From: Experimental Study on Damage Evaluation, Pore Structure and Impact Tensile Behavior of 10-Year-Old Concrete Cores After Exposure to High Temperatures
Pg (MPa)
Velocity (m/s)
b
R2
0.3
7.11
0.272
0.98
0.4
10.26
0.280
0.90
0.5
13.02
0.290
0.95
