A STUDY OF TRANSLUCENT ASPHALTIC FILMS

THIN FILMS OF ASPHALTIC MATERIALS HAVE BEEN WEATHERED NATURALLY AND ARTIFICIALLY AND THEN STUDIED MICROSCOPICALLY BY TRANSMITTED LIGHT. ONE REACTION, DESIGNATED AS COAGULATION, OCCURS IN SOME POSITIVE OLIENSIS SPOT TEST MATERIALS UNDER NEARLY ALL TEST CONDITIONS. OBSERVATIONS AND SOLUBILITY CHARACTERISTICS INDICATE THE COAGULATED FILM, AT ITS FORMATION TIME, TO BE COMPOSED OF A DISPERSED SOLID PHASE AND A CONTINUOUS LIQUID PHASE. THIS REACTION IS BELIEVED TO BE VERY IMPORTANT IN THAT IT GIVES A METHOD OF DETERMINING THE COMPATIBILITY OF AN ASPHALT MIXTURE. OTHER CHARACTERISTICS SUCH AS HARDENING, CHECKING, WRINKLING, FLOCCULATION, PRECIPITATION, AND THE FORMATION OF WAXY BODIES HAVE BEEN OBSERVED MICROSCOPICALLY. PHOTOMICROGRAPHS OF THESE ASPHALTIC FILM CHARACTERISTICS ARE PRESENTED. /AUTHOR/

  • Supplemental Notes:
    • Vol 17, ParT I, PP 368 - 383, FIG, 4 TAB, PHOT
  • Authors:
    • Benson, J R
  • Publication Date: 1938

Media Info

  • Monograph Title: Proceedings of the Seventeenth Annual Meeting of the Highway Research Board Held at Washington, D.C. November 30, December 1, 2, 3, 1937. Part I
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00211548
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 15 1971 12:00AM