Asphalt Surface Aging Prediction (ASAP) System
The Asphalt Surface Aging Prediction (ASAP) project has been a 2.5 year effort to predict age-related embrittlement in asphalt pavement surfaces and to develop ground-based and airborne systems to measure key spectral indicators needed for prediction. The idea is to predict failure so that preemptive measures can be applied to the surface to extend the pavement life. Five tasks were involved in this effort. The first was concerned with determining the infrared spectral feature of aging asphalts that best correlate with physical properties of asphalts and with determining whether spectral manipulation methods could isolate the asphalt signature from aggregates. The second task examined field cores, mapped aging severity with depth, and examined surface aging. The third task developed a ruggedize fourier transform infrared spectrometer, an instrumentation vehicle, and supporting software to implement field analyses. At present the diffuse reflectance system does not provide sufficient signal, but modifications may be possible to correct the problem. The fourth and fifth tasks were to be field trials with completed systems.
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Corporate Authors:
Western Research Institute
365 North 9th Street
Laramie, WY United States 82072-3380Research and Innovative Technology Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 - Publication Date: 2010-9
Language
- English
Media Info
- Media Type: Web
- Edition: Final Report
- Features: Appendices; Figures; Photos; References; Tables;
- Pagination: 138p
Subject/Index Terms
- TRT Terms: Aging (Materials); Asphalt pavements; Core samples; Embrittlement; Forecasting; Fourier transforms; Infrared spectroscopy; Surface course (Pavements)
- Subject Areas: Highways; Pavements; I23: Properties of Road Surfaces;
Filing Info
- Accession Number: 01338798
- Record Type: Publication
- Contract Numbers: DTOS59-07-H-0006
- Files: TRIS, USDOT
- Created Date: May 3 2011 8:32AM