A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Evaluation of Asphalt-Rubber Interlayers. (Revised)
The report presents the field performance results of three asphalt-rubber interlayer test roads in terms of the effectiveness of the interlayer at reducing the rate of reflection cracking. Several variables were included in the field experiments: concentration of rubber, binder application rate, type or source of rubber, and digestion (or mixing) time of asphalt and rubber. Control sections were made up of no interlayer and interlayer binders of polymer-modified asphalt and conventional asphalt cement. Results of the statistical analyses of the data indicated that, in general, asphalt-rubber interlayers are more effective at reducing reflection cracking than no interlayer at all. Asphalt-rubber also peerformed better than control sections composed of asphalt cement interlayers and polymer-modified interlayers except in one case where the interlyaer was composed of a double application of asphalt cement/aggregate. The data also indicated that higher binder application rates lead to imnproved cracking resistance; however, on many test sections, excessively high binder application rates caused flushing at the pavement surface.
Evaluation of Asphalt-Rubber Interlayers. (Revised)
The report presents the field performance results of three asphalt-rubber interlayer test roads in terms of the effectiveness of the interlayer at reducing the rate of reflection cracking. Several variables were included in the field experiments: concentration of rubber, binder application rate, type or source of rubber, and digestion (or mixing) time of asphalt and rubber. Control sections were made up of no interlayer and interlayer binders of polymer-modified asphalt and conventional asphalt cement. Results of the statistical analyses of the data indicated that, in general, asphalt-rubber interlayers are more effective at reducing reflection cracking than no interlayer at all. Asphalt-rubber also peerformed better than control sections composed of asphalt cement interlayers and polymer-modified interlayers except in one case where the interlyaer was composed of a double application of asphalt cement/aggregate. The data also indicated that higher binder application rates lead to imnproved cracking resistance; however, on many test sections, excessively high binder application rates caused flushing at the pavement surface.
Evaluation of Asphalt-Rubber Interlayers. (Revised)
C. K. Estakhri (author) / O. Pendleton (author) / R. L. Lytton (author)
1994
71 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Transportation , Transportation & Traffic Planning , Solid Wastes Pollution & Control , Pavements , Highway construction , Performance tests , Asphalt , Rubber , Road materials , Binders , Statistical analysis , Highway maintenance , Tires , Waste recycling
Performance Evaluation of Crumb-Rubber Modified Asphalt Interlayers
| British Library Conference Proceedings | 1994
User's Guide: Asphalt Rubber and Geotextile Interlayers
| NTIS | 1992