DYNAMIC MODULUS OF ASPHALT CONCRETE IN TENSION AND TENSION- COMPRESSION AND DISCUSSION

TEST PROCEDURES WERE DEVELOPED TO MEASURE THE DYNAMIC MODULUS OF ASPHALT CONCRETE IN TENSION AND IN TENSION--COMPRESSION. THE PROCEDURES ARE SIMILAR TO THOSE FOR DETERMINING THE DYNAMIC MODULUS AND PHASE LAG IN COMPRESSION. THE ASPHALTIC CONCRETE MIXES STUDIED WERE MADE WITH A DENSE-GRADED AGGREGATE AND TWO ASPHALT CEMENT CONSISTENCIES. IT WAS FOUND THAT BETWEEN DYNAMIC TENSION OR TENSION-COMPRESSION MODULI ON THE ONE HAND AND THOSE OF DYNAMIC COMPRESSION ON THE OTHER, DIFFERENCES ARE INSIGNIFICANT FOR TERMPERATURES OF 40--70 F AND LOADING FREQUENCIES OF 1--16 CPS, WHILE AT 70--100 F AND 1 CPS THE FORMER AVERAGE 1/2--2/3 THOSE OF THE LATTER. DIFFERENCES FOR PHASE LAG TENDED TO BE PRONOUNCED.

• Supplemental Notes:
  • Vol 39, pp 1-23, 15 FIG, 4 TAB, 9 REF
• Authors:
  • Kallas, B F
• Conference:
  • Association of Asphalt Paving Technologists Proc
• Publication Date: 1970

Subject/Index Terms

• TRT Terms: Asphalt concrete; Compression tests; Deformation curve; Dynamic modulus of elasticity; Tension tests
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00211633
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 1 1971 12:00AM