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Distresses in concrete can have effects on Ultrasonic pulse velocity (UPV) readings. Hence, it is important to identify the level of deviation between this non-destructive test reading from destructive testing. In addition, the age of concrete and blended cements in concrete may also affect on UPV measurements. In this regards, three parameters were selected as variable in this test program: concrete age, type of mix and discontinuities such as voids and cracks. UPV values notably increase as concrete ages. Equations correlating concrete strength and UPV values were obtained from literature, were compared, and the applicability of these equations were analysed for early age concrete. Processed Sugarcane bagasse ash (SCBA) inclusion leads to higher pulse velocity values, especially in 20% blends, due to pozzolanic properties promoting additional chemical reactions and improved concrete compactness. 10% and 15% SCBA blends show smoother transitions in pulse velocity, indicating reduced heterogeneity. For 10% and 15% SCBA blended concrete, equations selected from literature offer accurate UPV strength estimations with minimal deviations from concrete cube test results. However, UPV strength evaluation method is not suitable for 20% SCBA blends, as it exhibits significant deviations. Presence of voids and cracks causes a noticeable drop in UPV values. UPV testing effectively identifies damage locations and quantifies crack severity. In conclusion, UPV testing is a valuable non-destructive evaluation technique for assessing concrete properties and detecting damage. It correlates UPV values with concrete age, evaluates concrete …