FIELD AND LABORATORY INVESTIGATION ON TRAFFIC PAINTS

SAMPLES OF TRAFFIC PAINTS REPRESENTING THE SPECIFICATION MATERIALS OF EIGHT DIFFERENT STATES, SELECTED TO COVER A WIDE RANGE OF TYPE AND COMPOSITION, WERE OBTAINED AND APPLIED IN THE FIELD AT SIX DIFFERENT LOCATIONS IN THE VICINITY OF LAFAYETTE, INDIANA. OLD CONCRETE, NEW CONCRETE, AND BITUMINOUS SURFACES OF DIFFERENT WIDTHS WERE USED. THE PAINTS WERE APPLIED WITH BOTH BRUSH AND SPRAY GUN AS TRANSVERSE LINES, AS A CENTERLINE, AS OBEDIENCE LINES ON A CURVE, AND WERE ALSO APPLIED AT A LOCATION WHERE THEY WERE SUBJECTED TO THE ACTION OF WEATHER ONLY. THE PAINTS WERE GIVEN A DURABILITY RATING ON THE BASIS OF VISUAL INSPECTION IN THE FIELD SUPPLEMENTED BY A KODACHROME-SLIDE RECORD. THE COMPLETED TESTS INCLUDE THOSE FOR THE CHARACTERISTICS OF THE PAINT--SETTLING, MOBILITY, HIDING POWER, WEIGHT PER GALLON, DRYING PROPERTIES, PIGMENT, AND VOLATILE AND NON-VOLATILE CONTENT; AND TESTS FOR THE CHARACTERISTICS OF THE DRY FILM-- PIGMENT VOLUME, ABRASION LOSS, WATER AND ALKALI RESISTANCE, AND DEGREE OF FLEXIBILITY. SPECIAL ATTENTION HAS BEEN GIVEN TO THE ABRASION AND FLEXIBILITY TESTS. THE DORRY HARDNESS ABRASION TEST HAS BEEN MODIFIED TO GIVE MORE REPRODUCIBLE RESULTS. A METHOD IS PRESENTED FOR DETERMINING THE DEGREE OF FLEXIBILITY OF A TRAFFIC-PAINT FILM. IN GENERAL, THE DURABILITY OF THE PAINTS WAS INDEPENDENT OF THE METHODS OF APPLICATION WHICH WERE USED. IT WAS OBSERVED THAT, IN THE FINAL ANALYSIS, ALL PAINTS FAILED ON CONCRETE BY LOSING BOND WITH THE SURFACE (SCALING) EVEN THOUGH SOME OF THE PAINTS WERE SUBJECTED TO A LONG PERIOD OF WEAR BEFORE FAILURE TOOK PLACE. THOSE PAINTS WHICH SHOWED EARLY FAILURE BY SCALING AT ONE LOCATION DID SO AT EACH WHERE THEY WERE INCLUDED IN ROAD TESTS ON CONCRETE, WHILE THE BEST PAINTS OF THE GROUP WERE CONSISTENTLY THE BEST UNDER EACH TYPE OF ROAD SERVICE. THE MODIFIED WET ABRASION AND WATER RESISTANCE TESTS HAVE SHOWN A POSITIVE CORRELATION WITH THE FIELD DATA. /AUTHOR/

  • Supplemental Notes:
    • Vol 21, pp 233-259, 12 FIG, 5 TAB, 12 REF
  • Authors:
    • Goetz, W H
    • Skett, A
    • Herbert, M S
    • Shuger, L W
  • Publication Date: 1942

Media Info

  • Monograph Title: Proceedings of the Twenty-First Annual Meeting of the Highway Research Board Held at the Johns Hopkins University, Baltimore, Maryland, December 2-5, 1941
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00217104
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Sep 27 1971 12:00AM