Carbon fiber/sulphoaluminate cement composites(CFSC) were prepared by casting process.The influences of drying treatment on the resistivity and piezo-resistivity effect of CFSC were studied.The experiment results indicate that the resistivity of CFSC increases with time of drying treatment.The electrically conductive channels of water decrease with the drying treatment time.Drying treatment causes the drying shrinkage and the increase of pore volume in CFSC.The piezo-resistivity effect of CFSC decreases due...