Throughout the lifespan of your home, common wear and tear to various concrete surfaces is a natural occurrence that needs to be repaired. If left untreated, cracks in your concrete can grow and cause serious damage. However, concrete repair services are typically easy jobs that you can take care of yourself providing you've got some basic tools.
To complete the job, you'll need some triple-expanding foam, enough mortar to fill in your cracks, a hammer and a concrete chisel, as well as a trowel, a basic sponge and a bucket of water. All of these materials can be found easily at your local hardware store.
Step by Step
For large cracks, you'll need to begin this project by applying some of your triple-expanding foam into the crack. This is especially important if your crack has deepened to form a hole in a common surface like a wall. Simply apply the triple expanding foam to the crack and leave it to expand and dry as per the manufacturer's instructions. While the foam is working, you can begin mixing your mortar.
When mixing your mortar, pay close attention to the manufacturer's instructions, being sure to create the consistency of a thick paste - not too runny and not too thin. When you've reached the desired consistency, add an acrylic bonding agent to the mix. This will help the mortar to really adhere to the wall during application.
Be sure to inspect your crack before applying your mortar. If the crack is paper thin, then you'll want to widen it with your hammer and chisel so that there is enough space to apply your mortar. Otherwise you run the risk of your mortar falling out once it becomes dry.
After you've chiseled the crack to make it roughly a centimeter in width, you can apply your mortar. Apply a good amount, and use a trowel to spread it out smoothly, blending it into the concrete surface. If the crack extends through a wall, then be sure to apply mortar to both sides to prevent any further damage from occurring. Once you've applied your mortar and smoothed it out, then it's a great idea to add some texture to the surface so that it takes on the appearance of the existing area. To add texture, simply get a wet sponge and gently rub down the area in a circular motion. Leave the mortar to dry for a few weeks and your concrete will be good as new.
For more info about concrete repair, talk to a concrete contractor in your area.