In response to the need to improve asphalt pavement performance, the Strategic Highway Research Program (SHRP) was initiated in 1987. Products from SHRP included performance-based specifications for asphalt binders and performance-based specifications for asphalt binders and performance-based design tests and criteria for asphalt mixtures. The Superpave asphalt binder specification addresses performance of in-service pavements for given environmental and traffic conditions. During the 1985 paving season in Indiana, the original asphalt binder and HMA (truck mix samples) from a number of pavements were sampled and retained. Cores were also taken from these pavements after seven or eight years of service. Condition surveys were performed on these pavements, prior to coring. The study objectives were directed toward characterizing the original and extracted/recovered asphalt binders from the field samples using Superpave system, including short (RTFO) and long-term (PAV) aging.
Second Phase Study of Changes in In-Service Asphalt. Volume 1. Main Report
2000
204 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Materials Degradation & Fouling , Asphalts , Asphalt pavements , Hot mix paving mixtures , Aging(Materials) , Specifications , Pavement wear , Performance tests , Loads(Forces) , Road materials , Highway maintenance , Test methods , Binders , Design criteria , Recommendations , Tables(Data) , Stiffness , Fatigue life , Rheometers , SUPERPAVE
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