Research Article

Effect of High Temperature (600°C) on Mechanical Properties, Mineral Composition, and Microfracture Characteristics of Sandstone

Table 4

Brazil split test results.

Specimen no.R (mm)B (mm)Treatment temperature (°C)δPmax (mm)Load Pmax (N)σt (MPa)

B0149.6625.11RT0.237042782.184
B0249.4525.24RT0.222150542.578
B0349.6225.09RT0.174844052.252
B0449.4524.88RT0.235551422.661
B0549.2225.02RT0.286868333.532
Average0.231251422.641
B0649.7624.976000.448553792.756
B0749.8225.156000.387052252.655
B0849.7425.136000.444463693.244
B0949.7324.986000.411565353.349
B1049.4325.226000.410477783.972
Average0.420462573.195

B, Brazilian split specimen; RT, room temperature (without heat treatment).