Abstract: Many state departments of transportation are currently shifting more acceptance sampling and testing responsibilities to contractors because of a shortage of personnel at highway agencies and intensive construction schedules. ...

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: This paper evaluates the relationship between the air void distribution in asphalt mixes and their moisture susceptibility. Asphalt mix specimens were prepared to have different air void distributions through using two ...

Abstract: Warm-mix asphalt (WMA) technologies aid in reducing mixing and compaction temperatures for asphalt concrete mixtures, allowing for savings in fuel consumption and extending haul distances and construction season. The reduced ...

Abstract: The majority of U.S. departments of transportation (DOT) maintain quality assurance (QA) programs that require asphalt binder testing to verify grade compliance according to Superpave performance grade (PG) specifications. ...

Abstract: Foamed asphalt binders are increasingly being used to produce warm mix asphalt. This paper presents the findings from a study conducted to (1) identify a repeatable and accurate method to characterize the quality of asphalt ...

Abstract: The use of high amounts of reclaimed asphalt pavement (RAP) in asphalt pavements has many economic and environmental benefits; however, there are concerns about brittleness and potential cracking of asphalt mixtures. One ...

Abstract: Warm-mix asphalt (WMA) technologies aid in reducing mixing and compaction temperatures for asphalt concrete mixtures, allowing for savings in fuel consumption and extending haul distances and construction season. The reduced ...