Fracture characteristics of iron tailing sand concrete under three-point bending beam method

Zhang, Yao; Kang, Hongzhen; Ma, Wei

doi:10.1117/12.2639329

Cited by 1 publication

(1 citation statement)

References 7 publications

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“…However, when the substitution rate is over 40%, the crack width calculation should be corrected. Zhang 27 conducted the bending test on iron tailings sand concrete beams and CC beams, and the test results showed that the stiffness of the iron tailings sand concrete beam is 1.1% lower than that calculated by the code, and the maximum crack width is 16% lower than that calculated by the code formula. Zhang 28 used iron tailings sand to completely replace river sand to prepare concrete and then investigated and compared the axial compression performances of iron tailings sand concrete and CC short columns.…”

Section: Introductionmentioning

confidence: 98%

Experimental studies on flexural behavior of full iron tailings concrete beams

Ma,

Sun,

Zhang

et al. 2023

Structural Concrete

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Iron tailings have been extensively studied as mineral admixtures and as coarse and fine aggregates. However, few studies have been conducted on the mechanical properties of iron tailings concrete structures. Using iron tailings powder as an mineral admixture, and iron tailings gravel and sand as coarse and fine aggregates, respectively, the flexural behavior of full iron tailings concrete (FITC) beams was investigated experimentally. Compared with conventional concrete (CC) beam, we showed that the crack‐resistant, yield, and ultimate moments of FITC beams are similar to those of the concrete strain of FITC beams, which is in good agreement with the plane section assumption before cracks appear. The low elastic modulus of FITC makes the deflection of three FITC beams larger than that of a CC beam. The current design code of China is appropriate for calculating the load‐carrying capacity of FITC beam; however, the deflection calculation formula should be modified.

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Section: Introductionmentioning

confidence: 98%