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Abstract

This test method covers the determination of the California Bearing Ratio (CBR) of pavement subgrade, subbase, and base/course materials from laboratory compacted specimens. The test method is primarily intended for but not limited to, evaluating the strength of cohesive materials having maximum particle sizes less than 19 mm (3/4 in.).
 

Document History

  1. AASHTO T 193-13


    Standard Method of Test for The California Bearing Ratio

    • Most Recent
  2. AASHTO T 193-10 (2010)


    Standard Method of Test for The California Bearing Ratio

    • Historical Version
  3. AASHTO T 193-99 (2003)

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    Standard Method of Test for The California Bearing Ratio

    • Historical Version