DIAMETRAL TESTS FOR BITUMINOUS MIXTURES. FINAL REPORT

The first objective of this report was to provide details on various tests performed on core specimens under a Federal Highway Administration (FHWA) research study entitled "Performance Evaluation of Sulfur-Extended Asphalt Pavements - Laboratory Evaluation". This study is documented in report FHWA-RD-90-110. Under this study, 15 cores were obtained from various sulfur-extended asphalt (SEA) pavement sections and asphalt control (AC) sections and tested for properties in the laboratory. This report presents the experience with each particular test apparatus used in the SEA study. The diametral (resilient) modulus test and the diametral incremental creep test were extensively evaluated. The susceptibility to damage by moisture was evaluated in accordance with American Society for Testing and Materials (ASTM) Method D 4867. These tests have also been used under various other FHWA studies. The second objective was to correlate various test properties to each other and determine the relationships between them. Properties were taken from the following tests: (1) diametral (resilient) modulus, (2) diametral incremental creep modulus and deformations, (3) indirect tensile strength, (4) Marshall stability and flow, (5) diametral fatigue life, (6) density, (7) maximum specific gravity, and (8) percent air void level. Most relationships were poor or could only be considered general trends. Each test measures a unique property. Properties from sophisticated tests could not be predicted from less complex tests. Surrogate tests were not found. For example, fatigue life could not be predicted directly from tensile strength.

  • Corporate Authors:

    Federal Highway Administration

    Turner-Fairbank Highway Research Center, 6300 Georgetown Pike
    McLean, VA  United States  22101
  • Authors:
    • Stuart, K D
  • Publication Date: 1992-1

Media Info

  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 143 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00621615
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-RD-91-083, NCP 2E1f1012
  • Files: TRIS, USDOT
  • Created Date: Apr 30 1992 12:00AM