Date of Graduation
2005
Document Type
Thesis
Degree Type
MS
Committee Chair
John P. Zaniewski
Abstract
West Virginia currently uses the Superpave mix design method for high traffic volume roads and the Marshall method for other highways. This research evaluated the differences between these methods for asphalt concrete wearing course materials; Marshall Wearing I and Superpave 9.5 mm. Mixes were developed for light, medium and heavy traffic using 100 percent limestone and a blend of limestone and natural sand aggregates. Asphalt Pavement Analyzer evaluation demonstrated the mixes developed under either method have similar rutting potential. The optimum asphalt content of the mixes varied between the Marshall and Superpave methods. There was not a consistent trend that would favor one method. Relaxation of the Fine Aggregate Angularity requirement for low traffic volume Superpave allows the use of a high percent of sand. It was demonstrated that use of high percent of sand in a mix results in a mix with high rutting potential.
Recommended Citation
Nelson, Jason W., "Comparison of 9.5 mm Superpave and Marshall Wearing I mixes in West Virginia." (2005). Graduate Theses, Dissertations, and Problem Reports (ETD). 10902.
https://researchrepository.wvu.edu/etd/10902