Pavements Team
About the team:
The Pavements Team conducts and applies research on innovative materials and methods to create pavement systems that are safe, sustainable, cost-effective, and environmentally responsible. VTRC researchers study the fundamentals of material and system behavior, applying these insights to improve long-term performance. Increasingly, the program addresses the environmental impacts of pavement construction, reconstruction, maintenance, and preservation. The team also collaborates with safety engineers and economists to connect pavement characteristics with broader societal costs, including crashes and fuel consumption.
Key focus areas include:
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Material and pavement system design 
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Recycling and reclamation 
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Construction quality assurance, acceptance, and payment 
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Structural and functional evaluation 
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Maintenance, preservation, and management 
The team is supported by the Pavement Research Advisory Committee (PaveRAC), which operates through four subcommittees that provide guidance in specialized technical areas.
- Pavement Preservation and Management
- Asphalt Plant Mix Performance and Construction
- Pavement Foundations, Rigid Components, and Recycling
- Pavement Design, Analysis, and Accelerated Testing
Current Pavements Projects
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  Pavement Structural Evaluation with Traffic Speed Deflection Devices (TSDDs) Pooled Fund Study TPF5-385Project No: 114421
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  Pavement Friction Management Program Implementation (Phase 3) - District-Level DeploymenProject No: 118900
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  I-64 Recycled Pavement MonitoringProject No: 122323
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  Reflective Crack Mitigation Strategies In Virginia - Performance ReviewProject No: 122357
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  Design Resilient Modulus for Coarse-Grained Subgrade SoilsProject No: 122364
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  Sustainable Surface Mixtures Incorporating Recycled Plastic Waste and High RAP ContentsProject No: 122604
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  Increasing Service Lives of Full Depth Reclamation TreatmentsProject No: 122696
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  FHWA Climate ChallengeProject No: 124057
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  Resilience Program: Preliminary Investigation of Bridge Scour Countermeasure and Mitigation Strategies in VirginiaProject No: 124060-RC00175
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  Evaluation of Moisture Susceptibility of Full-Depth Reclamation (FDR) MixesProject No: 124060-RC00181
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  Resiliency Assessment of Flood Damage in PavementsProject No: 124060-RC00191
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  Resilience Approaches for Pavements and Geotechnical AssetsProject No: 124157
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  Field Validation of Balanced Mix Design Initial CriteriaProject No: 124332
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  Developing a Balanced Mix Design (BMD) Framework for SBS Modified Dense-Graded Asphalt Surface Mixtures – Phase IProject No: 124333
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  Evaluation of Spray-on Rejuvenators - Field TrialsProject No: 124401
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  Ruggedness Study of Specimen Preparation and Fine-Tuning of Test Methods for IDT-CT and IDT-HTProject No: 124496
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  Implementation of Structural Data from Traffic Speed Deflection DevicesProject No: 124752
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  Establishing Polishing Values of Aggregates for Use in Surface Asphalt Mixtures – Laboratory EvaluationProject No: 124839
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  Documentation of 2024 Balanced Mix Design ImplementationProject No: 126084
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  Evaluation of Thick Lift Asphalt PavingProject No: 126213
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  Evaluating the Impact of Volumetric Properties and Reheating on the Balanced Mix Design Test ResultsProject No: 126581
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  Analysis of 2018-2024 Network Level Pavement Structural Testing with the TSDProject No: 126825
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  Field Performance of High RAP MixturesProject No: 126826
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  Verifying the Indirect Tensile at High Temperature (IDT-HT) Test Performance Criterion: A Multi-scale Investigation Integrating Laboratory, Full-Scale Accelerated Pavement Testing, and Field EvaluationsProject No: 127210
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  Use of Carbonate Aggregates in Pavement Preservation TreatmentsProject No: 127240
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  Evaluation of Cement Treated Aggregate (CTA) and Full-Depth Reclamation (FDR) In-Service Performance and Pavement Design InputsProject No: 127472
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  Local Calibration of AASHTOWare-ME Towards VDOT MEPDG Upgrade to Web-Based Version for New Pavement DesignProject No: 127475
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  Field Performance Assessment of Chip Seals with Updated Chip Seal Specification and Fog Seal TreatmentProject No: 127562
Team Leader
Hari Nair, Ph.D., P.E.
Associate Director for Pavements
Harikrishnan.Nair@VDOT.Virginia.gov(434) 293-1948
Team Members
- Andrew Barbour
- Brian K. Diefenderfer, Ph.D., P.E.
- Derek Lister
- Harikrishnan Nair, Ph.D., P.E.
- Ilker Boz, Ph.D., P.E.
- Jennifer L. Samuels
- Kazuo Kuchiishi, Ph.D.
- M. Shabbir Hossain, Ph.D., P.E.
- Stacey D. Diefenderfer, Ph.D., P.E.
- Troy H. Deeds
Last updated: August 14, 2025
