Rock Physics Labs

Test Apparatus

Triaxial Machines

Machine	Axial Stress (MPa)	Pc (MPa)	Pp (MPa)	Temp (°C)	Displacement Rate (µm/s)	Sample Dimensions
1	1100	500	200	Can add	.001 to 50	3”
2	None	500	200	Can add	.001 to 50	3”
3	1800	700	200	600	.001 to 20	1”
4	1800	600	200	600	.001 to 20	1.5”
5	1800	700	200	600	.001 to 20	1”

Other Machines

Machine	Normal Stress (MPa)	Displacement Rate	Shear Loading Rate	Sample
Rotary	0.4	1 µm/s to 1 m/s		15”
Direct Shear	150	.001 to 1000 µm/s		3”
2 meter press	8		.00001 to .01 MPa/s	1.5 x 1.5 m

Photos