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 s
AASHTO T 193-1999 history
1970AASHTO T 193-2017 Standard Method of Test for The California Bearing Ratio
2013AASHTO T 193-2013 Standard Method of Test for The California Bearing Ratio
2010AASHTO T 193-2010 Standard Method of Test for The California Bearing Ratio
1999AASHTO T 193-1999 Standard Method of Test for the California Bearing Ratio