| Title | Vermont Demonstration Project: Warm-Mix Asphalt Overlay Rehabilitation of U.S. 4A and VT 30 |
|---|---|
| Record ID | 79002 |
| Personal Name Creator |
Von Quintus, Harold L.; Mallela, Jagannath |
| Personal Name Contributor |
Lord, Byron; Huie, Mary |
| Corporate Creator | Applied Research Associates, Inc. |
| Corporate Contributor |
United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure |
| Publisher | United States. Federal Highway Administration |
| Publication Date | 20130601 |
| Language | English |
| Abstract | As part of a national initiative sponsored by the Federal Highway Administration under the Highways for LIFE program, the Vermont Agency of Transportation was awarded a $1 million grant to demonstrate the use of multiple innovative but proven strategies for rehabilitating segments of U.S. 4A and VT 30 near and through Castleton. The three strategies used on the project include warm mix-asphalt (WMA), the Safety EdgeSM, and intelligent compaction. Two other innovative strategies were also used during construction: an infrared bar for monitoring the mat temperature behind the paver and a longitudinal construction joint specification to improve joint performance. This report details the use of multiple strategies to rehabilitate these routes. Use of the Safety Edge increased safety by making it easier for vehicles that drift off the roadway to return. Use of WMA reduced the time needed for the mat temperature to drop below 140 °Fahrenheit, reducing queue length and the number of vehicles in the queue. More important, use of intelligent compaction increased the uniformity of the mat density and resulted in slightly higher mat densities, increasing the service life of the overlay. |
| Rosap ID | dot:54342 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/54342 |
| TRT Terms | Demonstration projects; Compaction; Infrared detectors; Longitudinal joints; Hot mix asphalt; Instruments for measuring density |
| Geographical Coverage |
United States; Vermont |
| TRIS Online Accession No |
1576095 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/79000/79000/79002/vt_wma_rehabilitation_us4a_vt30.pdf |
| Format | |
| Database | NTL Digital Repository |