Evaluation of Concrete by Non-destructive Ultrasonic Pulse Velocity Method

Concrete is a material whose properties depend on its initial formulation, conditions of use, and change over time depending environment the different types degradation that it likely to undergo. Knowledge monitoring various mechanical are therefore essential for maintenance civil engineering works. All concrete assessment methods, whether destructive or non-destructive, can then provide valuable diagnosis operators structure. Depending their precision, they be used easily detect an alteration in characteristics materials, locate damaged area, extent damage, even precisely quantify evolution this damage predict future changes. This paper presents Ultrasonic Pulse Velocity technique (UPV) which by many companies assess compressive strength situ allows measuring speed attenuation elastic waves. The influence reinforcements ultrasonic pulse velocity has been studied case reinforcement perpendicular parallel direction propagation. several factors affecting UPV, related otherwise, was mentioned. Indeed, porosity, water/Cement ratio, micro-cracks, state saturation temperature parameters strongly values UPV.