Investigation of the use of recycled polymer modified asphalt binder in asphalt concrete pavements
Document Type
Conference Proceeding
Publication Date
12-1-2003
Abstract
The potential concerns associated with recycling of PMACs were addressed. A styrene-butadiene-styrene PMAC was selected and characterized using typical asphalt binder qualification techniques. Procedures were developed to separate the PMAC into its asphalt resin and polymer additive components as well as to characterize the relative concentrations of each component. Infrared and thermogravimetric spectrographic techniques were used to identify the changes in the components as a result of aging. The impact of the extraction and recovery process on binder properties was ascertained and found to be minimal. An eight year old polymer modified asphalt binder was recovered from a wearing course mixture located on route US61 in Livingston Parish, Louisiana. The field aged binder was characterized with respect to its composition and rheological properties. Blends of virgin PMAC and US61 recovered binder were prepared and analyzed.
Publication Source (Journal or Book title)
Asphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions
First Page
551
Last Page
594
Recommended Citation
Mohammad, L., Negulescu, I., Wu, Z., Daranga, C., Daly, W., & Abadie, C. (2003). Investigation of the use of recycled polymer modified asphalt binder in asphalt concrete pavements. Asphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions, 72, 551-594. Retrieved from https://repository.lsu.edu/textile_pubs/158