EFFECTS OF FIELD AGING ON FUNDAMENTAL PROPERTIES OF PAVING ASPHALTS
AN EXTENSIVE 30-MONTH FIELD AND LABORATORY STUDY HAS BEEN COMPLETED ON PAVING-GRADE ASPHALTS SUBJECTED TO 11 TO 13 YEARS OF SERVICE IN 53 HIGHWAY PAVEMENTS LOCATED THROUGHOUT THE UNITED STATES. DURING THE CONSTRUCTION SEASONS OF 1954-1956, THE BUREAU OF PUBLIC ROADS ACCUMULATED MORE THAN 300 ASPHALT RETAIN SAMPLES FROM MORE THAN 285 IDENTIFIABLE CONSTRUCTION PROJECTS IN 37 STATES. THSES ORIGINAL ASPHALTS WERE CONSIDERED REPRESENTATIVE OF THE PRODUCTION OF 130 ASPHALTS OF KNOWN SOURCE FROM 100 ASPHALT REFINERS. DURING THE YEARS, THESE ORIGINAL RETAIN SAMPLES HAVE BEEN TESTED EXTENSIVELY. IN 1967, THE PRESENT STUDY WAS INITIATED WITH A FIELD SURVEY TO RATE THE PERFORMANCE OF ASPHALTS FROM A PRESELECTED NUMBER OF SURVIVOR AND NONSURVIVOR PROJECTS AND TO TAKE STATISTICALLY SELECTED SAMPLES OF THE PAVEMENTS FOR LABORATORY RECOVERY AND ANALYSES OF THE FIELD-AGED ASPHALTS. THE IMMEDIATE OBJECTIVES WERE TO DETERMINE THE OVERALL CHANGES THAT HAD OCCURRED IN THE ASPHALTS AS A RESULT OF CONSTRUCTION AND MORE THAN 10 YEARS OF SERVICE IN PAVEMENTS AND TO RELATE THESE CHANGES TO LABORATORY-MEASURED FUNDAMENTAL PROPERTIES OF THE ORIGINAL AND RECOVERED ASPHALTS. THE 13 STUDIES UNDERTAKEN ARE DESCRIBED AND REPORTED IN THIS PAPER, SIGNIFICANT RELATIONSHIPS AND CORRELATIONS ARE DEVELOPED, AND FINDINGS AND CONCLUSIONS ARE PRESENTED. /AUTHOR/
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Supplemental Notes:
- Sponsored by Committee on Characteristics of Bituminous Materials and presented at the 50th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
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Authors:
- Vallerga, B A
- Halstead, W J
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Conference:
- 50th Annual Meeting of the Highway Research Board
- Location: Washington District of Columbia, United States
- Date: 1971-1-18 to 1971-1-22
- Publication Date: 1971
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 71-92
- Monograph Title: Asphaltic concrete pavements and constituent materials
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Serial:
- Highway Research Record
- Issue Number: 361
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Asphalt; Bituminous materials; Field studies; Laboratory studies; Mechanical properties
- Old TRIS Terms: Aging
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 00211711
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Apr 17 1972 12:00AM