Open AccessExperimental study on electrical conductivity of carbon nanofiber reinforced concrete
Author(s) -
Tengjiao Wang,
Jie Xu,
Erlei Bai,
Haowen Chen,
Gaojie Liu,
Sen Chang
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/592/1/012034
Subject(s) - electrical resistivity and conductivity , materials science , composite material , carbon nanofiber , electrical resistance and conductance , electrode , conductivity , electrical conductor , voltage , nanofiber , carbon nanotube , electrical engineering , chemistry , engineering
To study the effect of carbon nanofibers (CNFs) on the electrical conductivity of concrete, we used the four-electrode method to measure the resistance and resistivity of carbon nanofiber reinforced concrete (CNFRC) under different ages, different fiber content and different test voltages. The results show that the incorporation of CNFs into concrete can improve the electrical conductivity of concrete. The electrical resistance and electrical resistivity of CNFRC increase with the increase of concrete age, but the growth rate decreases gradually. The resistance and electrical resistivity of CNFRC decrease with the increase of carbon nanofiber content and the optimum dosage range is 0.1%-0.3%. The resistance and electrical resistivity of CNFRC decrease with the increase of test voltage, and when the test voltage is 1V~5V, the resistance and electrical resistivity decrease significantly.