Finite element analysis of soil-structure interaction using higher order subgrade soil models;
Non-destructive testing of concrete slabs-on-grade;
Structural analysis and design of concrete pavements; development of mechanistic-empirical models to be used in predicting pavement distresses and damage;
Full-scale testing;
Application of neural networks to pavement engineering, mechanics of composite materials, and non-destructive testing
Structural engineering aspects of nonlinear fracture mechanics in brittle materials with emphasis on numerical modeling.