DETERMINATION OF REMAINING FLEXIBLE PAVEMENT LIFE. VOLUME III. PREDICTED FLEXIBLE PAVEMENT REMAINING LIFE INTERPRETED FROM VARIOUS ANALYTICAL PROCEDURES
The objective of the report was to determine the remaining life of three Maryland highway pavements from various analytical design methods. Remaining pavement life was determined from both a functional (performance) viewpoint and structural (cracking) viewpoint. Extensive laboratory tests were done to determine conventional material properties as well as dynamic elastic responses of each component layer. Crack surveys were made on each pavement to quantify the physical state of distress. Measured laboratory properties were used in a theoretical multilayered analysis to predict fatigue cracking repetitions from cumulative damage theory by the Pell and Brown, Monismith, Kentucky Highway, The Asphalt Institute and Shell Oil fatigue relationships. Remaining damage predictions for each pavement were also made using the AASHTO design method in both a "conventional" and "limiting layer" analysis as recommended by NCHRP 128. It was concluded that the best agreement between measured cracking distress and predicted fatigue life occurred with the Monismith criteria. For all pavement sections considered, the critical or controlling design repetitions by the AASHTO procedure was associated with the "limiting layer analyses". The relationship developed between structural and functional failure was found to be in excellent agreement with other published values.
- See also Volume 2, PB-296563 and Volume 4, PB-296565. Prepapred for Maryland State Highway Administration, Brooklandville. Also available in set of 4 reports, PB-296561-SET.
University of Maryland, College ParkDepartment of Civil and Environmental Engineering
College Park, MD United States 20742
Brooklandville, MD United States 21022
Washington, DC United States 20590
- Witczak, M W
- Bell, K R
- Publication Date: 1978-10
- Pagination: 426 p.
- TRT Terms: Analysis; Cracking; Defects; Design methods; Deterioration; Dynamic modulus of elasticity; Failure; Fatigue (Mechanics); Flexible pavements; Fracture mechanics; Laboratory tests; Maintenance; Pavement cracking; Pavement distress; Pavement performance; Pavements; Performance tests; Service life; Structural analysis
- Uncontrolled Terms: Crack propagation
- Geographic Terms: Maryland
- Old TRIS Terms: Analytical method; Pavement life
- Subject Areas: Design; Highways; Maintenance and Preservation; Pavements;
- Accession Number: 00197623
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: FHWA/MD/R-79/3 Final Rpt.
- Files: NTIS, TRIS, USDOT, STATEDOT
- Created Date: Aug 28 1979 12:00AM