Abstract:To investigate the effect of interface roughness on the fracture behaviors of rock‐concrete specimens, the acoustic emission (AE) and digital image correlation (DIC) techniques are used to monitor the fracture process of the granite‐concrete specimens with different interfacial roughnesses under three‐point bending (TPB) load. The initial fracture toughness of rock‐concrete specimens with different interfacial roughnesses is calculated. The characteristic parameters of the AE are also discussed. Based on the f… Show more
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