Abstract: In 1999, a 9.5 mm nominal maximum size hot-mix asphalt mixture, designed according to the Superpave mixture design method, was placed as an overlay on Indiana State Road 38. Within one year of construction, the pavement ...

Abstract: In this study, the effect of aggregate gradation on asphalt mixture compactability was investigated. Based on different combinations of coarse and fine aggregates, four gradation zones were defined: coarse pack, coarse ...

Abstract: Highway agencies seek the participation of the private sector in pavement preservation, to raise revenue, share risks, and reduce project delivery costs. With public-private partnerships (PPP) representing an increasingly ...

Abstract: Pavement rehabilitation is one of the most critical and costly forms of infrastructure asset management. Yet determining the subsequent performance of rehabilitated pavements is a complex task, particularly when multiple ...

Abstract: The percentage of Americans living in urban areas increases every year. This movement of people away from rural areas can reduce economic activity and lower quality of life in small communities. Because of the subjectivity ...

Abstract: Transportation agencies worldwide have been preparing themselves to face the growing demand for transportation infrastructure by forming public-private partnerships (PPP), contractual agreements formed between public and ...

Abstract: This research identified factors influencing the accuracy and variability of pavement surface evaluations and ratings (PASER). Survey and PASER data obtained from workshop participants were used to develop statistical ...

Abstract: An analytical model was developed to describe the influence of silica fume on the mechanical behavior of ultra-high-performance concrete. The model defines a single parameter, tpaste, which estimates the thickness of paste ...

Abstract: For years researchers and practitioners alike in the pavements and materials industry have been performing forensic analyses to determine the origin of hot-mix asphalt pavement permanent deformation (rutting) failures. The ...