ABSTRACT
The sensing principle of cementitious sensors leverages their piezoresistive property, where a change in geometry provokes a measurable change in resistance. The quality of dispersion of carbon black (CB) particles was verified on each sample using thermography. Styrene-ethylene/butylene-styrene (SEBS)-type Mediprene was obtained from VTC Elastoteknik AB, Sweden. It is a petroleum-based block copolymer widely used for medical applications because of its purity, softness, elasticity, and strength. The quality of dispersion of CB particles was verified on each sample using thermography. Tests were conducted to validate the hypothesis that SEBS can be utilized to accelerate percolation of the material and that the resulting conductive cementitious paste can be used as a sensor. The chapter investigates the use of SEBS to accelerate percolation of cementitious composites filled with CB particles. Conductive cement paste sensors were fabricated with SEBS mixed with various concentrations of CB particles.
