EARLY HARDENING OF ASPHALTIC BINDER IN BITUMINOUS PAVEMENT MIXTURES

THE HARDENING RATES OF THE ASPHALTIC BINDER IN SEVERAL BITUMINOUS PAVEMENTS WERE MEASURED BY CHANGES IN PENETRATION AND VISCOSITY. DURING THE FIRST 30 DAYS OF THE PAVEMENT LIFE. COMPACTED SPECIMENS, CUT FROM THE PAVEMENTS, WERE STORED AT VARIOUS TEMPERATURES AND ENVIRONMENTS AND THE HARDENING WAS DETERMINED. A LIMITED INVESTIGATION WAS MADE ON THE EFFECT OF THE RATE OF COOLING ON THE HARDENING THAT HAD OCCURRED. FOR SOME PAVEMENTS THE HARDENING THAT OCCURRED IN THE FIRST 4 TO 10 DAYS OF PAVEMENT LIFE WAS EQUAL TO, OR GREATER THAN THE HARDENING THAT OCCURRED DURING MIXING. COMPACTED PAVEMENT SPECIMENS STORED IN THE AIR AT 10 F, OR UNDER WATER AT ROOM TEMPERATURE HARDENED LESS RAPIDLY THAN THOSE STORED IN AIR AT ROOM TEMPERATURE. THE TIME-TEMPERATURE HISTORY OF SAMPLES FROM THE TIME THE MIX LEAVES THE MIXER UNTIL EXTRACTION IS IMPORTANT IN DETERMINING HARDENING RESULTS. /AUTHOR/

  • Supplemental Notes:
    • Vol 4, No 1, PP 231-247, 7 FIG, 7 TAB, 5 REF
  • Corporate Authors:

    American Society for Testing and Materials

    100 Barr Harbor Drive, P.O. Box C700
    West Conshohocken, PA  USA  19428-2957
  • Authors:
    • BRIGHT, R
    • Justice, A
    • Steele, J
  • Publication Date: 1969-3

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Filing Info

  • Accession Number: 00211404
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 12 1970 12:00AM