Flexural Behavior of Corroded Steel Fiber Reinforced Concrete Beams with Variable Fiber Contents

Authors

  • Seihak Heang Mahidol University
  • Pornpen Limpaninlachat Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, THAILAND
  • Punyawut Jiradilok Department of Civil Engineering, Faculty of Engineering, Kasetsart University, THAILAND
  • Thatchavee Leelawat Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, THAILAND
  • Withit Pansuk Center of Excellence in Innovative Construction Materials, Department of Civil Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, THAILAND

Keywords:

Steel Fiber Reinforced Concrete, Steel Corrosion, Flexural Performance, Crack Width, Failure Pattern

Abstract

Steel fiber reinforced concrete (SFRC) is introduced to the construction due to the capability of the load enhancement and restraining the crack opening, which leads to higher structural performance and longer durability. The main purpose of this study was to study the effectiveness of steel fiber contents in SFRC beams under corrosion to the crack propagation, flexural loading capacity and corresponding failure pattern. A total of 4 SFRC beams were fabricated with same dimension of 100 x 200 x 1400 mm including 4 deformed bars with diameter of 12mm. Moreover, 6mm stirrups were reinforced to avoid shear failure. The contents of mil-cut steel fiber varied from 0%, 0.5%, 1.0% and 1.5%. All specimens were accelerated by the impressive current (ICT) method within 19 days. Crack width of the specimens were measured and recorded to analyze the crack propagation during the ICT method. Specimens were subjected to the four-point bending test for investigating the capacity, deflection, and failure pattern. After the bending test, the steel reinforced rebars were extracted from the specimens to observe the actual corrosion degree. The results showed that the increase of fiber contents could reduce the overall crack and lead to the higher yield and ultimate loading capacity of SFRC as well.

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Author Biographies

Pornpen Limpaninlachat, Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, THAILAND

 

 

Punyawut Jiradilok, Department of Civil Engineering, Faculty of Engineering, Kasetsart University, THAILAND

 

 

 

Thatchavee Leelawat, Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, THAILAND

 

 

Withit Pansuk, Center of Excellence in Innovative Construction Materials, Department of Civil Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, THAILAND

 

 

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Published

2023-06-14

How to Cite

Heang, S., Limpaninlachat, P., Jiradilok, P., Leelawat, T., & Pansuk, W. (2023). Flexural Behavior of Corroded Steel Fiber Reinforced Concrete Beams with Variable Fiber Contents. The 28th National Convention on Civil Engineering, 28, STR07–1. Retrieved from https://conference.thaince.org/index.php/ncce28/article/view/2598

Issue

Vol. 28 (2023): Proceeding of The 28th National Convention on Civil Engineering: Post-Pandemic Challenges on Civil Engineering

Section

Structural Engineering: STR

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