Shane Buchanan – Nominee for Director-at-Large, March 2019 to March 2020
Shane Buchanan is an Asphalt Performance Manager with CRH Americas Materials (formerly Oldcastle Materials). After obtaining his B.S. in Civil Engineering from Mississippi State University in 1992 he began graduate school at Auburn University in 1994 under the direction and encouragement of Dr. Ray Brown (to whom he will be forever grateful!). He obtained his M.S. and Ph.D. in Civil Engineering from Auburn University in 1996 and 1999, respectively.
He served as a research engineer/associate with the National Center for Asphalt Technology (NCAT) in from 1995 to 2001. During this time he directed research in the areas of Superpave mix design and analysis procedures, mixture production and field construction, and new product development for the NCHRP, NAPA, state departments of transportation and private industry. He was also very active in NCAT industry training activities, including the professor training course.
After leaving NCAT Shane served as Executive Director of the Alabama Asphalt Pavement Association where he worked closely with the Alabama Department of Transportation (ALDOT) to develop and implement specifications for HMA mix design and production, construction, quality control and assurance, and life cycle cost analysis.
In 2002 Shane began work as an Assistant Professor of Civil Engineering at Mississippi State University where he instructed the construction materials, pavement design, geometric design of highways and streets, and HMA materials courses. Additionally, he managed the Construction Materials Research Center and helped develop the initial stone matrix asphalt (SMA) and open-graded friction course (OGFC) specifications for the Mississippi Department of Transportation (MDOT).
Shane joined Vulcan Materials Company in 2005 as a Senior Materials Engineer working at their Technical Services Center in Birmingham, Alabama. In this capacity, he help develop and supervise testing programs to evaluate aggregate (construction and industrial minerals), asphalt, and concrete products; strategic aggregate reserves, and potential acquisition sources. During this time, he was also fortunate enough to become co-author of National Stone Sand and Gravel Association (NSSGA) Aggregate Handbook, Second Edition, Chapter 18: Quality Control, Sampling and Testing.
Beginning his current role in 2012 with CRH Americas Materials, he is responsible for helping guide the CRH asphalt mix engineering efforts to improve asphalt mix and production efficiencies while improving the quality of produced asphalt materials. Additionally, he has taken an active role in advancing balanced mix design approaches.
Shane has authored or co-authored over 45 journal articles, research reports, and other technical publications, and made over 100 presentations at technical conferences and meetings. Shane serves on various technical committees and panels for TRB, NAPA, NCAT, ASTM, FHWA, and NCHRP. Shane is a registered Professional Engineer in Alabama.
Stacey Diefenderfer – Nominee for Director-At-Large, March 2019 to March 2020
Stacey Diefenderfer is a Senior Research Scientist at the Virginia Transportation Research Council, the Virginia Department of Transportation’s research division, where she has worked for the past 15 years. She received her B.S., M.S., and Ph.D. degrees from Virginia Tech in 1997, 1999, and 2009, respectively, and is a licensed professional engineer in Virginia. Her research interests include recycling, warm mix asphalt, asphalt binders, and mixture design and evaluation. Stacey’s current work is focused on performance testing and performance mixture design approaches to both improve mixture durability and foster the use of innovative materials and methods. She led VDOT’s efforts in adopting the use of WMA, supported implementation of the AASHTO PavementME software in Virginia, and is currently overseeing research efforts towards the development and adoption of balanced/performance mix design and the use of increasing RAP contents.
Stacey has been a member of AAPT since 2005, when she and her husband Brian both joined the association. She is currently a member of the Membership Committee and Editorial Board, and hopes to show others the professional and personal benefits of being part of such a supportive organization as AAPT. She previously has served on the Nominating Committee and as a student poster judge during the Annual Meeting. In 2015, she was a co-author of the W.J. Emmons Annual Award runner-up paper. She also co-authored the paper receiving the W.J. Emmons Annual Award in 2016.
Stacey is also active in TRB, currently serving as the chair of committee AFK30 Non Binder Components of Asphalt Mixtures, and is a member of committee AFK50 Structural Requirements of Asphalt Mixtures. She previously was a member of AFK20 Characteristics of Asphalt Materials and AF000(4) Design and Construction Group Young Members Subcommittee. Stacey chaired the research panel for NCHRP Project 09-55 and has served on five other NCHRP research panels and one NCHRP synthesis panel.
Stacey lives in Charlottesville, VA, with Brian and their three sons, Ian (10), Eric (7), and Levi (3), where she’s also a soccer and baseball mom.
Amy Epps Martin – Nominee for Director-at-Large, March 2019 to March 2020
Since Amy joined the faculty at Texas A&M University in 1997, she has only missed three AAPT annual meetings due to pregnancy or her husband’s health. She has served on AAPT nominating, Emmons award, and scholarship committees; co-chaired the Newer Members Committee; and served on the Board as Director-at-Large in 2012-13. She has published and presented 13 papers in AAPT with recognition as runner- up for the Emmons award in 2016. She also received the AAPT Board of Directors Award of Recognition in 2011. She appreciates all of the support over the years from the AAPT family, and looks forward to continuing the tradition through further participation and leadership opportunities.
Amy is currently a Professor in the Zachry Department of Civil Engineering at Texas A&M University, a Researcher with the Texas A&M Transportation Institute (TTI), and a registered professional engineer in the state of TX. She has more than 21 years of experience teaching asphalt pavement materials courses and conducting research on safe, sustainable asphalt technologies including both binders and mixtures. Her leadership experience includes service as Division Head for the Transportation and Materials Division of the Zachry Department of Civil Engineering from 2011-2014 and as PI on 9 state department of transportation (DOT) research and implementation projects and 3 National Cooperative Highway Research (NCHRP) research projects. She has also served as Co-PI or Co-Investigator on another 8 state DOT research projects and 6 national Federal Highway Administration (FHWA) or NCHRP research projects. She actively publishes and presents research at regional, national, and international conferences and workshops, and has mentored almost 40 graduate students. She also serves on relevant AAPT, TRB, and FHWA committees and task forces to further research and implementation efforts and participates with Women of Asphalt on panels at national and regional meetings. Her efforts have been recognized by AAPT as noted above, by TRB with a Design and Construction Group Practice-Ready Paper Award, by TTI with a New Researcher Award and the Herb Richardson Award for the Moving the Giants Team effort to establish the Center for Infrastructure Renewal (CIR) at Texas A&M, and by Texas A&M with a professorship, faculty fellowship, college- and department-level teaching awards, a department-level leadership award, and a Fish Camp Namesake.
Amy currently lives in Cypress, TX, near Houston with her husband Kyle and three sons, Jacob (15), Connor (12), and Cooper (12). In her spare time she enjoys scrapbooking, running, and supporting her boys in their many athletic and musical endeavors.
Louay Mohammad – Nominee for Director-at-Large, March 2019 to March 2020
Dr. Louay Mohammad is a Professor of Civil and Environmental Engineering (CEE) and holder of the Irma Louise Rush Stewart Distinguished Professorship and Transportation Faculty Group Coordinator at Louisiana State University (LSU). He also serves as the director of the Engineering Materials Characterization and Research Facility at the Louisiana Transportation Research Center (LTRC). He is a registered professional engineer in Wyoming. Dr. Mohammad teaches and conducts research in the area of Highway Construction Materials, Pavement Engineering, Accelerated Pavement Testing, Advanced Materials Characterization and Modeling, and Infrastructure Sustainability. He is a national and international leader in fundamental characterization and modeling of highway construction materials, and asphalt pavement performance with more than 30 years of industrial and academic experience.
Dr. Mohammad is a member of AAPT for more 27 years. He is privileged to serve the Association of Asphalt Paving Technologists. Dr. Mohammad was responsible for the electronic archiving of AAPT Proceedings, where papers that dated back to 1928 through 2000 were scanned, edited, and stored into electronic storage media in a searchable format. He served as a member of the Emmons awards committee (2009-2011), publication committee (2014-present), and regularly attends and presents at the annual meetings. Dr. Mohammad has authored/co-authored more than 27 publications that were included in the Journal of Asphalt Paving Technologists. Dr. Mohammad conducted two webinars for AAPT: Balanced Mix Design for Asphalt Mixtures (November 16, 2017) and Additives – What is on the Horizon? (November 8, 2018) that were highly rated by participants. He is the recipient of the 2002 AAPT Board of Directors Award of Recognition and the runner up for the 2009 AAPT Emmons Award.
Dr. Mohammad earned a reputation of excellence in teaching transportation engineering courses at the undergraduate and graduate levels. He actively pursues opportunities for undergraduate students to obtain work experience in transportation engineering. Notable among his achievements is the development of the Asphalt Technology Scholarships through the support of industry. Over 130 scholarships have been awarded at LSU since 1994. This scholarship program was featured in a national article titled “Scholarships Fuel Interest in Asphalt–Louisiana a Model for States” published by the National Asphalt Pavement Association.
Dr. Mohammad has led national level tack coat research and his work has shaped the current tack coat specifications at a national level, increasing pavement life by approximately 21%. Dr. Mohammad has been actively involved in the development and implementation of Balanced Asphalt Mixture Design that has changed the engineering State-of Practice in flexible pavement through changes to the 2016 Louisiana asphalt specifications for Roads and Bridges.
Dr. Mohammad has served as the principal or co-principal investigator on more than 62 research projects totaling over $28.6M. He has authored/coauthored more than 327 publications in pavement engineering including over 193-refereed papers, and delivered over 200 keynote and invited presentations at national and international conferences. His projects are sponsored by NCHRP, FHWA, NSF, LADOTD, CODOT, FDOT, WisDOT, industry, etc. Results from recently completed research project yielded ASTM and AASHTO standard test procedures (ASTM D8044 Evaluation of Asphalt Mixture Cracking Resistance using the Semi-circular Bend Test at Intermediate Temperature, AASHTO TP 114 Determining the Interlayer Shear Strength of Asphalt Pavement Layers, AASHTO TP 115 Determining the Quality of Tack Coat Adhesion to the Surface of an Asphalt Pavement in the Field or Laboratory). Another recently completed NCHRP Project 20-07/Task 361 resulted in a major revision to AASHTO T 324 Standard Method of Test for Hamburg Wheel-Track Testing of Compacted Hot Mix Asphalt. He developed and conducted webinars for NCHRP, NAPA, and LADOTD that were highly rated by participants. Dr. Mohammad was the PI for the recently completed NCHRP Projects 9-40A, 9-40, 9-48, and 20-07/Task 361, and Co-PI for NCHRP Projects 9-49A and 10-84.
Dr. Mohammad is a member of numerous technical organizations. He is past Chair of TRB Committee on Surface Requirements of Asphalt Mixtures, past Chair of ASCE Bituminous Materials Committee, Chair of ASTM D04.25 on Bituminous Mixture Analysis, board member of the Southeastern Asphalt User Producer Group (2003-2006), and members of TRB Committees on Non-Binder Components of Asphalt Mixtures, Surface Requirements of Asphalt Mixtures, and Structural Requirements of Asphalt Mixtures. He is a member of FHWA Expert Task Group on Asphalt Mixtures and Construction, and LADOTD Asphaltic Concrete Specification Committee. Dr. Mohammad currently serves as the Flexible Pavement Section Editor of ASCE Journal of Materials in Civil Engineering, Associate Editor of the Journal of Engineering Research and International Journal of Pavement Research and Technology. He serves on the Boards of several technical committees including the ASCE Transportation and Development Institute, Louisiana Chapter.
Dr. Mohammad has been recognized with the 2013 Best Paper Award of the 8th International Conference on Road and Airfield Pavement Technology, 2010 Distinguished Research Paper of the Journal of Engineering Research, the 2009, 2012, and 2015 Asphalt Rubber Ambassador Award, and the 2005 and 2014 Research Achievement Award of the CEE Department at LSU for his excellence in teaching and research.
Gerald Reinke – Nominee for Director-at-Large, March 2019 to March 2020
Gerald Reinke has been heavily involved in asphalt technology for almost 50 years. He graduated in 1970 with a BS in chemistry from the University of Wisconsin at Stevens Point. While in college, he began working part-time as a lab technician for Asphalt Products – a company that produced asphalt emulsion and marketed asphalt cement. After college, the job grew into a full-time technical manager position as the company expanded operations.
From 1979-1991, Gerry worked for Koch Materials Company in St. Paul, Minnesota. He started as the sole person responsible for providing technical support and product development to the fledgling asphalt emulsion and asphalt cement business of Koch Industries. During his time with Koch Materials, the Technology Group expanded and he was subsequently promoted to Vice President of Technology in 1984. By the time Gerry left in 1991 he was responsible for 60 technical people operating in six divisions across the United States.
Since 1991, Gerry has worked as Technical Director for Mathy Construction Company and President of Mathy Technology and Engineering – the technology subsidiary of Mathy Construction – in Onalaska, Wisconsin. He has been responsible for testing, product development, and research of asphalt binders, including polymer modified asphalt binders, to comply with Performance-Graded asphalt binder requirements.
Gerry joined AAPT in 1982 and has maintained continuous membership since then, becoming a Life Member in 2012. He has been a frequent contributor to the Association, as a co-author of papers, reviewer, presenter, and discusser. Gerry received the Directors’ Award of Recognition in 2010, recognizing his many contributions to AAPT.
In addition to AAPT, he has served as a member of and frequent contributor to the Asphalt Binder Expert Task Group. He is a member of the International Society for Asphalt Pavements (ISAP), Association of Modified Asphalt Producers (AMAP), Asphalt Emulsion Manufacturers Association (AEMA), Canadian Technical Asphalt Association (CTAA), American Chemical Society, Society of Rheology, ASTM Committee D-4 on Road and Paving Materials (serving as chair of Subcommittee D4.44 from 1996-2001), and Transportation Research Board (TRB). Gerry has published more than a dozen technical papers on asphalt technology in peer-reviewed journals and has made presentations at numerous technical conferences. He also holds several patents related to asphalt technology.
In addition to his other industry activities Gerry has been active in his support of the Asphalt Institute, serving as Chair of two of AI’s key committees – the Technical Advisory Committee (TAC) and Health, Safety, and Environment (HS&E) Committee. For his many efforts in the asphalt industry, he was elected to the Asphalt Institute Roll of Honor in 2015.