Engineering the Materials Behind Modern Infrastructure

Transportation Materials research focuses on understanding and improving the materials and structures that make up the single largest public infrastructure investment in the United States, asphalt pavement network.

At NC State, researchers combine experimental investigation, mechanistic modeling and systems-based analysis to improve durability, sustainability and long-term performance. This work connects fundamental material science with real-world infrastructure challenges.

Research Focus

Transportation Materials research advances the science and engineering of asphalt materials and pavements through integrated, multiscale approaches.

Researchers investigate the physical and chemical mechanisms that govern material behavior, developing models that treat asphalt concrete as a complex system of interacting materials across scales.

This work bridges laboratory characterization with practical mixture design and performance modeling, with a strong emphasis on sustainability and durability. Current research includes increasing the use of recycled materials without compromising long-term performance, as well as evaluating the life-cycle impacts of pavement systems.

Through interdisciplinary collaboration and applied research, this work produces implementable solutions that enhance the resilience and sustainability of transportation infrastructure.

Why It Matters

Transportation infrastructure depends on materials that can withstand time, traffic and environmental conditions. This research helps:

• Extend the lifespan of pavements and roadways
• Improve performance under real-world conditions
• Reduce environmental impact through sustainable materials
• Enable more resilient and cost-effective infrastructure systems

Asphalt Materials and Testing Laboratory

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Faculty and Contacts

The primary contact for the Transporation Materials group is Prof. Cassie Castorena.

• Eleni Bardaka
• Danjue Chen
• Ali Hajbabaie
• Youngsoo Richard Kim
• George List
• Shane Underwood
• Billy Williams

Courses and Academic Pathways

For all degree programs, consult with your advisor to construct the course plan that best meets your research and career goals.