Experimental Study on High-Pressure Air Blasting Fracture for Coal and Rock Mass

Table 1

The physicomechanical parameters of the concrete specimen.

Parameters	Value	Unit
Young’s modulus, E	0.8	GPa
Poisson’s ratio, μ	0.23
Mass density, ρ	1500	kg/m^3
Uniaxial compressive strength	4.14	MPa
Uniaxial tensile strength	0.68	MPa