PERFORMANCE STUDY OF TYPICAL VIRGINIA PAVEMENTS. PAVEMENT DESIGN AND PERFORMANCE STUDIES
THE PERFORMANCE OF IN-SERVICE TYPICAL VIRGINIA FLEXIBLE AND RIGID PAVEMENTS IN ALL AREAS OF THE STATE IS UNDER EVALUATION. THE OBJECTIVES ARE TO PROVIDE A READY REFERENCE FOR DESIGNERS AND FIELD ENGINEERS AND BACKGROUND INFORMATION FOR DESIGN IMPROVEMENT. PERIODIC DEFLECTION AND ROUGHNESS TESTS ARE CONDUCTED ALONG WITH FIELD INSPECTIONS. THE RECORDS MAINTAINED ON EACH PAVEMENT REFLECT CONDITION, TRAFFIC, CONSTRUCTION COSTS, AND MAJOR REPAIRS. MAJOR FINDINGS TO DATE ARE: (1) CEMENT STABILIZED SUBGRADES UNDER RECENTLY CONSTRUCTED FLEXIBLE PAVEMENTS HAVE VIRTUALLY ELIMINATED RUTTING AND OTHER MAJOR DISTORTIONS, (2) THE CUMULATIVE NUMBER OF TRAILER TRUCKS AND BUSES SUSTAINED BY A PAVEMENT UP TO A FIXED DEGREE OF CRACKING IS DIRECTLY RELATED TO THE RIGIDITY OF THE PAVEMENT AS DETERMINED FROM ANALYSIS OF THE DYNAFLECT DEFLECTION BASIN, (3) TERMINAL PSI AS DEFINED FROM THE AASHO ROAD TEST IS TOO INSENSITIVE FOR USE IN EVALUATING FLEXIBLE PAVEMENT PERFORMANCE IN VIRGINIA AND, (4) A CRACK FACTOR REFLECTING LONGITUDINAL AND PATTERN CRACKING APPEARS SATISFACTORY FOR USE IN PERFORMANCE EVALUATION OF VIRGINIA FLEXIBLE PAVEMENTS. /AUTHOR/
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Supplemental Notes:
- Progress Report PT NO 4 ON PHASE A, VHRC 70-R20, 44 PP, FIGS,
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Corporate Authors:
Virginia Highway Research Council
Charlottesville, VA United States -
Authors:
- McGhee, K H
- Publication Date: 1970-11
Media Info
- Pagination: 44p
Subject/Index Terms
- TRT Terms: Deflection; Design; Evaluation; Flexible pavements; Fracture mechanics; Improvements; Pavement design; Pavement performance; Plastic deformation; Roughness; Stiffness; Subgrade (Pavements); Testing
- Subject Areas: Design; Highways; Pavements;
Filing Info
- Accession Number: 00207275
- Record Type: Publication
- Report/Paper Numbers: VHRC 70-R20
- Files: TRIS
- Created Date: Jun 22 1971 12:00AM