Patching wide cracks in concrete takes considerable time and effort. You must clean and widen the base of the crack to improve the patch grip, mix the patching compound, apply the compound with a trowel, tamp it down, and seal it. However, according to Central Pacific Specialty Contractors in Kailua, HI, if you address concrete repairs in a timely fashion while the cracks are still narrow, a simple crack injection is often enough to complete the fix. Below, the Oahu waterproofing and pool contractors explain what the process of crack injection is and discuss how to repair concrete using this method.

What Is Crack Injection?

Crack injection is an easy and affordable way for concrete contractors to repair small cracks in concrete, particularly in foundation walls where waterproofing is an important issue. The technique utilizes either liquid epoxy or polyurethane resin. Urethane foams are a terrific delivery method for resin and are less expensive, easier to apply, and able to fill larger cracks than epoxy is. On the other hand, epoxies are even stronger than concrete, so they provide an extremely strong weld.

How Do You Repair Concrete Cracks With Crack Injection?

Concrete contractors clean the cracks of debris using a wire brush and then coat the inside surface of the crack with a paste that, after it cures, will bond firmly with the injection material. Then, the epoxy or resin is injected into the crack. The filler material expands to fill the crack completely instead of simply patching the surface, making this method ideal for deep fissures and through-cracks. A chemical bond forms between the earlier-applied paste and the injected filler, holding the filler firmly in place. This forms a durable, waterproof seal that prevents further crack expansion.

Central Pacific Specialty Contractors, the leading pool construction and concrete contractors on Oahu, HI, offers fast, reliable repair of cracks in your patio, pool walls, or home foundation. Visit their website for contact information, or call (808) 262-2527 to request service. Act quickly, as it is easier and less expensive to repair concrete cracks before they widen.