Assessing the shear behavior of steel fiber reinforced concrete beams corroded under chloride attacks

  • Nguyen Thi Thanh Thao Faculty of Building and Industrial Construction, Hanoi University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
  • Tran Phi Son Tung Faculty of Building and Industrial Construction, Hanoi University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
  • Nguyen Duc Nhan Faculty of Building and Industrial Construction, Hanoi University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
  • Nguyen Ngoc Tan Faculty of Building and Industrial Construction, Hanoi University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
Keywords: shear behavior, steel fiber reinforced concrete, reinforced concrete beam, steel corrosion

Abstract

Steel corrosion affects the failure mechanism of deteriorated reinforced concrete (RC) beams. Meanwhile, there is a lack of research on the shear behavior of corroded RC beams, particularly corroded steel fiber reinforced concrete (SFRC) beams. This paper investigates the shear behavior of corroded SFRC beams with a 1.5 shear span-to-depth ratio. All beam specimens included steel fibers with 50 kg/m3. In particular, tensile longitudinal reinforcements were subjected to a corrosion degree of 16.4%, while stirrups were subjected to an approximately 24.1% corrosion degree. These results are compared to those obtained on a non-corroded beam. The obtained results from the four-point loading tests show that the corroded SFRC beams preserve a softening behavior as opposed to the sudden shear failure of RC beams without steel fibers.

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Published
31-05-2022
How to Cite
Thao, N. T. T., Tung, T. P. S., Nhan, N. D., & Tan, N. N. (2022). Assessing the shear behavior of steel fiber reinforced concrete beams corroded under chloride attacks. Journal of Science and Technology in Civil Engineering (STCE) - HUCE, 16(3), 97-110. https://doi.org/10.31814/stce.huce(nuce)2022-16(3)-08
Section
Research Papers