The smart behavior of cement-based composite containing Carbon fibers under three-point-bending load

Abstract

The influences of the fiber volume fraction on the electrical conductivity and the fraction change of electrical resistance under three-point-bending test were discussed. It is found that the relationship between the electrical conductivity of composites and the fiber volume fraction can be explained by the percolation theory and the change of electrical resistance to the load for specimens with different fiber volume fractions are quite different, which provide an important guide for the manufacture of conductive and intrinsically smart carbon fiber composite.

Keywords

carbon fiber / cement composite / electrical conductivity / smart behavior

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