Imad L. Al-Qadi

TL;DR: In this article, a major study of reflective cracking of asphalt overlays that are used in conjunction with interlayer systems for reflective-crack control was recently completed at the Illinois Center for Transportation.

TL;DR: In this paper, an advanced 3D finite element (FE) model for pavement was validated using four pavement sections and good agreement was noted between the FE analysis results and pavement field instrument responses to loading, especially for vertical pressures and horizontal tensile strains in the transverse direction.

TL;DR: In this paper, the effect of chloride contamination of reinforced portland cement concrete (PCC) on its complex permittivity over low radio frequencies (RF) range (0.1-40.1 MHz).

TL;DR: In this article, the performance of different in situ instrumentations used in flexible pavement, including strain gages, pressure cells, geophones, and single-layer deflectometers, was compared with the calculated response using a multi-layered elastic model.

TL;DR: In this paper, the performance and structural condition of nine flexible pavement test sections built in Bedford County, Virginia, have been monitored over the past 5 years using FWD, and the deflection basins obtained from the testing have been analyzed using the ELMOD backcalculation program to find the pavement structural capacity and to detect changes in the aggregate resilient modulus.