Concrete is the most widely used construction material, and carbon nanofibers have many
advantages in both mechanical and electrical properties such as high strength, high Young’s
modulus and high conductivity. In this paper, the mechanical and electrical properties of
concrete containing carbon nanofibers (CNF) are experimentally studied. The test results
indicate that the compressive strength and per cent reduction in electrical resistance while
loading concrete containing CNF are much greater than those of plain concrete. Finally, a
reasonable concentration of CNF is obtained for use in concrete which not only enhances
compressive strength, but also improves the electrical properties required for
strain monitoring, damage evaluation and self-health monitoring of concrete.
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