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Terry Collins
Sustainability consultant
Asked a question last year

What is the range of density of Carbon Fibre in Conductive Concrete?

What is the range of density of Carbon Fibre in Conductive Concrete?

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Carbon fibre in conductive concrete has a very low density. i.e 1.8 to 2.0 g/cm^3

PAN (polyacrylonitrile) carbon fibres has a range of 1.75 to 1.93 g /cm3.

It is between 0.5% to 1% by volume. 

It’s better to use density by volume and not by weight because 0.5% to 1% by volume is necessary to maintain electrical conductivity properly. The weight density will then depend on the fibre used. That will fall between 1.5 to 2 g/cc.

Lillian Holmes
Director of Public Works
What is the range of density of Carbon Fibre in Conductive Concrete?

Conductive carbon fiber reinforced concrete is a self-heating material specially used for prevention against ice formation.

Following are the specification of Carbon fibre used in conductive concrete;

  1. Density-1.81 g/cm 3
  2. Diameter- 7.2 micron
  3. Carbon Content-95%
  4. Tensile Strength-3800MPa
  5. Elastic Modulus-242GPa
  6. Resistivity-1.52 x 10^3