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Fracture characteristics of iron tailing sand concrete under three-point bending beam method
The paper carries out the study of iron tailing sand concrete from the perspective of fracture mechanics. The three-point bending beam method was used to conduct fracture tests on iron tailing sand concrete and river sand concrete, and the P-CMOD curve and P-ε curve of each group of specimens were measured to determine the initial cracking load, unstable cracking load, initial cracking toughness and unstable cracking toughness. Comparing the test processes and fracture parameters of each group of specimens, it was found that there was no significant difference between the fracture processes of the two concretes, and the initial cracking load, unstable cracking load, initial cracking toughness and unstable cracking toughness of the iron tailing sand concrete were higher than those of the river sand concrete, among which the initial cracking load and initial cracking toughness increased significantly.
Fracture characteristics of iron tailing sand concrete under three-point bending beam method
The paper carries out the study of iron tailing sand concrete from the perspective of fracture mechanics. The three-point bending beam method was used to conduct fracture tests on iron tailing sand concrete and river sand concrete, and the P-CMOD curve and P-ε curve of each group of specimens were measured to determine the initial cracking load, unstable cracking load, initial cracking toughness and unstable cracking toughness. Comparing the test processes and fracture parameters of each group of specimens, it was found that there was no significant difference between the fracture processes of the two concretes, and the initial cracking load, unstable cracking load, initial cracking toughness and unstable cracking toughness of the iron tailing sand concrete were higher than those of the river sand concrete, among which the initial cracking load and initial cracking toughness increased significantly.
Fracture characteristics of iron tailing sand concrete under three-point bending beam method
Zhang, Yao (author) / Kang, Hongzhen (author) / Ma, Weihua (author)
2022 International Conference on Optoelectronic Information and Functional Materials (OIFM 2022) ; 2022 ; Chongqing,China
Proc. SPIE ; 12255
2022-04-29
Conference paper
Electronic Resource
English
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