Stress-relieving interlayers for bituminous resurfacings
Abstract
The effectiveness of stress relieving interlayers (SRIs) in reducing reflective cracking in bituminous overlays on flexible pavements was investigated. SRI test sections were installed in 1980 and 1981 at five locations comprised of both 1 and 2-1/2 in overlays. Before construction, cracks were mapped in detail and deflection was measured to determine causes of cracking. SRIs tested included full width nonwoven and woven fabrics, rubberized asphalt surface treatments, reinforced rubberized asphalt strips, and composite fiberglass-asphalt binder systems. Construction of these test installations is summarized. Results of annual surveys have yet to prove conclusively the value of using these materials or their comparative effectiveness.
- Publication:
-
Interim Research Report New York State Dept. of Transportation
- Pub Date:
- April 1984
- Bibcode:
- 1984nysd.rept.....F
- Keywords:
-
- Bitumens;
- Construction;
- Cracking (Fracturing);
- Glass Fibers;
- Interlayers;
- Pavements;
- Stress Relieving;
- Asphalt;
- Fabrics;
- Maintenance;
- Thermal Stresses;
- Engineering (General)