Abstract: Developing new and efficient methods to simulate the aging of asphalt binders and mixtures continues to be an important area of research for the asphalt community around the world. Temperatures exceeding pavement service ...

Abstract: Adhesion between asphalt binder and aggregate in a dry state as well as in the presence of water is critical to the performance and durability of asphalt mixtures. According to the literature, distress mechanisms in asphalt ...

Abstract: Moisture damage in asphalt concrete pavements is a major cause for high maintenance costs of state and federal highways. Moisture damage in asphalt concrete is largely due to loss of adhesion between bitumen and aggregate, ...

Abstract: This paper presents the findings from a study conducted to develop a simple quantitative test method to characterize the stability of asphalt emulsions. The proposed method uses electrokinetic techniques to determine the ...

Abstract: The use of foamed asphalt binder to produce warm-mix asphalt has increased significantly during the past few years. It is recognized that (1) foaming characteristics of the binder influence the workability of the asphalt ...

Abstract: Several different modifiers are increasingly being used to improve the performance of asphalt binders (e.g., polymers) or to promote environmentally friendly technologies (e.g., warm-mix asphalt, ground tire rubber, and ...

Abstract: The chemical composition of a bitumen dictates its rheological properties as well as its performance in an asphalt mixture. Any bitumen comprises a wide variety of complex hydrocarbons, and its chemical composition can be ...

Abstract: This paper semiquantitatively evaluates the microrheological properties of asphalt binder using atomic force microscopy. It also presents differences between these properties amongst the various microstructures within an ...

Abstract: The ability to quantify adhesion based on surface energies of the bitumen and aggregate components enables selection of compatible materials and quantitative assessment of moisture susceptibility. Reliable surface energy ...

Abstract: The combined effect of moisture and mechanical loading on asphalt mixtures has been recognized as one of the main causes of premature deterioration of flexible pavements. This paper presents a micromechanical model of ...