Laboratory Testing on Energy Absorption of High-Damping Rubber in a New Bolt for Preventing Rockburst in Deep Hard Rock Mass

Table 1

Physical and mechanical parameters of high-damping rubber (provided by supplier).

Damping ratio	Stiffness	Tensile strength	Elongation at failure	Tear strength	Shear modulus	Density	Compression set value
15	75	17.22 MPa	436	80 N/mm	1.33 MPa	1.22 g/cm^3	<25%