Concrete Crack Injection
Damage to a poured concrete wall can be repaired using concrete crack injection. This type of repair is not suitable for other forms of concrete including concrete blocks used to build wall structures. These concrete blocks are hollow and the concrete crack injection will not have any material to bind with to seal the repair.
The concrete crack injection is not limited by the size of the crack in need of repair. Smaller line cracks can be repaired just as easily as wider concrete cracks as long as the width does not exceed one half inch.
Concrete crack injection requires a polyurethane material pushed into the depth of the crack as well as the length of the crack. The polyurethane is waterproof and prevents any further damage to the wall as a result of the crack.
The application process for concrete crack injection is ideal for all cracks as the polyurethane is forced into the crack at pressures up to 3000 pounds. The entire crack will be set within hours and the flexible nature of the sealing material allows the concrete to expand and contract without any future damage occurring at that spot.
It is important to note that polyurethane is not appropriate for all types of concrete cracks. Poured concrete walls that need to be structurally sound may need to be repaired with an epoxy to maintain the integrity of the wall. Epoxy can be used in concrete crack injection in the same manner as polyurethanes. The only difference is the preparation as polyurethanes are foam materials that expand to fill the crack and epoxies need to have their thickness adjusted based on the thickness of the crack.