Information about Ultrasonic Pulse Velocity Test

Ultrasonic Pulse Velocity (UPV) testing of concrete elements is useful to evaluate quality and consistency of concrete, along with locate regions of bad consolidation, honeycombing or delamination due to corrosion. It is also possible to measure the depth of perpendicular cracks in the concrete.

UPV testing measures the time of transit of an ultrasonic pulse between two test points. The pulse velocity is calculated upon the direct distance between the two test points. This velocity value is related to a number of material properties of concrete including the density and elastic modulus. There will also be a reduction in pulse velocity if there is damage to the concrete being tested or regions of bad consolidation.

Conventionally UPV testing uses P wave transducers, that is it sends and receives compression waves. Shear wave transducers are also available, S waves are more slowly transmitted. Where P&S wave testing on lab samples is combined with measuring the density of a sample it is possible to determine a samples Poisson’s ratio and E-modulus as well.


Provided access to opposite sides of a concrete element is available UPV is anexcellent choice for testing concrete homogeneity, locating defects in newly cast elements and damage to older structures. 
Location: 326 Keilor Rd, Niddrie VIC 3042, Australia

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