GECL also conduct concrete integrity testing on various structures as discussed below to reveal their integrity to still support the design loads. This test is conducted with the Schmitt’s Hammer, the equipment delivers a series of blows with a punching power of up to 70N/mm2. This is delivered into concrete elements through a rod within the device. The resulting resistance offered by the concrete element is measured in rebound and by means of interpolating the rebound, an average strength of the element is thus obtained.

This method was thus applied to the critical elements of buildings at various critical points where stress could be critical on the elements.