Fracture Energy of Reactive Powder Concrete Based on Uniaxial Tensile Test
Based on uniaxial tensile test, the complete uniaxal tensile stress-strain curve of Reactive Powder Concrete (the steel fiber content by volume is Vf =1%, 2%) was obtained, and the fracture energy of RPC specimens with cross-section of 100mm by 100mm was calculated. The test was finished through Universal Testing Machine without any stiffness-strengthen devices. In order to solve the stress concentration problem, a self-designed uniaxial tensile test equipment was developed, and a dumbbell-shaped specimen was used in the test. The results indicate that the fracture energy of RPC increased as well as the increasing of Vf.
Shiquan Liu and Min Zuo
H. Y. Yuan et al., "Fracture Energy of Reactive Powder Concrete Based on Uniaxial Tensile Test", Advanced Materials Research, Vols. 306-307, pp. 519-522, 2011