Deformation and Fracturing Behaviors of Sandstone Disc Containing a Circular Inclusion under Diametrical Compression: Insights from Integrated SG and DIC Experiments

Table 1

Physical and mechanical properties of the sandstones and cement mortars.

Properties	Red sandstone (ReS)	Grey sandstone (GrS)	Cement mortar-Type I (CM-I)	Cement mortar-Type II (CM-II)
Density (g/cm^3)	2.50	2.33	2.01	2.1
P-wave velocity (m/s)	2799	2317	1906	2240
Poisson’s ratio	0.27	0.33	0.22	0.25
Young’s modulus (GPa)	15.0	10.6	5.2	10.0
UCS (MPa)	73.2	29.3	13.2	31.6
Tensile strength (MPa)	5.85	1.86	1.31	4.83

Note. The abbreviation names for the materials are shown in parentheses for convenience.