Average Fracture Energy for Crack Propagation in Postfire Concrete

Figure 6

𝑃versus CMOD curves of specimens with temperatures.

(a) 𝑃_ℎ versus COD curves of specimens at 120°C

(b) 𝑃_ℎ versus COD curves of specimens at 450°C

(c) 𝑃_ℎ versus COD curves of specimens at 600°C

(d) Typical 𝑃_𝑣 versus COD curves of specimens at all temperatures