Repairing Crumbling Concrete Floor In Basement

Modern epoxies are available that also make great repairs.

Repairing crumbling concrete floor in basement.

Of the home improvement stores. I d say roughly 50 of the floor in a 10x10 area looks intact but the other 50 has lost the top layer of cement and has become uneven. Then add the instructed amount of water. The product for this is muriatic acid it s readily available at masonry supply stores or the concrete depts.

Remove all of the crumbling concrete by hand and then use a floor scraper to loosen any pieces that might be partially stuck but not completely crumbled. The bad concrete first needs any crumbling removed. Mix it with a trowel electric mixer or your hands until it reaches a thick peanut butter like consistency. Mortar is used to patch cracks in concrete.

Look for specialized mortar designed for repairing concrete at the hardware store. Next step is an acid wash and etching of the bad areas and about 8 inches past the bad edges. Vacuum the area after you are done to completely clean it and prep it for repair. Allow the concrete to dry overnight and cure for at least two days.

Always use the cement paint to bond your new concrete to your old. Cracks are developing and it seems like any area that was sealed it is just porous gross concrete that seems. Pour out the dry mortar into a bucket. I am past the paint level.

The floor was at one time concrete but now with water always on it there are cracks and missing pieces 3 in diameter here and there and pulverizing to small stones and dust. Old crumbling concrete basement floor what to do my mom s basement has a concrete floor that has been broken down over the years from use and from water. Prepare the crumbling area for a coat of new concrete. Use the trowel to level and push down the concrete.

Sometimes there is an additive that goes in after the fact that gives you some texture to the floor helps kind of hide the dirt. With the flooding the basement walls are now crumbling. To repair deeper concrete defects or to replace chunks of missing concrete just add small stones to your mix. How can i fix it and or paint it so the dust is kept at a minimum while sealing hair line cracks that let dampness come up through.

The ratio should be three parts stone two parts sand and 1 5 parts portland cement for a strong mix. Concrete basement floors need to be flat even and level. When you buy the floor paint you get the paint in a gallon can that s about three quarters filled and then a quart of hardener. The basement was waterproofed recently.