Field performance testing on the NCAT pavement test track
The primary objective of the research was to compare the performance of various mixes in the field as a function of actual truck traffic. In the closed loop facility, loaded axle passes and environmental effects were accurately documented and identical for every mix. In addition to comparing the performance of experimental mixes in the field, both fundamental and simulative testing was conducted in the laboratory to facilitate the development of models that predict rutting over time. Where limited testing on open roadways provides a snapshot picture of performance that is blurred by traffic and environmental uncertainties, weekly field performance testing on the 2000 NCAT (National Center for Asphalt Technology) Pavement Test Track provided a continuous view that can serve as the basis of models that are based upon seasonal rates of change. The deepest rutting measured on the track after the application of all design traffic was 7.2 mm. No sections required structural rehabilitation; however, several containing polishing aggregates were treated for low surface friction. Subsequent laboratory to field rutting correlation research will encompass both total depth and rate of change modeling efforts.
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Authors:
- Powell, R B
- Conference:
- Publication Date: 2003
Language
- English
Media Info
- Pagination: 39-50
- Monograph Title: Proceedings of the International Conference on Highway Pavement Data, Analysis and Mechanistic Design Applications, September 7-10 2003, Columbus, Ohio: volume 2
Subject/Index Terms
- TRT Terms: Mathematical models; Mix design; Pavement performance; Pavements; Rutting; Test procedures; Test tracks; Tests for suitability, service and quality
- ATRI Terms: Mix design; Modelling; Pavement performance; Pavement testing; Rutting; Test method; Test track
- Subject Areas: Highways; Pavements;
Filing Info
- Accession Number: 01390900
- Record Type: Publication
- Source Agency: ARRB
- Files: ATRI
- Created Date: Aug 23 2012 5:08AM