“…e test results of critical rolling angle (θ cc ) of B1 concrete are shown in Figure 15. According to the test results of the inclined test in Figure 9, the average surface energy (c) of 9 kinds of concrete was calculated by the method in [43]. e surface energy (c) of A1, A2, A3, B1, B2, B3, C1, C2, and C3 is 0.368 J/m 2 , 0.368 J/m 2 , 0.369 J/m 2 , 0.374 J/m 2 , 0.374 J/m 2 , 0.373 J/m 2 , 0.383 J/m 2 , 0.384 J/m 2 , and 0.383 J/m 2 , respectively.…”