RELATIONSHIP OF MIX DESIGN TO HARDENING

DESIGN VARIABLES THAT HAVE A PROFOUND EFFECT ON PAVEMENT PERFORMANCE AND ON BINDER HARDENING IN BITUMINOUS PAVEMENTS ARE REVIEWED. THIN BINDER FILMS, SUCH AS THOSE OBTAINED WHEN THE ASPHALT CONTENT IS 1/2% LOW, MARKEDLY REDUCES THE LIFE OF PAVEMENT. THICKER BINDER FILMS OFFERING INCREASED DURABILITY MAY BE OBTAINED BY HARDER GRADES OF ASPHALT AT THEIR OPTIMUM CONTENTS AS DETERMINED BY FIELD PERFORMANCE. THE MORE OPEN-GRADED AGGREGATES OFFER MORE DURABLE SYSTEMS. VARIATIONS IN PAVEMENT COMPACTION AS INDICATED BY VOID CHANGES AS SMALL AS 1% RESULT IN MARKED HARDENING EFFECTS.

• Supplemental Notes:
  • Vol 27, pp 186-196
• Authors:
  • Krchma, L C
• Conference:
  • Assoc Asphalt Paving Technol Proc
• Publication Date: 1958

Subject/Index Terms

• TRT Terms: Asphalt content; Binders; Bituminous mixtures; Compaction; Concrete hardening; Hardness; Mix design; Open graded aggregates; Pavements; Service life; Thickness
• Old TRIS Terms: Pavement life
• Subject Areas: Design; Highways; Materials; Pavements;

Filing Info

• Accession Number: 00210849
• Record Type: Publication
• Files: TRIS
• Created Date: May 6 1994 12:00AM