Abstract: It is studied that the effects on anti-permeability,frost resistance,durability and dry shrinkage deformation of concrete by adding different volume percentage contents of carbon fibre,different content and fineness of granulated slag.The results show that ultrafine slag and carbon fibre can improve the anti-permeability and frost resistance of concrete within a fixed content range,under the same ratio of slag and ash,anti-permeability can be improved gradually with the increased fineness of slag,the dry shrinkage value of slag-carbon fibre multiphase electric conduction concrete is slightly larger than that of an ordinary concrete.