IS 13047 : 1991 Method for Determination of Strength of Rock Materials in Triaxial Compression

UDC 624.121.439.4                                            CED48

Reaffirmed 2021

1 Scope

1.1 This standard covers the method for determination of strength of cylindrical rock specimens subjected to triaxial compression. This test provides Individual points on the failure (peak strength) envelope from several tests. From this the value of the internal friction angle Φ and the apparent cohesion C may be obtained.

1.2 This standard does not cover (a) the multiple failure state test, and (b) the continuous failure state test wherein the failure envelope is produced with a single test employing a stepwise or continuous procedure.

2 References

IS 1586 : 1968 Methods for Rockwell hardness test (B and C scales)

IS 9179 : 1979 Method for preparation of rock specimen for laboratory testing