PERFORMANCE PREDICTION FOR LARGE-STONE MIXES USING THE REPETITIVE SIMPLE SHEAR TEST AT CONSTANT HEIGHT

Transfer functions have been developed that permit prediction of vertical rut depth versus equivalent single axle loads in situ using the repetitive simple shear test at constant height (RRST-CH). These transfer functions are based on statistical correlation of field performance and laboratory testing of field cores from Strategic Highway Research Program General Pavement Sections, with conventional binders and gradations and 19-mm (3/4 in.) maximum aggregate. A comparison is presented between measured field performance of large-stone mixes in situ and the performance predicted using the current RSST-CH transfer functions. Because of the larger aggregates contained in the mixes, the RSST-CH specimen diameter and height were increased to maintain a similar aspect ratio between the aggregate and specimen dimensions. New techniques for controlling specimen height during the test were also developed. The results of the comparison indicate that the RSST-CH and previously developed transfer functions are useful in predicting in situ rutting for large-stone mixes.

Language

  • English

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 46-52
  • Monograph Title: Hot-mix asphalt design, testing, evaluation, and performance
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00714832
  • Record Type: Publication
  • ISBN: 309061563
  • Files: TRIS, TRB
  • Created Date: Dec 4 1995 12:00AM