A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Trinidad Lake Asphalt Overlay Performance Final Report
The higher flexibility of an orthotropic deck causes pavement placed upon it to fatigue and crack more quickly than pavement placed on a normal roadway. The HMA overlay placed on the new bridge incorporated Trinidad Lake Asphalt (TLA) to help resist the stresses of an orthotropic deck. The performance of the overlay after eight years of traffic was disappointing. Problems with the mix design, achieving specified densities, temperature differentials, and issues with the paver resulted in a pavement with a higher than desired void content. The result was severe rutting caused by raveling in the wheel paths possibly exacerbated by wear from studded tires. Cracking and delamination, the initial concern which prompted the use of the TLA modified HMA, were not a problem on the bridge deck. As a result of the severe raveling, consideration is being given to the use of a conventional HMA when replacement of the deck wearing surface becomes necessary.
Trinidad Lake Asphalt Overlay Performance Final Report
The higher flexibility of an orthotropic deck causes pavement placed upon it to fatigue and crack more quickly than pavement placed on a normal roadway. The HMA overlay placed on the new bridge incorporated Trinidad Lake Asphalt (TLA) to help resist the stresses of an orthotropic deck. The performance of the overlay after eight years of traffic was disappointing. Problems with the mix design, achieving specified densities, temperature differentials, and issues with the paver resulted in a pavement with a higher than desired void content. The result was severe rutting caused by raveling in the wheel paths possibly exacerbated by wear from studded tires. Cracking and delamination, the initial concern which prompted the use of the TLA modified HMA, were not a problem on the bridge deck. As a result of the severe raveling, consideration is being given to the use of a conventional HMA when replacement of the deck wearing surface becomes necessary.
Trinidad Lake Asphalt Overlay Performance Final Report
M. Russell (author) / J. S. Uhlmeyer (author) / K. Anderson (author) / D. Luhr (author) / B. Dias (author) / J. Weston (author)
2014
77 pages
Report
No indication
English
Structural Analyses , Construction Equipment, Materials, & Supplies , Transportation , Civil, Construction, Structural, & Building Engineering , Materials Sciences , Coatings, Colorants, & Finishes , Tacoma Narrows Bridge , Trinidad Lake Asphalt (TLA) , Orthotropic bridge deck , Hot mix asphalt (HMA) , Evaluation , Overlay coatings , Performance , Fatigue (Materials) , Performance characteristics , Construction practices
Evaluation of Trinidad Lake Asphalt Overlay Performance
| NTIS | 2008
Laboratory Evaluation of Trinidad Lake Asphalt
| NTIS | 1985
Production of asphalt from trinidad lake
| Engineering Index Backfile | 1919
Vom Trinidad Lake Asphalt und seiner Verwendbarkeit
TIBKAT | 1937