Asphalt Rubber Technology Information Center
Evaluation of Two Rubber Modified Asphalt Pavements Constructed in Benton County, OR
Hicks, R.G. and Zhou, Haiping, Transportation Research Institute  
May, 1988  
Key Words:
rubber-modified asphalt concrete, modulus, pavement performance  
A rubber-modified asphalt mixture using granulated and graded crumb rubber was developed in Sweden in the 1960’s.  
This product has been used in the United States since the 1970’s.  The mixture is intended to provide a surface wearing
course with improved properties as compared to conventional asphalt concrete mixtures.  These properties include
noise reduction, improved fatigue properties, better skid resistance, and a deicing ability.  To aid in the evaluation of this
product, Benton County and the City of Corvallis, Oregon, undertook demonstration projects to evaluate the use of these
mixtures on county roads.  This paper documents the evaluation of these two projects.  The investigation included both
laboratory and field evaluations.
© 2015 - Rubber Pavements Association (RPA). All rights reserved.