We’ve been carrying out concrete resistance Pull Off testing to a sample repair area. Tests were carried out to failure,
Pull-off tests measure the force required to pull a metal block (dolly) from the concrete surface to which it has been attached using a high strength adhesive.
The break-off test measures the force required to break off a core that has been drilled 70 mm into the concrete surface.
We carried out the Concrete Pull Off Tests using Hydrajaws M2000 Tester.
Failure of the repair material to the parent concrete was primarily at the repair interface.