Thermal Deformation of Granite under Different Temperature and Pressure Pathways

Table 1

Parameters during heating experiment.

Thermal cycles	Maximum temperature (°C)	Heating rate (°C/min)	External pressure
1	350	2	σa = 8 MPa, σc = 5 MPa
2	640	3	σa = 8 MPa, σc = 5 MPa
3	300	3.5	σa = 8 MPa, σc = 0 MPa
4	600	5.5	σa = 8 MPa, σc = 0 MPa
5	600	3	σa = 8 MPa, σc = 0 MPa

Note: σ_a denotes axial stress and σ_c denotes confining stress.