According to Malhotra, a concrete that presents an UPS between 3660 m/s and 4575 m/s is considered as good; under this range, it is considered as regular and over this range it is considered as excellent Pardo F. and Pérez E., 2010.
Según Malhotra, un concreto que presenta una VPU que esté entre 3660 m/s y 4 575 m/s se considera bueno; por debajo de este rango se considera regular y por encima de éste se considera excelente Pardo F. y Pérez E., 2010.