pavement interaction effects, evaluating the pavement and freight damage related aspects of this phenomenon. He has been involved in the development of the new SA Pavement Design Method and was principal investigator for the 2012 NCHRP Synthesis project on full-scale APT.

He was appointed as Associate Professor at the University of Pretoria in 2009, and as full professor in 2014. He is responsible for lecturing undergraduate and post-graduate subjects in pavement engineering, and supervises Masters and PhD students in these areas. He is a registered professional engineer in South Africa, a member of SAICE and rated as a B3 researcher with the National Research Foundation in South Africa.

He is author or co-author of 21 journal papers, 14 book chapters, co-editor of 4 books and proceedings and 74 conference papers. He is involved in various South African (SATC, CAPSA, SARF etc.) as well as international conference committees (GeoChina series, APT series, ICTI series). He was chair of SATC from 2011 to 2015, and is co-chair of the 4th GeoChina conference and the 5th International APT conference. He is active in TRB through membership of the AFD40, AFS20, AFN15T and A0010 committees (various periods since 2007), is chair of the Data Analysis Working Group (DAWG) of TRB since 2015, and an Associate Editor of the International Journal of Pavement Engineering.

Association Members

Audrey Copeland, Ph.D., P.E.
Vice President for Engineering, Research, and Technology
National Asphalt Pavement Association (NAPA)

Dr. Audrey Copeland joined NAPA in January 2012. She was previously a materials research engineer in FHWA’s Office of Infrastructure Research and Development at the Turner Fairbank Highway Research Center and a highway engineer in FHWA’s Office of Infrastructure. She is recognized as a technical expert on materials used in the construction of asphalt pavements in highway infrastructure. While at FHWA, she was responsible for leading research and development activities for improving pavement life and providing national guidance on the research and design of asphalt materials and construction of asphalt pavements. Copeland served as Secretary of FHWA’s Recycled Asphalt Pavement Expert Task Group and was a member of FHWA’s Every Day Counts core team to rapidly implement warm-mix asphalt technologies in the United States. She authored FHWA’s RAP State-of-Practice publication and is the author or co-author of over 20 publications.  Audrey serves on the Transportation Research Board’s AFK20 Committee for Characteristics of Bituminous Materials and the Design and Construction Group Young Member subcommittee.  She is a proud member of the Association of Asphalt Paving Technologists, the Canadian Technical Asphalt Association, the American Society of Civil Engineers, and the National Highway Institute Eisenhower Alumni Association.  Copeland earned her Master of Science in Civil Engineering from Tennessee Technological University and her Ph.D. in Civil Engineering from Vanderbilt University.  She is a licensed Professional Engineer in the Commonwealth of Virginia.

Saied Solomons
Sabita (Southern African Bitumen Association)
South Africa

Joined Sabita in his current position during April 2009. He spent 30 years in the oil industry with an international organisation in various functions covering engineering, distribution, sales and marketing across all product lines.  He later joined the executive board as the Director for HSEQ where after he moved on to take on the role of Sales & Marketing Director.  He holds a BComm degree and a Civil Engineering Certificate.

Makio Kayano, Dr.Eng
P.E.Jp(Comprehensive Technical Management) P.E.Jp(Civil Engineering) JSCE Fellow
Japan Road Contractors Association (JRCA)

Technical Committee Leadership (ex-Officio)

Tom Scarpas
Chair – TC on Constitutive Modelling of Asphaltic Materials
Delft University


Dr. Manfred N. Partl
Chair – TC on Asphalt Pavement and Environment         

Carleton University / RILEM Fellow

Manfred Partl graduated as civil engineer and got his PhD in 1983 at the Swiss Federal Institute of Technology ETH in Zurich, Switzerland, for his work on Isothermal Creep of a Bituminous Mortar under Multi-Step Loading. In 1990, after 7 years in the fiber cement industry, he joined the Swiss Federal Laboratories for Material Testing and Research in Dubendorf as Head of the Road Engineering/Sealing Components Center.

Dr. Partl teaches at the Technical College near Zurich and is lecturer at ETH Swiss Federal Institute of Technologies. He is author or co-author of over 170 papers in journals and proceedings and is active in different national and international standardization and scientific committees. He is a Fellow of RILEM (International Union of Laboratories and Experts in Construction Materials, Systems and Structures) where he is member of the Technical Advisory Committee TAC and chairman of the new Technical Committee TC ATB: “Advanced Testing and Characterization of Bituminous Materials.” He is on the Board of Directors of ISAP and international representative in the AAPT Board. He is also associate editor of the International Journal of Road Materials and Pavement Design and of the RILEM Journal of Materials and Structures. Since summer 2004 Dr. Partl is Adjunct Professor at Carleton University in Ottawa.

Eshan Dave
Chair – TC on Pavement Field Evaluation
University of New Hampshire