It is reported that in the shear-dominant column cast wholly with carbon nanofiber reinforced concrete, carbon nanofibers restrict the growth of nano-cracks and improve the self-sensing performance. The self-sensing cement composite can be prefabricated into small-size sensor element and then is embedded into the structure. [PERSON] et al. [17] developed hybrid nanomaterial cement-based composite sensors and investigated the feasibility of using the sensor for SHM. The nanomaterials used in the study consist of MWCNTs, carbon fibers and Graphene. [PERSON] et al. [18] examined the piezoresistive behaviors of carbon black cement-based sensors embedded in unreinforced small-scale concrete beams under flexural bending load. The test results demonstrated that during the stress monitoring of the concrete beam, the fractional changes in resistivity (FCR) values of sensors in both the flexural compression and tension zones were consistent with the flexural stress changes at acceptable sensitivity and reversibility. The self-sensing cement composite for existing structure or components can be coated on the surface of a structure or member. The application of self-sensing cement composite as coating form can be found in several studies [19; 20]. [PERSON] and [PERSON] [19] used the carbon fiber reinforced cement composite (CFRCC) on the compression side of cement mortar prismatic beam in coating form to monitor the compressive strain of beam specimen under flexure. It is found that the CFRCC coated on a mortar substrate is effective as a strain sensor. [PERSON] et al. [20] proposed a new CFRCC-strengthened reinforced concrete (RC) beam model. CFRCC layer (30, 60 and 90 mm) in the tensile side of RC beam was used for strengthening and monitoring the damage of RC beam under monotonic and fatigue loadings. They concluded that the damage condition in the CFRCC-strengthened RC beam could be monitored by electrical resistance variation. As described above, the self-sensing cement composite can be used both as structural material and sensor. A lot of research has concentrated on the self-sensing performance of cement composite used as a sensor under different stress conditions such as compression, tension and flexure. Unfortunately, the study on self-sensing cement composite member used in bulk form has rarely been conducted due to high cost. However, the bulk form possesses simple construction technology, good mechanical property and sensing performance, which has a wide application foreground [14]. When using the self-sensing cement composite as a structural material, i.e., bulk form, the effect of the steel reinforcement in the structural components on the self-sensing property should be evaluated because a structural member is reinforced with longitudinal and transverse steel reinforcement. [PERSON] and [PERSON] [21] reported that the effectiveness for the flexural strain-sensing of carbon fiber reinforced cement prismatic specimens was enhanced by the presence of embedded steel reinforcement on the tensile side. Despite a number of studies conducted on the self-sensing cement composite, little study has been focused on investigating the steel reinforcement effect on the electrical and sensing properties of cement composites. Strain-hardening cement composite (SHCC) is a novel construction material which is characterized with excellent mechanical performances such as distinctive tensile stress-strain response through strain-hardening behavior, multiple fine cracking behavior and high energy absorption under excessive tension loading conditions [22; 23]. Recently, numerous researchers have been interested in the self-sensing properties of SHCCs [24; 25; 26]. Compared with the conventional cement composite, SHCC can achieve a higher strain measuring range under various stress scenario such as tension, compression and flexure. The advantage of SHCC is due to the crack damage mitigation property by stress redistribution and crack bridging of reinforcing fibers in the SHCC matrix.