Research Article

Smart Aggregate-Based Concrete Stress Monitoring via 1D CNN Deep Learning of Raw Impedance Signals

Table 3

Material properties of components for SA sensor.

PropertiesPZT 5AEpoxy layerConcrete

Mass density, (kg/m3)775010902400
Young’s modulus, (GPa)62.10.7525.43
Poisson’s ratio, 0.350.30.2
Compressive strength, (MPa)32.325.3
Damping loss factor, 0.0125
Dielectric constant, (F/m)1.53 × 10−8
Coupling constant, (m/V)−1.71 × 10−10
Dielectric loss factor, 0.015

Compressive strength was determined by a uniaxial compressive test on three standard concrete cylinders (100 × 200 mm).