This is the final report of an evaluation of an Asphalt-Rubber Binder Stress Absorbing Membrane Interlayer (SAMI) to control transverse, alligator and longitudinal cracking in the asphalt concrete overlay.
A control section consisting of a tack coat of CSS-1 applied to the existing pavement was used to compare against the Asphalt-Rubber SAMI and a paving grade asphalt SAMI.
Crack mapping for a period of 9 years disclosed the Asphalt-Rubber SAMI to perform slightly better than the paving grade asphalt and much better than the control.
August 30, 2007
Washington (State). Dept. of Transportation.
- # of Pages: 18 p., 253 KB (PDF)
- Subject: Alligator cracking, Asphalt concrete, Asphalt rubber, Bituminous binders, Demonstration projects, Energy absorbing materials, Longitudinal cracking, Overlays (Pavements), Performance, Stresses, Transverse cracking.
- Keywords: Asphalt-Rubber, SAMI, asphalt overlay, cracking, I-90, Grant County (Wash.)
- Related Publications:
This abstract was last modified April 29, 2008