A STUDY OF TENACITY OF AGGREGATES IN SURFACE TREATMENTS

A STUDY WAS MADE TO DEVELOP A TENACITY TEST FOR MEASURING CHIP RETENTION IN SURFACE TREATMENT. A LABORATORY PROCEDURE IS DESCRIBED FOR FORMING A MONOLITHIC STRUCTURE ON THE SURFACE OF A SIMULATED ROADBED MADE UP ON A METAL PANEL. THE AGGREGATE CHIPS WERE ENCAPSULATED ON THE SURFACE SO THAT THE ENTIRE MASS COULD BE PULLED AWAY FROM THE ROADBED AND THE STRENGTH OF THE BOND BETWEEN THE AGGREGATE AND THE ROADBED DETERMINED. TO KEEP EXPERIMENTAL WORK TO A MINIMUM THE NUMBER OF VARIABLES STUDIED HAVE BEEN LIMITED TO AGGREGATE AND ASPHALT SPREAD QUANTITY, THE TYPE, SIZE AND SIZE DISTRIBUTION OF THE AGGREGATE, AND CONSISTENCY OF THE ASPHALT. RESULTS COVER A NUMBER OF THESE VARIABLES BUT ARE NOT A COMPLETE SURVEY OF ALL OF THEM. TO REDUCE VARIABILITY OF RESULTS, TEST PROCEDURES WERE STANDARDIZED CAREFULLY AND ENOUGH SAMPLES WERE TESTED SO THAT STATISTICAL METHODS COULD BE USED WITH CONFIDENCE. ADDITIONAL VARIABLES STUDIED BY STATISTICAL TECHNIQUES INCLUDE' /A/ EFFECT OF MOISTURE AND DUST IN THE AGGREGATE, /B/ DIFFERENT OPERATORS, AND /C/ THE EFFECT OF AGING BEFORE TESTING. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1965/104/104-002.pdf
• Supplemental Notes:
  • 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.
• Authors:
  • Gartner Jr, William
• Publication Date: 1965

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References; Tables;
• Pagination: pp 18-35
• Monograph Title: Surface treatments, bituminous mixtures and pavements
• Serial:
  • Highway Research Record
  • Issue Number: 104
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregates; Asphalt; Bond strength (Materials); Bonding; Chippings; Consistency; Development; Dust; Encapsulation; Moisture content; Paint spreading rate; Physical distribution; Retaining walls; Simulation; Size; Statistical analysis; Subgrade (Pavements); Surface treating
• Old TRIS Terms: Aging; Chips; Determination; Retaining; Roadbed; Spreading rate; Tenacity test
• Subject Areas: Data and Information Technology; Freight Transportation; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00210280
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Sep 29 1994 12:00AM