USE OF EMULSIFIED ASPHALT IN BASE STABILIZATION

STABILIZED SANDS ARE BEING USED FOR SUBBASE, BASE COURSE, AND ASPHALT SURFACE COURSE IN COLORADO. MC-AND RC- CUTBACK ASPHALTS, ASPHALT CEMENT OF VARIOUS PENETRATION GRADES, EMULSIFIED ASPHALTS, PORTLAND CEMENT AND HYDRATED LIME ARE BEING USED AS STABILIZING AGENTS. SINCE EMULSIFIED ASPHALT HAS BECOME AVAILABLE TO PLANTS IN COLORADO, THE LARGEST VOLUME OF SAND STABILIZATION IS OF THIS TYPE. THE LARGEST SINGLE USE HAS BEEN FOR STABILIZATION OF DUNE SAND FOR SUBBASE UNDER PORTLAND CEMENT CONCRETE PAVEMENT. FOR THIS PURPOSE, THE STABILIZED MATERIAL MUST NOT ONLY BE CAPABLE OF SERVING AS A SUBBASE UNDER THE COMPLETED PAVEMENT, BUT MUST ALSO BE CAPABLE OF SUPPORTING THE SLIP-FORM PAVER, THE HEAVILY LOADED BATCH TRUCKS, AND OTHER EQUIPMENT USED DURING CONSTRUCTION OPERATIONS. CONSTRUCTION METHODS ARE REVIEWED. IT IS CONCLUDED THAT THE USE OF EMULSIFIED ASPHALT HAS ENABLED ECONOMIC UTILIZATION OF LOCAL SANDS AS BASE COURSE FOR ASPHALT SURFACING, AND AS SUBBASE FOR PORTLAND CEMENT CONCRETE PAVEMENT.

  • Supplemental Notes:
    • 7 Pp, 4 Fig
  • Corporate Authors:

    University of Colorado, Denver

    1100 14th Street
    Denver, CO  USA  80202
  • Authors:
    • Lowrie, C R
  • Publication Date: 0

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Filing Info

  • Accession Number: 00232503
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 15 2004 2:30AM