In this paper, the new methodology to detect the crack propagation in concrete will be pre- sented. The methodology will employ newly developed cement-based piezoelectric sensors that can be em- bedded into a concrete structure. The new sensors have the…
In this paper, the new methodology to detect the crack propagation in concrete will be pre- sented. The methodology will employ newly developed cement-based piezoelectric sensors that can be em- bedded into a concrete structure. The new sensors have the advantages of good compatibility with concrete, broad flat response spectrum, and good durability. By employing cement-based piezoelectric sensors, differ- ent mode of fractures have been studied, including tension, shear and mixed mode. The experiments results show that such new sensors can detect the formation of micro-crack, propagation of micro or macro crack, and different mode of failure.