Carbon fiber

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Carbon fiber can be used as a construction material, in particular in tensile structure that may be quite common on Mars.

Carbon fiber is usually immersed in a resin in a proportion of about 50/50. So as far as a building material the tensile values are reduced by 50%, since the resin has very little strength.

Physicals characteristics:

Ultimate tensile: kPa

Tensile value for structural use: kPa

Density: 1200 kg/m3 on average

Carbon nanotubes, if these can ever be produced in large quantities, might provide an interesting alternative

Production process

Carbon fibers could be produced in situ from the CO2 in the atmosphere.