IS 9143 : 1979 Method for the determination of unconfined compressive strength of rock materials

UDC 624.121.439.4 CED 48
Reaffirmed 2021

1 Scope

1.1 This standard covers the method for determination ofunconfined compressive strength of a rock sample in the form ofspecimens of regular geometry.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 1586 : 1968 Methodfor Rockwell hardness test (B and C scales) forsteel

IS 9179 : 1979 Methodfor the preparation of rock specimens forlaboratory testing