In this study, bismuth sodium titanate (BNT)-Portland cement (PC) composites with 1-3 connectivity pattern were fabricated by the dice-and-fill technique with different BNT ceramic content ranging from 30 to 70 vol%. The acoustic impedance (Z(c)) and electrical properties of the composites were studied. When the BNT content varies from 30 to 70 vol%, Z(c) value increases from 8.95 to 14.79 x 106 kg/m(2)s. At BNT ceramic content of 70 vol%, dielectric constant (epsilon(r)), electromechanical coupling coefficients (K-t) and piezoelectric coefficient (d(33)) are 346, 21.28% and 70 pC/N, respectively. Interestingly, the piezoelectric voltage coefficient (g(33)) values exhibited an opposite trend, that is, the g33 value decreases as the BNT content increases. Therefore, 1-3 connectivity of bismuth sodium titanate-Portland cement composites can be tailored by adjusting the piezoelectric ceramic content in composite; the developed composites have potential to be used as sensors for structural health monitoring applications in smart structures. (C) 2014 Elsevier Ltd. All rights reserved.