To determine California Bearing Ratio value of soil by conducting load penetration test.
The California Bearing Ratio (CBR) test is a penetration test meant for the estimation of subgrade strength of roads and pavements. The results found by these tests are used with the empirical curves to find the thickness of pavement and its component layers. This is the most commonly used method for the design of flexible pavement. California Division of Highway developed CBR test as a method of classifying and evaluating soil-sub grade and base course materials for flexible pavements. An empirical test, the CBR test has been used to find the material properties for pavement design.