Dr. Charles Schwartz
Philip J. Erdle Chair in Engineering Science
Bio
Dr. Charles W. Schwartz received his BS, MS, and PhD in Civil Engineering from the Massachusetts Institute of Technology. He is currently the Philip J. Erdle Chair of Engineering Science within the Department of Civil and Environmental Engineering at the U.S. Air Force Academy. Prior to this, he was Professor and past Chair of Civil and Environmental Engineering at the University of Maryland College Park, where he taught courses on pavement design and analysis, advanced soil mechanics, and computational geo- and pavement mechanics. His research interests and experience span the areas of analytical and numerical mechanistic modeling of pavement structures and the characterization and laboratory/field testing of pavement materials.
National research projects in which Dr. Schwartz has played a leadership role include the Transportation Pooled Fund Study TPF-5(285) Standardized Lightweight Deflectometer Measurements for QA and Modulus Determination in Unbound Bases and Subgrades, NCHRP 9-51 Material Properties of Cold In-Place Recycled and Full Depth Reclamation Asphalt Concrete for Pavement Design, NCHRP 1-47 Sensitivity Evaluation of MEPDG Performance Prediction, NCHRP 9-30A Calibration of Rutting Models for HMA Structural and Mix Design, NCHRP 9-30 Experimental Plan for Calibration and Validation of Hot Mix Asphalt Performance Models for Mix and Structural Design, NCHRP 9-19 Superpave Performance Models, and the FHWA projects Evaluation of LTPP Climatic Data for Use in MEPDG Calibration and Other Pavement Analysis and Using Radio Frequency Identification Technology to Better Manage and Assess Pavements. He was also a member of the flexible pavement team on NCHRP Project 1-37A 2002 Pavement Design Guide. Dr. Schwartz regularly assists local agencies and private firms on pavement-related topics. Dr. Schwartz in the past has also been active in the development and implementation of pavement management systems for airfield and highway pavements, including pioneering systems at John F. Kennedy, Newark, and LaGuardia International airports, the State of Delaware, and others.
Dr. Schwartz has been an active member of TRB (Past Chair, Standing Committee AFD80—Pavement Structural Modeling and Evaluation, ASCE (Past Chair, Geo-Institute Pavements Committee; Member, T&DI Highway Pavements Committee), AAPT, and ISAP. He serves on the editorial boards for the International Journal of Pavement Engineering and Transportation Geotechnics. He also was a co-developer of the National Highway Institute course Geotechnical Aspects of Pavement Design (NHI Course 132040).
Education
Doctor of Philosophy, Civil Engineering, Massachusetts Institute of Technology (1979)
Master of Science, Civil Engineering, Massachusetts Institute of Technology (1977)
Bachelor of Science, Civil Engineering, Massachusetts Institute of Technology (1974)
Professional Experience
U.S. AIR FORCE ACADEMY
2022 – present: Philip J. Erdle Chair of Engineering Science, Department of Civil and Environmental Engineering.
UNIVERSITY OF MARYLAND
2014 – 2021: Chair, Department of Civil and Environmental Engineering
2010 – 2021: Professor, Department of Civil and Environmental Engineering
1984 – 2010: Associate Professor, Department of Civil and Environmental Engineering
1979 – 1984: Assistant Professor, Department of Civil and Environmental Engineering
OTHER
1975-1979: Massachusetts Institute of Technology, Cambridge, MA. Graduate teaching and research assistant in the Department of Civil Engineering.
1974-1975: Stone and Webster Engineering Co., Boston, MA. Staff structural engineer for the design of nuclear and hydroelectric power plants.
Honors & Awards
Carl L. Monismith Lecture on Pavement Engineering (2020)
Research and Scholarly Interests
Analytical and numerical mechanistic modeling of pavement structures; characterization and laboratory/field testing of pavement materials.
Publications
ARCHIVAL PUBLICATIONS (PAST 10 YEARS)
Alam-Khan, S., Cetin, B., Forman, B.A., Kutay, M.E., Durham, S., and Schwartz, C.W. “Evaluation of Shortwave and Longwave Radiation Models in Flexible Pavement Analysis.” International Journal of Pavement Engineering. Published online 3/9/2021. DOI: 10.1080/10298436.2021.1895155
Haider, I., Schwartz, C.W., and Khosravifar, S. (2019). “Expedited Testing Program for Performance Characterization of Asphalt Mixtures.” Transportation Research Record, Vol. 2673, No. 12, pp. 225-233. DOI: 10.1177/0361198119857033
Gopisetti, L. S. P., Cetin, B., Forman, B.A., Durham, S.A., Schwartz, C.W., and Ceylan, H. (2019). “Evaluation of Four Different Climate Sources on Pavement Mechanistic-Empirical Design and Impact of Surface Shortwave Radiation.“ International Journal of Pavement Engineering. DOI: 10.1080/10298436.2019.1665180
Hall, K.D. and Schwartz, C.W. (2018). “Development of Structural Design Guidelines for Porous Asphalt Pavement.” Transportation Research Record: Journal of the Transportation Research Board, Volume 2672, No. 40, December, pp. 197–206.
Goulias, D., Karimi, S., and Schwartz, C. (2018). “Assessing Specification Pay Schedules through Monte Carlo Simulation.” International Journal of Computational Engineering Research, Vol. 8, No. 10, October, pp. 57-65.
Cetin, B., Forman, B.A., Schwartz, C.W., Ruppelt, B. (2018). “Performance of Different Climate Data Sources in Mechanistic-Empirical Pavement Distress Analyses.” ASCE Journal of Transportation Engineering, Part B: Pavements. Vol. 144, No. 1, March.
Bowers, B.F., Diefenderfer, B.K., and Schwartz, C.W. (2018). “Assessment of Permanent Deformation Properties of In-Place Recycled Pavement Mixtures.” Journal of the Association of Asphalt Paving Technologists. Volume 87, pp. 241-263.
Liu, X., Cui, Q., and Schwartz, C.W. (2018). “Introduction of Mechanistic-Empirical Pavement Design into Pavement Carbon Footprint Analysis.” International Journal of Pavement Engineering. Volume 19, Issue 9, September, pp. 763-771.
Douglas, E.M, Jacobs, J., Hayhoe, K., Silka, L., Daniel, J., Collins, M., Alipour, A., Anderson, B., Hebson, C., Mecray, E., Mallick, R., Zou, Q., Kirshen, P., Miller, H., Kartez, K., Friess, L., Stoner, A., Bell, E., Schwartz, C., Thomas, N., Miller, S., Audet, B., Wake, C. (2017). “Progress and Challenges in Incorporating Climate Change Information into Transportation Research and Design.” ASCE Journal of Infrastructure Systems, Vol. 23, No. 4, December.
Diefenderfer, B.K., Bowers, B.F., Schwartz, C.W., Farzaneh, A. and Zhang, Z. (2016). “Dynamic Modulus of Recycled Pavement Mixtures.” Transportation Research Record: Journal of the Transportation Research Board, No. 2575, pp. 19-26.
Schwartz, C.W., Forman, B.A., and Leininger, C.W. (2015). “Alternative Sources of Climate Data for Mechanistic-Empirical Pavement Performance Prediction.” Transportation Research Record: Journal of the Transportation Research Board, No. 2524, pp. 83–91. (10.3141/2524-08)
Karimi, S.S., Goulias, D.G., and Schwartz, C.W. (2015). “Effects of Bonus Provisions on HMA Superpave Mixture Specifications Through Pay Factor Analysis,” 6th International Conference on Bituminous Mixtures and Pavements, Thessaloniki, Greece, June, pp. 801-805.
Khosravifar, S., Afsharikia, Z., and Schwartz, C.W. (2015). “Evaluation of Resilient Modulus Prediction Models for Cohesive and Non-Cohesive Soils.” ASCE Airfield and Highway Pavement Conference, Miami FL, June. pp. 778-788. (DOI: 10.1061/9780784479216.069)
Bassani, M., Khosravifar, S., Goulias, D.G., and Schwartz, C.W. (2015). “Long-Term Resilient Properties of Low Density Controlled Low-Strength Materials For Pavement Applications.” Transportation Geotechnics, Vol. 2, March, pp. 108-118 (DOI: 10.1016/j.trgeo.2014.12.001).
Karimi, S.S., Goulias, D.G., and Schwartz, C.W. (2014). “Risk and Expected Pay Factor Analysis for Assessing Gap and Dense Graded Superpave Mixture Specifications.” International Journal of Pavement Engineering, Vol. 16, Issue 1, pp. 69-79.
Liu, X., Cui, Q., and Schwartz, C. (2014). “Performance Benchmark of Greenhouse Gas Emissions from Asphalt Pavement in the United States.” Creating Infrastructure for a Sustainable World, International Conference on Sustainable Infrastructure 2014, ASCE, Long Beach CA, November, pp. 678-689.
Khosravifar, S., Haider, I. Afsharikia, A., and Schwartz, C.W. (2014). “Application of Time-Temperature Superposition to Develop Master Curves of Cumulative Plastic Strain.” International Journal of Pavement Engineering, Vol. 16, No. 3, April, pp. 214-223 (DOI: 10.1080/10298436.2014.937810).
Ceylan, H., Kim, S., Gopalakrishnan, K, Schwartz, C.W., Li, R. (2014). “Sensitivity Analysis Framework for Mechanistic-Empirical Pavement Design of Continuously Reinforced Concrete Pavements,” Construction and Building Materials, Vol. 73, pp. 498-508.
Khosravifar, S., Schwartz, C.W., and Goulias, D.G. (2014). “Mechanistic Structural Properties of Foamed Asphalt Stabilized Base Materials.” International Journal of Pavement Engineering. Vol. 16, No. 1, January, p. 27-38.
Ceylan, H., Kim, S., Gopalakrishnan, K., Schwartz, C.W., and Li, R. (2013). “Sensitivity Quantification of Jointed Plain Concrete Pavement Mechanistic-Empirical Performance Predictions.” Construction and Building Materials, Vol. 43, June, pp. 545-556.
Ceylan, H., Gopalakrishnan, K., Kim, S., Schwartz, C.W., and Li, R. (2013). “Global Sensitivity Analysis of Mechanistic-Empirical Performance Predictions for Jointed Plain Concrete Pavements.” Transportation Research Record: Journal of the Transportation Research Board, No. 2367, pp. 113-122.
Schwartz, C.W., Li, R., Ceylan, H., Gopalakrishnan, K., Kim, S. (2013). “Global Sensitivity Analysis of Mechanistic-Empirical Performance Predictions for Flexible Pavements.” Transportation Research Record: Journal of the Transportation Research Board, No. 2368, pp. 13-23.
Liu, X., Cui, Q., and Schwartz, C.W. (2014). “Greenhouse Gas Emissions of Alternative Pavement Designs: Framework Development and Illustrative Application.” Journal of Environmental Management, Vol. 132C, pp. 313-322 (DOI 10.1016/j.jenvman.2013.11.016).
Khosravifar, S., and Schwartz, C.W. (2013). “Time-Dependent Stiffness Increase of Foamed Asphalt Stabilized Base Material.” 9th International Conference on the Bearing Capacity of Roads, Railways, and Airfields, Trondheim, Norway, June, pp. 930-948.
Carvalho, R.L and Schwartz, C.W. (2013). “The Importance of Simulating Moving Wheel Loads in the Mechanistic Analysis of Permanent Deformations in Flexible Pavements.” ASCE Airfield and Highway Pavements Conference 2013: Sustainable and Efficient Pavements, Los Angeles CA, June, pp. 1156-1166.
Khosravifar, S., Schwartz, C.W., and Goulias, D.G. (2013). “Foamed Asphalt Stabilized Base: A Case Study.” ASCE Airfield and Highway Pavements Conference 2013: Sustainable and Efficient Pavements, Los Angeles CA, June, pp. 106-117.
Li, R., Schwartz, C.W., and Forman, B. (2013). “Sensitivity of Predicted Pavement Performance to Climate Properties.” ASCE Airfield and Highway Pavements Conference 2013: Sustainable and Efficient Pavements, Los Angeles CA, June, pp. 760-771.
Khosravifar, S., Asefzadeh, A., and Schwartz, C.W. (2013). “Increase of Resilient Modulus of Unsaturated Granular Materials During Drying After Compaction.” GeoCongress 2013 Stability and Performance of Slopes and Embankments III, ASCE, San Diego CA, February, pp. 434-443.
Von Quintus, H.L., Mallela, J., Bonaquist, R., Schwartz, C.W., and Carvalho, R.L. (2012). “Calibration of Rutting Models for Structural and Mix Design,” NCHRP Report 719, Transportation Research Board, Washington DC.
Karimi, S., Goulias, D. and Schwartz, C.W. (2012). “Evaluation of Superpave HMA Mixture Properties at the Plant versus Behind the Paver: Statistical Comparison of QC and QA Data.” Journal of Transportation Engineering, ASCE, Vol. 138, No. 7, July, pp. 924-932.
Ceylan, H., Kim, S., Schwartz, C.W., Li, R., and Gopalkrishnan, K. (2012). “Effect of PCC Material Properties on MEPDG Rigid Pavement Performance.” 10th International Conference on Concrete Pavements, Quebec, July.
Khosravifar, S., Goulias, D.G., and Schwartz, C.W. (2012). “Laboratory Evaluation of Foamed Asphalt Base Materials.” GeoCongress 2012, Oakland CA, February, pp. 1592-1601.
Li, R., Schwartz, C.W., Kim, S., and Ceylan, H. (2012). “Local Sensitivity of Mechanistic-Empirical Flexible Pavement Performance Predictions to Unbound Material Property Inputs.” GeoCongress 2012, Oakland CA, February, pp. 1495-1504.
PRESENTATIONS (PAST 10 YEARS)
“Structural Characteristics and Environmental Benefits of Cold-Recycled Asphalt Paving Materials.” 33rd Rhode Island Transportation Forum (virtual), October 2020.
“Using Lightweight Deflectometers for Compaction Control.” Arizona Pavement/Materials Conference (virtual), October 2020.
“Innovation: The Key to the Highway Infrastructure of Tomorrow.” COTA International Conference of Transportation Professionals, Nanjing, China, July, 2019; also Tsinghua University Seminar, Beijing, China, July, 2019.
“Industry, Agency, and University Collaboration.” 57th Maryland Asphalt Association – Maryland State Highway Administration Asphalt Paving Conference, Baltimore, March 2019.
“Preparing Future Bechtel Colleagues.” Panel Discussion, Bechtel Global Business Meeting Building on the Past; Designing our Future, San Diego, CA, March 2019.
“Parametric Study of Soil Drying in the Field for Compaction Quality Assurance using Lightweight Deflectometer.” Annual Meetings of the Transportation Research Board, Washington DC, January 2019, Paper No. 19-01578 (w/ Z. Afsharikia).
“Stiffness-Based Compaction Quality Assurance Testing Using Lightweight Deflectometers.” Graduate Seminar, University of Pittsburgh, November, 2018.
“Structural Design of Porous Asphalt Pavements.” TRB Webinar, July, 2018 (w/ Kevin Hall; estimated 269 sites, 334 attendees).
“Pavement Structural Design” and “Standardizing Lightweight Deflectometer Modulus Measurements For Compaction Quality Assurance” Workshop on Mechanistic-Empirical Pavement Design and Construction. Monterrey, Mexico, June, 2018 (keynote addresses).
“Zen and the Art of Engineering Education.” Montana State University, April, 2018.
“Cold Recycled and Reclaimed Asphalt Concrete Properties for Pavement Design.” TRB Webinar, March, 2018 (estimated 261 sites, 364 attendees).
“Industry, Agency, and University Collaboration” 56th Maryland Asphalt Association – Maryland State Highway Administration Asphalt Paving Conference, Baltimore, March, 2018.
“Porous Asphalt Pavements—Not Just for Parking Lots Anymore!” Virginia Asphalt Association 2017 Fall Asphalt Conference, Richmond VA, October 2017.
“Stiffness-Based Compaction Quality Assurance Testing Using Lightweight Deflectometers.” Warren Lecture, University of Minnesota. October 2017.
“Sensitivity Analysis of Coefficients of Rut Transfer Function of MEPDG in AASHTOWare Pavement ME Software.” ASCE T&DI International Conference on Highway Pavements and Airfield Technology, Philadelphia PA, August 2017 (with I. Haider).
“Soils and Aggregates: The Foundations of Pavement Performance.” ASCE T&DI International Conference on Highway Pavements and Airfield Technology, Philadelphia PA, August 2017.
“New Pavement Engineering Technologies – The Long Term Pavement Performance Climate and Bind Tools.” TRB Webinar, August 2017 (with L. Wizer, R. Ahmad).
“MERRA Data to Support Pavement Performance Prediction.” NASA Goddard MERRA-2 Applications Workshop, Greenbelt MD, June 2017 (with B. Forman).
“Infrared Asphalt Repair.” County Engineers Association of Maryland Spring 2017 Conference, College Park MD, May 2017 (with M. Mussog).
“Some Thoughts on Improving Pavement Research Implementation.” Skok Distinguished Lecture, NRRA Pavements Conference 2017, St. Paul MN, May 2017.
Afsharikia, Z., Khosravifar, S. and Schwartz, C.W. “Compaction Quality Control Target Modulus Determination Using Light-Weight Deflectometer Drops on Proctor Mold.” Paper No. 17-06047, Annual Meetings of the Transportation Research Board, Washington DC, January 2017.
Bowers, B.F., Diefenderfer, B.K, and Schwartz, C.W. “Permanent Deformation Properties of In-Place Recycled Pavement Mixtures.” Paper No. 17-03642, Annual Meetings of the Transportation Research Board, Washington DC, January 2017.
“Development of Structural Design Guidelines for Porous Asphalt Pavements,” TRB Committee AFD60 – Flexible Pavement Design, Annual Meetings of the Transportation Research Board, Washington DC, January 2017 (with K. Hall)
“Soils and Aggregates: The Foundations of Pavement Performance,” Workshop on Unbound Aggregate Layer Characterization for Pavement Design and Performance, Annual Meetings of the Transportation Research Board, Washington DC, January 2017.
“Structural Characteristics and Environmental Benefits of Cold-Recycled Asphalt Paving Materials,” International and Western State In-Place Recycling Conference, Denver CO, October 2016.
“Structural Characteristics and Environmental Benefits of Cold-Recycled Asphalt Paving Materials,” National Pavement Preservation Conference, Nashville TN, October 2016.
“Soils and Aggregates: The Foundations of Pavement Performance.” Special Lecture, 3rd International Conference on Transportation Geotechnics, Guimaraes, Portugal, September 2016.
“Theme 5: Mechanistic-Empirical Design (Roads, Railways and Airfields).” Theme 5 Overview, 3rd International Conference on Transportation Geotechnics, Guimaraes, Portugal, September 2016.
“Structural and Environmental Benefits of Cold In-Place Recycled Pavement Materials.” Snead Distinguished Lecture, Texas A&M University, College Station TX, April 2016.
“Industry, Agency, University: The Role of Research.” 54th Annual MAA-SHA Paving Conference, Baltimore MD, March 2016.
“Earth Compaction Compaction Quality Assurance Testing Using Lightweight Deflectometers.” Invited Seminar, Ohio State University, Columbus OH, February 2016.
“Structural Properties and Predicted Performance of Cold In-Place Recycled Materials.” Workshop on Ensuring Long-Term Performance of Cold Recycled Mixtures, Annual Meetings of the Transportation Research Board, Washington DC, January 2016.
“Structural and Environmental Benefits of Cold In-Place Recycled Pavement Materials.” Workshop on Use of Byproduct Fines and Recycled Materials for Sustainable Construction of Transportation Infrastructure, Annual Meetings of the Transportation Research Board, Washington DC, January 2016.
“Sustainability of FSB Processes,” Pavement Preservation and Recycling Alliance (PPRA) 2015 Fall Meeting, Niagara Falls, ON, October 2015.
“Structural Characteristics and Environmental Benefits of Cold Recycled Asphalt Paving Materials.” Paul Kent Distinguished Lecture, University of Illinois, Urbana-Champaign, IL. April 2015.
“Climate Aspects of Mechanistic-Empirical Pavement Performance Prediction.” Workshop on Pavement Structures Behaviour and Deterioration in Cold Climate with Seasonal Variations, KTH (Royal Swedish Technical Institute), Stockholm, Sweden. April 2015.
“Quality Assurance of Earthwork Compaction.” Workshop on Advances in Quality Control and Quality Assurance in Road Constructions, Polytecnico di Torino, Italy. March 2015 (keynote address).
“Bituminous CIR and FDR Properties for Mechanistic-Empirical Pavement Design.” Pavement Preservation and Recycling Summit (PPRS 2015), Paris, France. February 2015.
“NCHRP 9-51: Material Properties of Cold In-Place Recycled and Full-Depth Reclamation Asphalt Concrete for Pavement Design.” Annual Meetings of the Transportation Research Board, January, 2015 (with B. Diefenderfer and B. Bowers).
“Advantages of Non-Symmetric Sigmoidal Function in Construction of Dynamic Modulus Master Curves of Asphalt Mixtures.” Annual Meetings of the Transportation Research Board, January, 2015 (with S. Khosravifar, A. Farzenah, and I. Haider).
“Infrared Asphalt Repair—A Better Option for You.” Lunch and Learn Seminar, Pavement Corporation, National Harbor, Washington DC, July, 2014.
“Climate Data for Mechanistic-Empirical Pavement Design.” 12th International Conference on Asphalt Pavements, Raleigh, NC, June with B.A. Forman and R. Li).
“Evaluation of MERRA Climatic Data for Use in MEDPG Calibration and Other Pavement Analyses.” TRB Expert Task Group on LTPP Special Activities, National Academy of Sciences, Washington DC, May 2014.
“Climate Data for Pavement Design.” NSF Infrastructure and Climate Network (ICNet) Workshop, Portsmouth NH, April 2014.
“Industry, Agency, University: The Role of Research.” MAA-SHA 52nd Annual Paving Conference, Baltimore MD, March 2014.
“Application of Time-Temperature Superposition Principal in Prediction of Cumulative Plastic Strain in Repeated Load Permanent Deformation Tests.” Annual Meetings of the Transportation Research Board, January 2014 (w/ S. Khosravifar and S.I. Haider).
“Standardizing Lightweight Deflectometer (LWD) Modulus Measurements for Compaction Quality Assurance.” FWD User Group Meeting, Baltimore, MD, October 2013.
“FASB Material Properties for Pavement Structural Design.” Recycled Materials Task Force Meeting, Maryland State Highway Administration, Hanover, MD, April 24, 2013.
“NCHRP 09-51: Material Properties of Cold In-Place Recycled and Full-Depth Reclamation Asphalt Concrete for Pavement Design.” Mid-Atlantic Quality Assurance Workshop, Williamsburg, VA, Febuary 5-7, 2013.
“Improved Climate Data for LTPP, MEPDG, and Other Infrastructure Applications,” Annual Meetings of the Transportation Research Board, Washington DC, January 2013.
“Implementing ‘Exotic’ Models into the MEPDG.” Annual Meetings of the Transportation Research Board, Washington DC, January 2013.
“NCHRP Project 09-51: Update.” Annual Meetings of the Transportation Research Board, Washington DC, January 2013. Also presented at committee meeting of AFD60 Flexible Pavement Design.
“Mechanistic Structural Properties of Foamed Asphalt Stabilized Base.” Annual Meetings of the Transortation Research Board, Washington DC, January 2013 TRB Annual Meetings (w/ S. Khosravifar and D.G. Goulias)
“Basics of Asphalt Modeling: Part 2.” Transportation Research Board Webinar, December 11, 2012. (130+ attendees)
“NCHRP 09-51: Material Properties of Cold In-Place Recycled and Full-Depth Reclamation Asphalt Concrete for Pavement Design.” Northeast State Materials Engineers Association (NESMEA) Annual Meeting, October 24, 2012, Philadelphia, PA.
“LTPP Climate Analysis Project.” Transportation Research Board Expert Task Group on Long Term Pavement Performance Program Special Projects, October 18, 2012, Washington DC (w/ G. Elkins).
“User’s Experience with AMPT: Maryland.” National Pooled Fund Workshop on the Asphalt Mixture Performance Tester, Atlanta GA, September 2012.
“Calibration and Precision of Alternate Rutting Models for the Mechanistic Empirical Pavement Design Guide.” Transportation Research Board Webinar, August 30, 2012. (110+ attendees)
“Sensitivity Evaluation of the MEPDG for Flexible Pavements,” TRB Webinar, July 2012 (approximately 330 participants).
“Sensitivity Evaluation of Mechanistic-Empirical Pavement Design,” AASHTO Joint Technical Committee on Pavements Annual Meeting, Louisville KY, May 2012.
“Sensitivity Evaluation of MEPDG Flexible Pavement Performance Predictions,” TRB Committee AFD60 Flexible Pavement Design, Washington DC, January 2012.