Evaluation of Pavement Performance and Condition
Using Numerical Simulation
Asphalt Concrete (AC) is a multiphase heterogeneous material with aggregates, mastic, and binder as its primary constituents. Its responses depend on the complex interaction between these phases. To avoid untimely rehabilitation or reconstruction and to ensure that the AC survives the design life, it is important to understand the interaction between different phases of AC under various loading conditions. In addition, evaluation of the pavement condition through non-destructive tests is also important for developing an effective maintenance schedule.
This webinar will discuss the benefits of:
- Using a Multiscale Finite Element Model (MsFEM) with Phase Field Fracture (PFF) to study the damage and fracture propagation at the AC microstructure.
- Application of a Finite Difference Time Domain (FDTD) and machine learning-based algorithm to backcalculate the thickness and dielectric constants of individual AC lifts from Ground Penetrating Radar (GPR) scans.
Speaker – Zafrul Khan
Zafrul Khan is a staff civil engineer 1 in the Research & Technology Deployment Group. He has experience in non-destructive evaluation and numerical modeling of pavement, field instrumentation, nanomechanical characterization of pavement materials, and machine learning.