Experimental Study on Mechanical Properties of Prefabricated Single-Cracked Red Sandstone under Uniaxial Compression

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Parameters</td><td class="align_center">Values</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Minimum radius of the particle (mm)</td><td class="align_center">0.2</td></tr><tr><td class="align_left">Particle size ratio</td><td class="align_center">1.5</td></tr><tr><td class="align_left">Particle density (kg.m<sup>−3</sup>)</td><td class="align_center">2400</td></tr><tr><td class="align_left">Particle friction coefficient</td><td class="align_center">0.4</td></tr><tr><td class="align_left">Parallel bond modulus (GPa)</td><td class="align_center">35</td></tr><tr><td class="align_left">Parallel bond stiffness ratio</td><td class="align_center">1.5</td></tr><tr><td class="align_left">Normal bond strength (MPa)</td><td class="align_center">50 ± 5</td></tr><tr><td class="align_left">Tangential bond strength (MPa)</td><td class="align_center">50 ± 5</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Mesoparameters of the red sandstone for PFC2D simulation.</div>

Advances in Civil Engineering

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Table 3

Table 3: Experimental Study on Mechanical Properties of Prefabricated Single-Cracked Red Sandstone under Uniaxial Compression 