Cementitious Piezoresistive Structural Sensors (PRSS-CIGMAT (C))

Stress-strain relationships and sensing properties of cementitious piezoresistive materials were analyzed based on literature review. Piezoresistive performance of various cementitious materials was compared based on compressive stress, strain and resistivity relationships. Based on the current study, typical value for piezoresistive coefficient was estimated to be 3470*10 -9 m 2 /N while corresponding gage factor was 260.