Effect of Carbon and Steel Fibers on the Strength Properties and Electrical Conductivity of Fiber-Reinforced Cement Mortar

Cement-based composites are generally non-conductors with high electrical resistivity, but they can be used as conductors by incorporating conductive materials. Recently, research has been actively conducted to develop high-conductive fiber-reinforced cement mortar (FRCM) due increased interest in multifunctional required the market today. Thus, present paper investigated effect of developed FRCM containing carbon and steel fibers on fresh mechanical properties well conductivity. The performance conductivity was studied based flow, unit weight, air content, three-point flexural, compression, resistance tests. In addition, their also compared reviewed plain (PM). Furthermore, surface shape element components fracture were analyzed using a scanning electron microscopy (SEM) an energy dispersive X-ray spectrometer (EDS). results showed that addition slightly decreased relative flow value, whereas incorporation is very disadvantageous terms fluidity fiber ball phenomenon. weight mixture somewhat decreased, changes amount contents relatively insignificant regardless volume fractions. flexural strength (CFRCM) (SFRCM) significantly improved PM. compressive CFRCM fraction increased. Overall, even if added up 1.25%, improving SFRCM insignificant. case this study, it found percolation threshold existed between 0.3% 0.4% fibers, thus thought optimum dosage should secured at least more than Therefore, most important factor for fiber,