Requirements specific to California Bearing Ratio CBR test

(1) In situ tests may be carried out, but the laboratory test is the definitive procedure. (2) Tests may be carried out on either undisturbed or recompacted material. (3) The moisture content of the soil should be chosen to represent the design conditions for which the test results are required. (4) The CBR test should be carried out on material passing the 20 mm test sieve. If the soil contains particles retained on the 20 mm sieve, these particles should be removed and weighed before...