Asphalt Rubber Technology Information Center
An Evaluation of Dense Graded Asphalt-Rubber Concrete in Minnesota - Final Report
Author(s):
Turgeon, Curtis  
Origin:
Minnesota  
Date:
November, 1991  
Categories:
Performance  
Key Words:
Asphalt rubber  
Summary:
The Minnesota DOT is continually investigating ways to improve the cold temperature performance of its asphalt
concrete pavements.  One reported method is to modify the asphalt binder with ground performance of its asphalt
concrete pavements.  One reported method is to modify the asphalt concrete pavements.  One reported method is to
modify the asphalt binder with ground reclaimed automobile and truck tire rubber.  In 1984, a project on TH 7 was
selected for the field trial of an asphalt of an cement dense graded concrete utilizing a product produced by Arizona
Refining.  Interesting results regarding the resilient modulus of the asphalt rubber samples were found.  However, the
formulation used provided little or no perceived benefits to the roadway at much higher costs.  The high costs were due
in part to the nature of the project.  However, this appears to be a cumbersome and expensive procedure with the
primary benefit being waste tire utilization.
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