THE DYNAMIC STIFFNESS OF BITUMINOUS ROAD MATERIALS

THE OBJECT OF THIS RESEARCH WAS TO DETERMINE IF BITUMINOUS MATERIALS EXHIBIT STRESS-DEPENDANCE. UNCONFINED SINUSOIDAL LOADING COMPRESSION-TENSION TESTS WERE CARRIED OUT ON CYLINDRICAL SPECIMENS OF WEARING COURSE AND BASE COURSE ASPHALTS. STIFFNESS-STRESS RELATIONSHIPS, PHASE LAG, POISSON'S RATIO, AND AIR VOIDS EFFECT WERE DETERMINED. THE RESULTS SHOWED THE DYNAMIC STIFFNESS MODULUS TO BE STRESS- DEPENDENT. HOWEVER, IT IS NOTED THAT THIS NON-LINEAR EFFECT IS SMALL IN COMPARISON WITH TEMPERATURE-INDUCED STIFFNESS CHANGES. IS SMALL IN COMPARISON WITH TEMPERATURE-INDUCED STIFFNESS

• Authors:
  • Cragg, R
  • Pell, P S
• Conference:
  • Association of Asphalt Paving Technologists Proc
• Publication Date: 1971

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 126-47
• Serial:
  • Volume: 0

Subject/Index Terms

• TRT Terms: Asphalt; Asphalt tests; Dynamic modulus of elasticity; Elasticity (Mechanics); Flexible pavements; Stiffness tests
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00211746
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 15 1972 12:00AM