A COMPREHENSIVE STRUCTURAL DESIGN FOR STABILIZED PAVEMENT LAYERS

A SYSTEM IS PRESENTED WHICH CAN BE USED FOR THE STRUCTURAL DESIGN OF STABILIZED PAVEMENT LAYERS. THE BASIS FOR THE SYSTEM IS PRIMARILY THE PREVENTION OF TENSILE FAILURES IN THE SURFACE AND SUBBASE LAYERS OF A THREE-LAYER PAVEMENT STRUCTURE AND CAN BE APPLIED TO TAKE FULL ADVANTAGE OF THOSE HIGHWAY MATERIALS WHICH POSSESS COHESION, OR TENSILE STRENGTH. THE DESIGN SYSTEM IS COMPOSED OF A SERIES OF DESIGN EQUATIONS AND SEVERAL TECHNIQUES FOR CHARACTERIZING THE PROPERTIES OF THE MATERIALS PROPOSED FOR USE IN THE PAVEMENT LAYERS. LINEAR ELASTIC LAYERED THEORY WAS USED IN THE DEVELOPMENT OF DESIGN EQUATIONS FOR COMPUTING TENSILE STRESS AND STRAIN IN THE SURFACE AND SUBBASE LAYERS AND COMPRESSIVE STRAIN IN THE SUBGRADE. SEPARATE EQUATIONS WERE DEVELOPED FOR THE DESIGN OF HIGH MODULUS PORTLAND CEMENT CONCRETE RIGID PAVEMENTS AND FOR THE DESIGN OF FLEXIBLE PAVEMENTS AND LOW MODULUS PORTLAND CEMENT CONCRETE PAVEMENTS. PROCEDURES FOR PROPER APPLICATION OF THE DESIGN EQUATIONS ARE PRESENTED AND INCLUDE A METHOD FOR SELECTION OF A CRITICAL DESIGN THICKNESS AND PRACTICAL SOLUTIONS OF THE DESIGN EQUATIONS THROUGH THE USE OF NOMOGRAPHS. CHARACTERIZATION TECHNIQUES ARE ALSO PROVIDED FOR ESTIMATING MATERIAL PROPERTIES AS WELL AS LIMITING DESIGN CRITERIA FOR THE MATERIALS PROPOSED FOR THE VARIOUS PAVEMENT LAYERS. BASED ON THE RESULTS OF LABORATORY TESTS, THE INDIRECT TENSILE TEST IS RECOMMENDED AS THE PRINCIPAL METHOD OF CHARACTERIZING THE HIGHWAY MATERIALS IN THE LABORATORY. ALSO, A TECHNIQUE IS PRESENTED FOR ESTIMATING THE DESIGN-STRESS CRITERIA, BASED ON INDIRECT TENSILE TEST RESULTS AND REPEATED LOADING CONSIDERATIONS. IN ADDITION, MINIMUM DESIGN-STRAIN CRITERIA ARE RECOMMENDED FOR VARIOUS COHESIVE HIGHWAY MATERIALS. A SPECIAL CHARACTERIZATION TECHNIQUE IS PROVIDED FOR THE DESIGN OF ASPHALTIC MATERIALS FOR WINTER AND SUMMER TEMPERATURE CONDITIONS. THE APPLICATION OF THE TOTAL DESIGN SYSTEM TO THE STRUCTURAL DESIGN OF VARIOUS TYPES OF SUBBASE LAYERS IS ILLUSTRATED IN THREE EXAMPLE PROBLEMS. /AUTHOR/

  • Corporate Authors:

    University of Texas, Austin

    Center for Highway Research, 200 West 21st Street
    Austin, TX  USA  78712
  • Authors:
    • Hadley, W O
    • Hudson, W R
    • Kennedy, T W
  • Publication Date: 1972-8

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 203 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00206072
  • Record Type: Publication
  • Report/Paper Numbers: No 98-13
  • Files: TRIS
  • Created Date: Aug 20 1973 12:00AM