Faculty Profile

Imad L Al-Qadi

Civil and Environmental Engineering
Imad L Al-Qadi
Imad L Al-Qadi
1207 Newmark Civil Engineering Bldg
205 N. Mathews
Urbana Illinois 61801
(217) 265-0427

Administrative Titles

  • Bliss Professor of Engineering
  • Director, Illinois Center for Transportation
  • Director, Advanced Transportation Research and Engineering Laboratory
  • Director, Smart Transportation Infrastructure Initiative

Primary Research Area

  • Transportation Engineering


Professor Imad L. Al-Qadi, Bliss Professor of Engineering, is the Director of the Advanced Transportation Research and Engineering Laboratory (ATREL), the Illinois Center for Transportation (ICT), and the Smart Transportation Infrastructure Initiative (STII) at the University of Illinois at Urbana-Champaign (UIUC). Al-Qadi is also President of the Transportation Engineering Solutions and Technologies, Inc. He served as an instructor and research engineer at Penn State University from 1988 to 1990 and was a member of the faculty of the Charles E. Via Jr. Department of Civil and Environmental Engineering at Virginia Tech from 1990 to 2004. By 1998, he had been promoted to full professor, and by 2002, he was named the Charles E. Via Jr. Professor of Civil and Environmental Engineering. Al-Qadi holds a B.S. (1984) from Yarmouk University and M.Eng. (1986) and Ph.D. (1990) degrees from Penn State University, all in civil engineering.
A registered professional engineer, Al-Qadi is an elected Distinguished Member of the American Society of Civil Engineers (ASCE), Chapter Honor Member of Chi Epsilon, the Civil Engineering Honor Society, honorary member of the Societa Italiana Infrastrutture Viarie, emeritus member of TRB Committee AHD25 on Sealants and Fillers for Joints and Cracks, and an honorary professor at Southeast University in Nanjing, Chang ￿An University in Xian, and Tongi University in Shanghai, China; Aston University, UK; and KTH Royal Institute of Technology in Stockholm, Sweden, as well as an honorary chair professor at Harbin Institute of Technology, China. He is the Editor-in-Chief of the International Journal of Pavement Engineering, Associate Editor of the Research in Nondestructive Evaluation Journal, past Regional Editor of the Construction and Building Materials Journal, and Guest Editor of ASNT Materials special edition on Nondestructive Evaluation of Pavements. He also serves on the editorial boards of several other journals. Al-Qadi is the only pavement engineer to ever receive the National Science Foundation Young Investigator Award (1994) and the Quadrennial International Geosynthetic Society Award (2002). He received numerous prestigious awards including the ASCE James Laurie Prize (2007), ARTBA S.S. Steinberg Award (2013), ASCE Turner Award (2014), TRR of the National Academies D. Grant Mickle Award (2006), Limoges Medal of Merit (2004), STS Research Award (1993), Virginia Tech College of Engineering Dean￿s Award for Research Excellence (2001), ASCE Outstanding Instructor Award (2006), Illinois Center for Transportation Research Award (2012, 2015), Engineering Council Award for Excellence in Advising (2010), as well as several best paper awards. His achievements were profiled in the TRNews of the National Academies in the November-December 2006 issue.￿
Al-Qadi is the past President of the Board of Governors of the ASCE Transportation and Development Institute. He also served as Group Leader of ISAP Technical Committee on Interlayer Systems, a member of the USDOT Truck Size and Weight Study National Committee, and as a member of the TRB Operation and Maintenance Group. He is the past chair of TRB Preservation and Maintenance Section; TRB Subcommittee on Interlayer Systems to Control Reflective Cracking (founder); TRB Committee AHD25 on Sealants and Fillers for Joints and Cracks; TRB Subcommittee AFS70-2 on Geosynthetics in Flexible Pavement Systems (founder); ASCE Highway Pavement Committee; and ASCE Design, Construction, and Maintenance Executive Council. His service record also includes the role of chair/co-chair of many international conferences, such as the 5th, 6th, and 7th RILEM International Conference on Pavement Cracking; 2006 International NDE Conference on Civil Engineering; Advanced Characterization of Pavement and Soil Engineering Materials; 2006, 2010, 2013, 2017, and 2019 International Airfield and Highway Pavement Conferences; and the First ASCE Transportation and Development Institute Congress. Al-Qadi is a member of several technical committees and a member of the State Transportation Innovation Leadership Team-Illinois. He is an emeritus of the Transportation Research Board (TRB) and a member of the Association of Asphalt Paving Technologists (AAPT), North American Geosynthetic Society (NAGS), International Society of Asphalt Pavements (ISAP), International Geosynthetic Society (IGS), American Society of Nondestructive Testing (ASNT), International Association of Computer Methods and Advances in Geomechanics (IACMAG), and the American Society for Testing and Materials (ASTM).
Al-Qadi￿s scholarly record features 600+ authored/co-authored publications, more than 350 of which are fully refereed papers (250 in periodic journals). His research resulted in the development of new tests, testing specifications, advanced modeling and simulation of pavement loading, pavement layer interface and crack development, and analysis of radar electromagnetic wave interactions with civil engineering materials, roads, and bridges. Al-Qadi presented the outcome of his research at 600+ national and international conferences and international meetings, including numerous invited keynote and distinguished lectures. He has served as principal investigator of 120+ projects, with funding in excess of $100 million, sponsored by various federal, state, and international agencies and industry. He has also managed more than 230 projects sponsored by ICT. Al-Qadi has consulted for numerous federal, state, and major public agencies in the U.S. and abroad, including the Federal Highway Administration (FHWA), BP Amoco, Michelin, Bekaert, Maccaferri, DMJM+HARRIS, ARAMCO, and Koch.

For more information

Research Statement

Al-Qadi￿s teaching, research, and consulting interests and expertise focus primarily on civil engineering and pavement materials, sustainability, highway and airfield pavement mechanics, advanced modeling, including viscoelastic response to tire loading, pavement fracture, tire￿pavement interaction, tack coat application rate optimization, and modeling of pavement interface and interlayer systems (including geosynthetics); nondestructive testing evaluation, including ground penetrating radar signal analysis; infrastructure asset management systems, including pavement recycling optimization and pavement condition assessment, rehabilitation, and life-cycle assessment; transportation infrastructure instrumentation and full-scale accelerated testing; polymerized asphalt rheology; and forensic engineering and arbitration.

Research Interests

  • Asphalt Technology and Binder Rheology
  • Pavement Sustainability, Recycling, and Life Cycle Assessment
  • Pavement Fracture, Reflection Cracking, and Geosynthetically Stabilized and Reinforced Pavements
  • Nondestructive Evaluation and Noninvasive Material Characterization; Ground Penetrating Radar
  • Pavement Modeling, Design, Analysis, Instrumentation, Rehabilitation, and Management Systems

Selected Articles in Journals

Research Honors

  • Dr. Al-Qadi￿s graduate students received numerous awards from FHWA (Eisenhower fellows), FAA, AAPT, ASCE, ACPR, IAPA, ICT, WTS, Society of Women Engineers, and many other organizations. He advised them throughout the award research requirements.
  • Advisor for many winning projects including the FAA Design Competition for Universities on Airport and Operation and Maintenance, 2008 (won 1st and 3rd places) and 2009 (won 2nd place).
  • Dr. Al-Qadi￿s research has appeared in several professional magazines, newspapers, and TV and radio programs in the US, and abroad, including ASCE Magazine, Roads and Bridges, Washington Post, Chicago Tribune, Daily Herald, Roanoke Times, News Gazette, AVIONEWS, Transportation Urban Planning Magazine, Erosion, Alhayat, Alwatar, Quds, Rockford Register Star, WCIA, WAND, Tyre Asia, and several other publications.
  • Several of Dr. Al-Qadi￿s TRB papers were selected Practice-Ready Papers and distributed to the US DOT materials and pavement engineers:￿Runway Instrumentation and Response Measurements,￿ ￿Influence of Filler Fractional Voids on Mastic and Mixture Performance,￿ ￿Impact of Wide-Base Tires on Pavements: Results from Instrumentation Measurements and Modeling Analysis,￿ ￿Performance Characterization of Asphalt Mixtures at High Asphalt Binder Replacement with Recycled Asphalt Shingles,￿ ￿Characterization and Stabilization of Quarry Byproducts for Sustainable Pavement Applications,￿ ￿Development of Present and Baseline Scenarios to Assess Sustainability Improvements of Illinois Tollway Pavements Using a Life-Cycle Assessment Approach,￿ ￿Field Evaluation of Geocell Use in Flexible Pavements,￿ ￿Steel Reinforcing Netting Mechanism to Reduce Reflective Cracking in Asphalt Concrete Overlays,￿ ￿Successful Application of GPR for Quality Assurance/Quality Control of New Pavements,￿ ￿Quantification of Pavement Damage Due to Dual and Wide-Base Tires,￿ and ￿Comparison between Resilient Modulus and Dynamic Modulus of Hot-Mix Asphalt as Material Properties for Flexible Pavement.￿
  • Several of Professor Al-Qadi￿s students received Best Poster Awards at several conferences, including International Transportation PhD Symposiums.
  • 3rd Poster Award, International Pavement Life Cycle Assessment Symposium, Champaign, April 12-13, 2017 (w/ S. Kang).
  • 1st Poster Award, International Pavement Life Cycle Assessment Symposium, Champaign, April 12-13, 2017(w/ A. Gomez).
  • Research Award, 57th Illinois Bituminous Paving Conference, 2016.
  • The Principal Investigator of the AASHTO Sweet 16 High Value Research project "Testing Protocols to Ensure Performance of High Asphalt Binder Replacement Mixes Using RAP & RAS," 2016.
  • The ASCE T&DI￿s Francis C. Turner Award, 2014.
  • 2013 S. S. Steinberg Award in Education and Research, American Road and Transportation Builders Association, 2014.
  • 1st Place Poster, Pavement Life Cycle Assessment Symposium, Davis, CA, Oct 14-16 (with R. Yang and H. Ozer).
  • Gene Skok Award for Outstanding Paper by a Young Author, AFD70 Committee on Rehabilitation, TRB (Q. Aurangzeb, the first Author) .
  • ICT Research Award, 99th Transportation and Highway Engineering Conference, 2013.
  • The Principal Investigator of the AASHTO Sweet 16 High Value Research project "Best Practices for Implementation of Tack Coat: PART I - Laboratory Study and PART 2 - Field Study," 2013 (the top project in the Midwest).
  • T&DI/ASCE Best Paper Award by a Young Author, Airfield and Highway Pavement Conference, Los Angeles, CA, Jun 2013 (J. Hernandez, the first Author).
  • Recipient of the 2009 Advisor of FAA Design Competition for Universities on Airport and Operation and Maintenance,￿ 2nd place, FAA.
  • The 2009 Association of Asphalt Paving Technologists Emmons Award Runner-up for Best Paper ￿The Truth and Myth of Fatigue Cracking Potential in Hot-Mix Asphalt: Numerical Analysis and Validation.￿
  • Runner-up for the K. B. Wood Award for the outstanding paper in the field of design and construction of transportation facilities, ￿Dynamic Analysis and In-Situ Validation of Perpetual Pavement Response to Vehicular Loading,￿ Transportation Research Board (TRB), National Academy of Engineering, Washington, DC (2009).
  • The paper ￿Eight-Years of Field Performance of a Secondary Road Incorporating Geosynthetics at The Subgrade-Base Interface,￿ was selected as one of the best published papers by TRR on geosynthetics in pavements in the past 10 years (2008).
  • Recipient of the 2008 Advisor of FAA Design Competition for Universities on Airport and Operation and Maintenance,￿ 1st and 3rd place, FAA.
  • Recipient of the 2007 ASCE James Laurie Prize ￿for advancing transportation engineering through his effective leadership, exceptional scholarly contribution, and research innovations on pavement materials, analysis and design; pavement instrumentation; ground penetrating radar; and pavement interlayer systems.￿
  • Recipient of the 2006 D. Grant Mickle Award for the outstanding paper in the field of operation, safety and maintenance of transportation facilities, ￿Viscoelastic Model to Describe Mechanical Response of Bituminous Sealants at Low Temperature,￿ Transportation Research Board (TRB), National Academy of Engineering, Washington, DC (2007).
  • Dr. Al-Qadi's Achievements were profiled in the TRNews of the National Academies, November-December 2006, Number 247 (2006).
  • Named the Founder Professor of Engineering, UIUC, Urbana, IL (2004).
  • Recipient of the Limoges Medal of Merit, Limoges, France (2004).
  • Selected Researcher of the Week, Virginia Tech and WVTF, Blacksburg, VA, May 2003.
  • Recipient of the 2002 Quadrennial International Geosynthetic Society Award, Nice, France.
  • Named the Charles E. Via, Jr. Professor of CEE, Virginia Tech, Blacksburg, VA (2002).
  • Runner-up for the K. B. Wood Award for the outstanding paper in the field of design and construction of transportation facilities, ￿Measurement of Vertical Compressive Stress Pulse in Flexible Pavements and Its Representation for Dynamic Loading Tests," Transportation Research Board (TRB), National Academy of Engineering, Washington, DC (2002).
  • Recipient of the 2001 Virginia Tech College of Engineering Dean￿s Award for Research Excellence, Blacksburg, VA.
  • Virginia Tech Nominee to the National Science Foundation 1994 & 1996 Presidential Faculty Fellow Award.
  • Recipient of the 1994 National Science Foundation Presidential Young Investigator Award, Washington, DC.
  • 1994 Conference of Southern States Young Scholar Award (Top Three).
  • Recipient of STS Research Award, Best Paper by an Academic Researcher, 5th International Conference on Structural Faults and Repair, Edinburgh, Scotland, June 1993.
  • Dr. Al-Qadi's paper "Using Microwave Measurements to Detect Moisture in Hot-Mix Asphalt" was selected by the Virginia Tech College of Engineering for the 1992 Outstanding Contribution in Research Award sponsored by Southeastern Section of ASEE