WARPING STRESSES AND DEFLECTIONS IN CONCRETE PAVEMENTS' PART III

THE ROLE OF THEORETICAL ANALYSES IN THE DEVELOPMENT OF RELIABLE DESIGN CRITERIA FOR CONCRETE PAVEMENTS IS REVIEWED. AVAILABLE THEORIES ARE EXAMINED IN THE LIGHT OF PERFORMANCE RECORDS. AS THE UNDERLYING ASSUMPTIONS ARE INCOMPLETE, THE USEFULNESS OF THESE THEORIES IS LIMITED; MOREOVER, THE CONCEPTS INVOLVED HAVE RESTRICTED PLANNING OF FIELD EXPERIMENTS TO THE POINT WHERE SIGNIFICANT VARIABLES HAVE NOT BEEN MEASURED, WITH THE RESULT THAT INTERPRETATION OF THE DATA IS CONFUSED AND THE FINDINGS INCONCLUSIVE. A THEORY IS PRESENTED WHICH ACCOUNTS FOR WARPING PRODUCED BY NON-LINEAR TEMPERATURE AND MOISTURE VARIATIONS OF SUFFICIENT MAGNITUDE TO RESULT IN A PARTLY SUPPORTED SLAB, AND THE SUBGRADE SUPPORT CHARACTERISTICS ARE GENERALIZED TO INCLUDE TIME-DEPENDENT DEFORMATIONS. THE BEHAVIOR OF CONCRETE PAVEMENTS PREDICTED BY THIS THEORY IS FOUND TO BE COMPATIBLE WITH FIELD PERFORMANCE; ITS USE AS A BASIS FOR DESIGNING MORE SIGNIFICANT FIELD EXPERIMENTS IS RECOMMENDED. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 1-24
  • Monograph Title: Concrete pavement design
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00206204
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Feb 20 1994 12:00AM