Abstract: This study investigated the microstructural evolution of two binders, Pen 60/70 and PG 76-22, modified with two warm mix asphalt (WMA) additives, Advera (PQ Corporation, Malvern, Pennsylvania) and Sasobit (Sasol Wax, ...

Abstract: This paper presents the development of new methods for measuring aggregate resistance to polishing, and degradation. These are important properties that influence pavement skid resistance and resistance to distresses under ...

Abstract: A procedure for constructing resin impregnated sand specimens for fabric (microstructure) analysis is presented. The impregnation device provides excellent control of the impregnation rate and confinement for different ...

Abstract: Hot mix asphalt (HMA) is a composite material that consists of mineral aggregates, asphalt binders, and air voids. A finite element model of the HMA microstructure is developed to study the influence of localized strain ...

Abstract: This study analyzed the influence of asphalt binder nanostructures and inherent variability on their mechanical responses. This was achieved by reconstructing asphalt binder nanostructures using generative adversarial ...

Abstract: Moisture damage in asphalt mixtures is defined as the gradual loss of structural integrity caused by the presence of moisture. A simple experimental procedure was developed in this study to measure water vapor diffusion ...

Abstract: A method is developed to assess hot mix asphalt (HMA) stability during compaction in the mix design process, and prior to conducting further expensive and time consuming testing. The method consists of a mathematical ...

Abstract: Increased loads on hot-mix asphalt (HMA) pavements have necessitated the development of new-generation asphalt mixture designs that rely on stone-on-stone contact among coarse aggregates in resisting and distributing applied ...