Over the years, concrete can begin to wear. It can crack and seem to be peeling away or scaling. In the past, if a concrete sidewalk or driveway began showing serious signs of wear, the only option was to completely remove it and start new. This job would require bulldozers and jackhammers to remove the entire concrete area. With changing knowledge, concrete surface repair has become an easier option.
Before you can start any work on your concrete, you must determine the level of damage. If the damage is the full depth of your concrete, this may require a bit more work. The entire damaged area will need to be cut out. This will require replacement of the reinforced steel beams. You will then need to replace the concrete in that area.
If the damage is very deep, but not all the way through, you can cut away the damaged area leaving the steel beams. From here, you can replace any damaged beams and then clean the remaining beams. Then you can replace the area with a repair mortar.
If the damage and wear is just at the surface, then concrete surface repair is your option. Before you start the concrete surface repair, the area must be prepared. This is the most important process. Improper preparation can lead to failed repairs. The first thing that needs done is removal of all unsound and damaged concrete. This can be done with a variety of methods. Using water jets or sandblasters are good options. You could also use impact methods such as a scabbler or jackhammer. The big problem with impact methods is they can cause unnoticed bruising to your concrete. This bruising can create an area of fine cracking.
After the area is cleaned, you will need to give the concrete the proper roughness. This roughness will let the concrete surface repair stick to the old concrete. The proper roughness is determined by the type of concrete used. Once the area is prepared properly, you can apply the new concrete. This is usually a polymer based concrete to ensure it sticks well to the old surface.
It is a good idea to do this work on a day with no rain and low humidity. A day with the temperature between 70 to 75 degrees is ideal. This will help ensure your concrete sets and dries properly.Save
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