Correcting the cracking problem can be fairly simple, or may be difficult involving design changes. Consult a structural engineer when design changes are necessary. Do this before starting the injection. Repairing cracks by Injection is effective after these design changes. Prevent future cracks by fixing the original cause of the cracking, when ever possible.
Parking garages are an example of cracking problem that require a structural engineering analysis.
Avoid weld injecting a crack if there are not enough expansion joints. Sometimes flexible overlays such as fexibilized MMA can be used to overcome this defect. This does not however encapsulate the rebar in a way that will totally stop the premature deterioration of the steel. Often times additional joints are needed, thus the analysis of cracking problems is critical. Injection Preparation Proper job preparation is essential to insure maximum results.