FIELD APPLICATION OF THE RESILIENCE DESIGN PROCEDURE FOR FLEXIBLE PAVEMENT

SINCE 1960 THE CALIFORNIA DIVISION OF HIGHWAYS HAS BEEN UTILIZING PAVEMENT DEFLECTION MEASUREMENTS AS A GUIDE FOR THE DETERMINATION OF ADEQUACY OF EXISTING PAVEMENTS AND THE MAGNITUDE OF NECESSARY RECONSTRUCTION. IN ORDER TO INTRODUCE THE DEFLECTION FACTOR INTO FLEXIBLE PAVEMENT DESIGN AT THE PRELIMINARY STAGE, A DEVICE KNOWN AS THE RESILIOMETER WAS DEVELOPED BY THE MATERIALS AND RESEARCH DEPARTMENT. THIS PAPER REPORTS ON SUBSEQUENT STUDIES INITIATED FOR THE PURPOSE OF UTILIZING THE PAVEMENT DEFLECTION-RESILIENCE CORRELATION IN PRACTICAL DESIGN SITUATIONS. IT INCLUDES A DESCRIPTION OF THE DEVELOPMENT OF A METHOD OF SELECTING DESIGN MOISTURE CONTENT AND DENSITY OF PRELIMINARY SAMPLES AND ESTABLISHMENT OF A CURING PERIOD BETWEEN FABRICATION AND TESTING OF SENSITIVE SOILS. UPON ESTABLISHMENT OF THESE TEST CRITERIA, 40 SAMPLES FROM 20 DIFFERENT PROJECTS WERE TESTED AND ANALYZED UTILIZING DESIGN MOISTURE, DENSITY, AND CURING PERIOD. AFTER COMPLETION OF CONSTRUCTION, THE ROADWAYS SUBJEXT TO ANALYSES WERE TESTED FOR TRANSIENT DEFLECTION IN ORDER TO DETERMINE THE RELATIONSHIP BETWEEN PREDICTED AND ACTUAL FIELD DEFLECTION UTILIZING ESTABLISHED DESIGN CRITERIA. A COEFFICIENT OF CORRELATION OF 0.88 WITH A CONFIDENCE BAND RANGING FROM 0.78 TO 0.93 WAS OBTAINED. AVERAGING THE RESULTS OF TWO OR MORE SAMPLES FROM A SINGLE ROADWAY INCREASED THE CORRELATION COEFFICIENT TO 0.91. FIELD TRIAL DATA ARE PRESENTED ALONG WITH EXAMPLES OF THE DESIGN PROCEDURE.

• Supplemental Notes:
  • Preprint VoL, PP 277-290, 13 FIG, 1 TAB, 10 REF
• Authors:
  • BEATON, J L
  • Zube, E
  • Forsyth, R
• Conference:
  • Intl Conf Struct Design Asphalt Pvmts
• Publication Date: 1967-1

Subject/Index Terms

• TRT Terms: Concrete curing; Deflection; Density; Field tests; Flexible pavements; Measurement; Moisture content; Pavement design; Pavements; Resilience (Materials)
• Old TRIS Terms: Existing pavements; Pavement deflection
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00205481
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 1 1994 12:00AM