Asphalt Rubber Technology Information Center
Experimental Project Using Rubber Asphalt Membrane to Retard Reflection Cracking
Author(s):
Meadors, Alan  
Origin:
Arkansas  
Date:
July, 1986   
Categories:
Performance  
Key Words:
Asphalt-rubber, SAM, SAMI, cracking   
Summary:
An asphalt rubber membrane was used as a stress absorbing membrane (SAM) and as a stress absorbing membrane
interlayer (SAMI) over a jointed concrete pavement. This project is located on Interstate 30 in Little Rock. Approximately
5 years after the asphalt rubber membrane was placed, the project was surveyed with the following results:
1. The control section showed 25% of the joints has reflected through.
2. The SAM section averaged 25% joint reflection.
3. The SAMI section averaged 20% joint reflection.

The results indicate that the use of a SAM and/or SAMI was not effective in retarding joint reflection cracking.
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