SOUTH DAKOTA CHIP SEAL COAT STUDY

THIS STUDY IS CONCERNED WITH THE COMPARISON AND EVALUATION OF CHIP SEAL COATS PLACED USING AN RS-2 EMULSIFIED ASPHALT, AN RC-4 CUTBACK ASPHALT AND SEVERAL RUBBERIZED RC-4 ASPHALTS. ALL COMPARISONS AND THE EVALUATION ARE BASED ON RATINGS DETERMINED BY THE SOUTH DAKOTA SEAL COAT EVALUATION PROCEDURE. THE RS-2 CHIP SEAL COATS DID NOT PERFORM AS WELL AS THE RC-4 AND RUBBERIZED PROJECTS. THE ADDITION OF RUBBER TO ASPHALT OF THE TYPE USED IN SOUTH DAKOTA FROM 1956 TO 1959 DOES NOT IMPROVE EITHER THE QUALITY OR LIFE EXPECTANCY OF CHIP SEALS. FOR THIS REASON RUBBERIZED ASPHALTS ARE NOT CONSIDERED TO BE ECONOMICALLY FEASIBLE AT THE PRESENT TIME. OTHER OBSERVATIONS CONCERNING CHIP SEAL PERFORMANCE WERE MADE DURING THE STUDY. IT IS CONCLUDED THAT CONSTRUCTION CONTROL, WEATHER, EQUIPMENT AND THE EXPERIENCE OF CONSTRUCTION PERSONNEL ARE VARIABLES WHICH APPARENTLY HAVE MORE PROFOUND EFFECTS ON A SEAL COAT THAN THE TYPE OF ASPHALT USED. /AUTHOR/

  • Corporate Authors:

    South Dakota Department of Highways

    Physical Research Section
    Pierre, SD  USA  57501
  • Authors:
    • Crawford, R A
  • Publication Date: 1967

Media Info

  • Features: Appendices; Figures; Tables;
  • Pagination: 43 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00211356
  • Record Type: Publication
  • Report/Paper Numbers: Final Report
  • Files: TRIS, STATEDOT
  • Created Date: Nov 15 2003 12:00AM