California Bearing Ratio, a load-bearing test for pavement subbases.

This test is used by Caltrans for pavement design, replacing the California bearing ratio test.

General fill material should be free of organics, meet minimum California bearing ratio (CBR) results and have a low plasticity index.

The California bearing ratio (CBR) is a penetration test for evaluation of the mechanical strength of road subgrades and basecourses.