PAVEMENT EVALUATION: TO EVALUATE THE EFFECT OF ASPHALT AGING ON PAVEMENT CONDITION

CURRENT RESEARCH BY THE MATERIALS DIVISION OF THE BUREAU OF PUBLIC ROADS IS CONDUCTED TO DETERMINE THE PROPERTIES OF ASPHALTS REPRESENTING A WIDE COVERAGE OF THE NATIONAL PRODUCTION AFTER AGING 11 TO 13 YEARS IN PAVEMENTS. IN ADDITION TO FORMS FOR RECORDING PAVEMENT CONDITION, DATA FORMS WERE DEVELOPED TO SYSTEMATICALLY COLLECT INFORMATION FROM AVAILABLE PROJECT CONSTRUCTION RECORDS THAT PERTAIN TO PAVEMENT DESIGN, MATERIAL PROPERTIES, CONSTRUCTION, MAINTENANCE, AND TRAFFIC. THE ORGANIZATION AND FUNCTION OF THIS SURVEY ARE DESCRIBED. THE RATING TEAMS WERE COMPOSED OF TWO PERMANENT MEMBERS AND TWO LOCAL MEMBERS -- ONE OF THE LATTER REPRESENTING THE STATE INVOLVED AND THE OTHER PUBLIC ROADS AT THE DIVISION OR REGION LEVEL. THE PROCEDURE FOLLOWED ON VISITING EACH STATE INVOLVED FIRST DISCUSSING THE PAVING PROJECT WITH THE LOCAL STATE HIGHWAY REPRESENTATIVES TO OBTAIN BACKGROUND INFORMATION RELATING TO MATERIALS, DESIGN CONSTRUCTION, TRAFFIC AND MAINTENANCE FROM AVAILABLE PROJECT FILES. THE FIRST STEP OF THE EVALUATION WAS TO MAKE A PRELIMINARY EXAMINATION OF THE PAVEMENT TO DETERMINE ITS GENERAL CONDITION AND TO DECIDE WHETHER CERTAIN PORTIONS OF THE PAVING PROJECT SHOULD BE EXCLUDED FROM THE SURVEY AS BEING NON-REPRESENTATIVE. A GENERAL APPRAISAL OF RIDING QUALITY WAS MADE BY EACH RATER FOLLOWING THE INDIVIDUAL PRESENT SERVICEABILITY RATING SYSTEM USED ON THE AASHO TEST ROAD. THE NEXT STEP WAS TO LOCATE THE SAMPLING AND SURVEY SITES. SIX RANDOM SAMPLE LOCATIONS WERE SELECTED FOR EACH PROJECT. THE FOLLOWING TYPES OF DISTRESS WERE EVALUATED AT EACH SAMPLE SITE AND THE DEFINITIONS ARE PRESENTED FOR EACH TYPE: RAVELLING, SPALLING, LOSS OF MATRIX, DISINTEGRATION OF AGGREGATE, RUTTING, CORRUGATION, TRANSVERSE CRACKING, REFLECTION CRACKING, LONGITUDINAL CONSTRUCTION JOINT CRACKS, LONGITUDINAL LOAD ASSOCIATED-CRACKS, SHRINKAGE CRACKS, POLYGON CRACKING, LADDER CRACKING, AND SEALING AND PATCHING. A SUBJECTIVE EVALUATION WAS MADE BY THE RATER ON THE ASPHALT EVALUATION: AMOUNT OF ASPHALT, SURFACE TEXTURE, AND DRAINAGE. THE LAST ITEM IS A SUBJECTIVE EXPRESSION OF THE OVERALL EVALUATION OF THE ENTIRE PROJECT

• Supplemental Notes:
  • Vol 38, pp 317-327, 5 FIG
• Authors:
  • Olsen, R E
  • Welborn, J Y
  • Vallerga, B A
• Conference:
  • Association of Asphalt Paving Technologists Proc
• Publication Date: 1969-2

Subject/Index Terms

• TRT Terms: Asphalt; Asphalt content; Condition surveys; Defects; Drainage; Evaluation; Pavement distress; Pavement performance; Pavements; Ratings; Riding qualities; Sampling; Surface course (Pavements); Texture
• Non-Preferred Terms: Serviceability
• Uncontrolled Terms: Serviceability Index
• Old TRIS Terms: Aging
• Subject Areas: Design; Highways; Hydraulics and Hydrology; Materials; Pavements;

Filing Info

• Accession Number: 00207099
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 27 1970 12:00AM