IS 2720 : Part 31 : 1990 Methods of Test for Soils - Part 31 : Field Determination of California Bearing Ratio

UDC 624.131.383 CED 43
Reaffirmed 2020

1 Scope

1.1 This Indian Standard (Part 31) covers the method for thedetermination of the bearing ratio (generally known as theCalifornia bearing ratio) of soils in place for the evaluation ofstrengths of sub-grade and bases for roads and runaway pavements.

2 References

IS2720Methods of test for soils

Part 2 :1973 Determination of water content

Part 11 :1971 Determination of the shear strengthparameters of aspecimen tested in unconsolidated undrained triaxialcompression without the measurement of pore waterpressure

Part 16 :1987 Laboratory determination of CBR

Part 28 :1974 Determination of dry density of soilsin-place, by thereplacement method

Part 29 :1975 Determination of dry density of soilsin-place, by thecore cutter method

IS 2809 :1972 Glossary of terms and symbolsrelating to soilengineering