Imad L. Al-Qadi

TL;DR: In this article, a nonlinear anisotropic three-dimensional (3D) finite-element pavement model was used to simulate the granular base layer and predict viscoelastic pavement responses under moving vehicular loading.

TL;DR: In this article, a ground-penetrating radar (GPR) survey with multiple sets of 1 and 2 GHz air-horn antennae was conducted at the Transportation Technology Center, Inc. (TTCI) in Pueblo, Colorado.

TL;DR: In this paper, an innovative extended common mid-point (XCMP) method using two air-coupled ground penetrating radar (GPR) systems was developed to improve the accuracy of the traditional method for pavement material dielectric constant estimation.

TL;DR: In this article, the authors evaluated the environmental and economic benefits and trade-offs of using recycled materials in pavements using a life-cycle approach, and found that without proper modification and engineering of mix designs (e.g., addition of a softer grade virgin asphalt binder), AC mixtures with high ABR can experience reduced fatigue life.

TL;DR: In this paper, a laboratory study was conducted to evaluate the performance of APCCC under control conditions, including stability, indirect tensile strength, compressive strength, resilient modulus, water sensitivity, freezing and thawing, and chloride intrusion resistance.