Assessment of Concrete Compressive Strength by Ultrasonic Non-Destructive Test

This paper has carried out an experimental program to establish a relatively accurate relation between the ultrasonic pulse velocity (UPV) and concrete compressive strength. The involved testing cubes of (100) mm prisms (100×100×300) cast with specified test variables. samples are tested by using equipment two methods, direct (DUPV) surface (indirect) (SUPV) for each sample. obtained results were used as input data in statistical (SPSS) predict best equation representing strength velocity. In this research 383 specimens tested, exponential is proposed purpose. been prove which type UPV more suitable, or test, represent paper, effect salt content on connection also studied.