DEFLECTION STUDY OF FLEXIBLE PAVEMENT OVERLAYS

THIS STUDY INDICATES THAT IT IS NOT PRACTICAL TO GENERALIZE AND CONCLUDE THAT A PARTICULAR BITUMINOUS OVERLAY THICKNESS WILL PROVIDE A CONSTANT PERCENTAGE DEFLECTION REDUCTION FACTOR. EACH SECTION IS AN INDIVIDUAL PROBLEM AND HAS TO BE ANALYZED ACCORDINGLY. HOWEVER, THE NEGATIVE REDUCTIONS IN BENKELMAN BEAM DEFLECTIONS, WHICH OCCURRED CONSISTENTLY ON THE ROADWAYS WHICH WERE STRONG INITIALLY, PROMPT THE RECOMMENDATION THAT THESE SUFFICIENTLY STRONG FLEXIBLE PAVEMENTS WILL NOT BENEFIT, STRENGTHWISE, FROM A BITUMINOUS OVERLAY. IN THE CASE WHERE THE DEFLECTION BEFORE OVERLAY IS 0.050 IN OR LESS, THE ROADWAY CAN BE CONSIDERED STRUCTURALLY ADEQUATE.

  • Supplemental Notes:
    • INVESTIGATION NO 630
  • Corporate Authors:

    Minnesota Department of Highways

    ,    
  • Authors:
    • Fingalson, W A
    • Robinson, T D
  • Publication Date: 1973

Media Info

  • Pagination: 29 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00207617
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Apr 20 1974 12:00AM