DESIGN OF SUBSURFACE AND SURFACE AGAINST DETRIMENTAL COMPACTION AND SHEAR IN THE FINISHED STRUCTURE

A CONCEPT IS PRESENTED FOR DESIGN OF NEW PAVEMENTS OR EVALUATION OF EXISTING PAVEMENTS ENCOMPASSING REQUIREMENTS FOR COMPACTION TO EQUILIBRIUM UNDER THE ANTICIPATED VERTICAL STRESSES IN EACH STRUCTURAL MEMBER, /I.E., SUBSURFACE AND SURFACE LAYERS/ AND AVOIDANCE OF DETRIMENTAL SHEAR IN ANY MEMBER OF THE PAVEMENT. A FACTOR OF SAFETY WITH REGARD TO SHEAR FAILURE, IS EXPRESSED AS THE RATIO OF SHEAR STRENGTH, AT AN APPROPRIATELY SELECTED VALUE OF STRAIN, TO THE THEORETICAL MAXIMUM SHEAR STRESS IS INTRODUCED. ILLUSTRATIVE EXAMPLES ARE GIVEN IN WHICH GYRATORY TESTING MACHINE /GTM/ IS USED TO EVALUATE THE COMPACTION AND SHEAR CHARACTERISTICS OF THE VARIOUS STRUCTURAL ELEMENTS, INCLUDING AN ILLUSTRATION OF THE USE OF THE GYRATORY TESTING MACHINE /GTM/ SHEAR DATA IN THE ORIGINAL PRANDTL FORMULA TO PERDICT THE BEARING RESISTANCE VS SHEAR STRAIN RELATIONSHIP FOR THE SURFACE COURSE OF A FLEXIBLE PAVEMENT. /AUTHOR/

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  • Serial:
    • Issue Number: 0

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Filing Info

  • Accession Number: 00231143
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 15 2004 2:41AM