Recent studies have shown that glass powder can be used as supplementary cementitious material (SCM) in engineered cementitious composites (ECC). However, there is a need to evaluate the long-term permeability properties of conventional ECC and those incorporating glass powder as SCM. Also, the limited use of non-destructive test methods to evaluate ECC has called for a need to investigate the response of ECC to non-destructive tests (NDT) and create a correlation between these NDT results and other properties of ECC. Therefore, this study was carried out to evaluate the long-term permeability properties of ECC incorporating glass powder. Ultrasonic pulse velocity was also used as a non-destructive test to evaluate the performance of the ECC. Results observed from this study showed a correlation between the ultrasonic pulse velocity passing through the ECC and the permeability properties. Results from this study will serve as a useful resource for evaluating the performance of ECC based on non-destructive tests such as that of ultrasonic pulse velocity.