Effect of temperature on electrical resistivity of high-performance fiber-reinforced concretes

  • Phan Tan Duy Faculty of Civil Engineering, Ho Chi Minh City University of Technology, 268 Ly Thuong Kiet street, District 10, Ho Chi Minh city, Vietnam
  • Le Ba Khanh Faculty of Civil Engineering, Ho Chi Minh City University of Technology, 268 Ly Thuong Kiet street, District 10, Ho Chi Minh city, Vietnam
  • Nguyen Duy Liem Faculty of Civil Engineering, Ho Chi Minh City University of Technology and Education, 01 Vo Van Ngan street, Thu Duc city, Ho Chi Minh city, Vietnam
  • Nguyen Van Thuan Faculty of Traffic Engineering, Nha Trang University, 02 Nguyen Dinh Chieu street, Nha Trang city, Khanh Hoa province, Vietnam
DOI: https://doi.org/10.31814/stce.huce2023-17(3)-02
Keywords: temperature, electrical resistivity, high-performance fiber-reinforced concrete, smart material

Abstract

The effect of temperature on the electrical resistivity of high -performance fiber-reinforced concretes (HPFRCs) were highlighted in this investigation through an experimental approach. There are four HPFRC mixtures as follows: HPFRC0 (no fiber), HPFRC1 (macro steel fiber, 1.5% by volume), HPFRC2 (micro steel fiber, 1.5% by volume), and HPFRC3 (hybrid fiber, 1.0% by volume macro steel fiber blended with 0.5% by volume micro steel fiber). All HPFRC specimens had an identical size of 40 × 40 × 160 mm3 (width x depth x length). The electrical resistivity of HPFRCs was measured under three temperature levels, including 0oC, 25oC, and 50oC using a chamber machine. The research proved that the electrical resistivity of the studied HPFRCs obviously decreased with increasing of the temperature ranging from 0oC to 50oC. Generally, the temperature exhibited a considerable effect on the electrical resistivities of cement-based composites.

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Published
25-09-2023
How to Cite
Duy, P. T., Khanh, L. B., Liem, N. D., & Thuan, N. V. (2023). Effect of temperature on electrical resistivity of high-performance fiber-reinforced concretes. Journal of Science and Technology in Civil Engineering (JSTCE) - HUCE, 17(3), 21-32. https://doi.org/10.31814/stce.huce2023-17(3)-02
Issue
Vol 17 No 3 (2023)
Section
Research Papers

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