Pavement Design and CBR ProceduresThe California bearing ratio (CBR) is a penetration test for evaluation of the . the pressure required to achieve an equal penetration on a standard crushed rock . Determine the percent of compacted crushed stone values for the 0.1 and 0.2.cbr standard value for crushed stone,California Bearing Ratio | Pavement InteractiveAug 15, 2007 . The California Bearing Ratio (CBR) test is a simple strength test that . stone (thus, a high quality crushed stone material should have a CBR ). . Values obtained are inserted into the following equation to obtain a CBR value: . Standard Specifications for Transportation Materials and Methods of.
cbr standard value for crushed stone