ACI Concrete Strength Testing Technician Practice Test

Who is responsible for performing qualification tests of unbonded pads?

1. Testing laboratory only

2. Supplier or user

3. Government agency only

4. Independent reviewer only

The correct answer is: Supplier or user

The responsibility for performing qualification tests of unbonded pads falls to both the supplier and the user. This shared responsibility ensures that both parties are engaged in the quality assurance process of the materials being used. The supplier has the knowledge and resources to conduct the necessary tests to confirm that the pads meet required specifications, while the user is involved in verifying that these materials are suitable for their specific application. This collaborative approach helps in maintaining high standards for concrete strength testing and ensures that the materials used in construction meet safety and performance requirements. In contrast, the other options focus on responsibilities that are either too narrow or limited to specific entities. The testing laboratory, for instance, typically conducts the tests but does not hold the exclusive responsibility for qualification. Government agencies may set regulations or standards but do not directly perform the qualification tests themselves. An independent reviewer may assess the results but does not conduct the qualification tests. Thus, the collaborative responsibility between the supplier and the user is critical to ensure comprehensive testing and validation of unbonded pads.