A DETERMINATION OF THE SHEAR STRENGTH PROPERTIES OF BITUMINOUS MIXTURES BY THE USE OF TENSION AND UNCONFINED COMPRESSTON TESTS

THE PAPER PRESENTS THE HEWITT METHOD FOR EVALUATING THE SHEAR STRENGTH PROPERTIES OF BITUMINOUS MIXTURES QUICKLY AND ACCURATELY. A GENERAL DISCUSSION OF THE THEORY OF DESIGN USING SHEAR STRENGTH PROPERTIES IS PRESENTED IN ORDER TO BRING OUT THE IMPORTANCE OF THESE PROPERTIES. THREE MIX DESIGN METHODS, THE HEWITT, HVEEM AND 50-BLOW MARSHALL, WERE INVESTIGATED AND COMPARED AT VARIOUS TEMPERATURES AND RATES OF LOADING. A DISCUSSION OF THE BASIC DESIGN THEORY FOR EACH METHOD IS INCLUDED AND CORRELATIONS OF PROPERTIES BY THE THREE METHODS ARE SHOWN. SUGGESTIONS ARE MADE REGARDING DESIGN CRITERIA BY EACH METHOD AND IT IS CONCLUDED THAT THE HEWITT METHOD PROVIDES THE DESIGN ENGINEER WITH A MEANS OF DETERMINING THE BEARING CAPACITY OF MOST MIXTURES. FINALLY, SOME DESIGN CONSIDERATIONS REGARDING THE USE OF BEARING CAPACITY AS DETERMINED BY THE HEWITT METHOD ARE DISCUSSED AND A SAFETY FACTOR IS DEVELOPED CONSIDERING DEFORMATIONS AND LATERAL RESTRAINING PRESSURES. /NAPA/

• Supplemental Notes:
  • Vol 33, pp 363-405
• Authors:
  • Herkenhoff, P G
  • Housel, W S
  • Harvey, R T
  • Speer, T L
• Conference:
  • Assoc Asphalt Paving Technol Proc
• Publication Date: 1964-2

Subject/Index Terms

• TRT Terms: Alternatives analysis; Bearing capacity; Bituminous mixtures; Design; Mix design; Shear strength; Tension tests
• Uncontrolled Terms: Design criteria; Marshall mix design
• Old TRIS Terms: Bearing capacities; Hewitt method; Hveem design method; Unconfined compression tests
• Subject Areas: Design; Highways; Materials;

Filing Info

• Accession Number: 00210290
• Record Type: Publication
• Source Agency: National Asphalt Pavement Association (NAPA)
• Files: TRIS
• Created Date: Mar 24 1994 12:00AM