Methods Used To Repair Concrete Structures

Although concrete surfaces are built to last, they are subjected to damage from compression, tension, and flexure. The extent of concrete damage varies depending on the conditions a surface is exposed to. Luckily, concrete repair services can restore the functionality of your concrete surfaces through various concrete repair methods.

Here are the common methods used to repair concrete structures.

Sealing Potholes and Cracks

If you notice minor potholes and alligator cracks on your concrete surface, you can use sealants to prevent extensive damage. Joint sealants from various materials such as silicone and epoxy can be used to cover cracks and potholes on flat surfaces.

Stitching

Stitching involves drilling holes around the cracked concrete surface and inserting a metallic wire that is used to stick existing cracks together. The metallic wire used is further strengthened with grout or epoxy mixtures. Usually, there are three types of concrete stitching methods:  

• Slot stitching

• U-bar stitching

• Cross stitching

Each method creates stitching interlocks that offer improved reinforcement that prevents concrete slabs from separating.

Epoxy Injections

The epoxy injection concrete repair procedure involves injecting epoxy into concrete cracks. Epoxy bonds with concrete fast and quickly restore the integrity of your concrete structure. Usually, professional concrete contractors assess and determine whether epoxy injections are the best alternative to repair your concrete surface.

Dry Packing

The dry packing concrete repair method relies on fiber or steel-reinforced concrete to prevent the formation of deep cracks. The reinforced concrete is used to fill minor cracks to improve cohesion and impact resistance. When properly filled, fiber and steel embedded concrete reduce crack girths, enhancing the durability of your concrete surface. Dry packing concrete repair is best used if your concrete surface is constantly subjected to extreme heat and pressure.

Patching

Patching a concrete surface is a simple concrete repair method that does not need special tools and skills to implement. Usually, the repair procedure involves applying a crack sealant to the cracked concrete surface. To preserve the aesthetic appeal of your concrete surface, concrete contractors cut V-shaped holes along the cracked surface before applying the sealant. For long-lasting results, it's recommended that you use a non-shrink sealant as it does not reduce in volume, thus strengthening your concrete surface.

Polyurethane Injections

Suppose water is leaking from a concrete structure; it's best to use polyurethane injections. The polyurethane injections fill concrete cracks and voids, preventing water from leaking through a concrete structure.

Above are the common concrete repair methods you can utilize to restore the function of your concrete surface. Concrete repair contractors can recommend dry packing, patching, stitching, and epoxy injection methods, depending on the level of concrete damage.