ACI Concrete Strength Testing Technician Practice Test

The statement is false; polyurethane or butyl pads with a durometer hardness of 50 must be qualified prior to use on specific compressive strengths. Qualification is a crucial process to ensure that the pads perform adequately under various conditions and load applications. It helps ascertain that the pads will not introduce variability into the test results. Proper qualification includes testing the pads under prescribed conditions to verify their effectiveness in transmitting the load accurately during compression testing.

Using unqualified pads could lead to inaccurate readings and unreliable strength results, which is why they should always undergo a qualification procedure as part of the testing protocol.