Experimental sections were constructed using asphalt for base stabilization. The projects were confined to park access, secondary, and arterial highways where the loading was relatively light and the traffic density minimal. The asphalt-soil bond was very sensitive to destruction by water, which proved to be one of the chief construction problems. Laboratory and field tests showed that well graded soil materials produced superior results such as ease of mixing and aeration, lower asphalt requirements, improved density/stability, and better water tightness. Extensive drying of the sand asphalt material to the proper moisture content prior to laying and compaction resulted in a very sharp increase in costs. If excessive reworking of the soil asphalt material took place, it was noted that the mix became "deadened". This condition was generally corrected by a further application of emulsified asphalt to rejuvenate the mix sufficiently to bond the individual soil particles.

  • Authors:
    • Wells, W F
  • Publication Date: 1972

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00096461
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 13 1975 12:00AM