But rarely did these flimsy versions of the modern (and harder, stronger) concrete block lead to a construction failure due to its innate properties. As far as I know on the subject, the only solutions that you can apply from the inside, such as another sealant or a large layer of concrete and lime stucco, are temporary solutions and any real solution would have to be made from the outside of the base. Horizontal cracks in a cinder block wall more immediately threaten serious collapse than vertical cracks. If there were an inch or so, then yes, you would want to hire an experienced bricklayer or a structural or civil engineer who had experience and knowledge in residential block foundations. Repairing the chipping of concrete can be as simple as fixing the underlying problem, removing damaged material from the surface, and re-pouring a part of the slab. Chipping of foundations is almost always due to age or drainage problems and not due to improper construction practices. If the old sealant has hardened, crumbled or separated from concrete at some points, you can also use a sealant to fill in the joints and help them do their job. You can use a sealant such as Quikrete's Concrete & Masonry Waterproofing Sealant to protect the new look of your countertop and prevent damage from acid spills, such as vinegar or lemon juice. Once you have removed the damaged material, you can begin to repair the chipped concrete. After that, remove any loose concrete from the chipped surface.Ĭhipped or chipped parts can be removed with a cold chisel and hammer. Make the cut about three-eighths of an inch deep with a circular saw. To fix a concrete wall that is chipping, you must first cut the concrete around the chipped area. ![]() Have the confidence to try, and you will be successful.If you have noticed chipping on the wall of your basement or other vertical concrete surface, the solution can be a bit complicated. Smooth over the repair with a damp cloth and allow it to set.Ĭoncrete block wall repairs are within the skills of do-it-yourself people. Put the concrete epoxy cement on the caulking gun, open up the tip to draw out a small amount, and squeeze it smoothly into the crack. Concrete epoxy cement expands it dries to make a seal that can withstand a waterspout of several hundred pounds of pressure.Īfter you've smoothed the edges of the crack with the file, trim them into a dovetail shape like the support of a drawer either with the metal file or a wedge. To repair a leaking concrete block wall in a basement, you'll need concrete epoxy cement to make a waterproof seal. Clean off the trowel and use it to smooth the edges when complete. Apply in overlapping layers from side to side, using a generous amount. Fill the hole, working upward from the bottom. Open it by cutting off the tip and squeezing until the contents come out in a bead. Put a tube of combined mortar and concrete caulk into the caulking gun. If your wall has holes as well as cracks, you'll need to use a slightly different material. ![]() Use Mortar and Concrete Caulk to Fill Holes Completely fill the area with adhesive and smooth with a damp cloth. Then, put the tip of the gun near the repair spot and squeeze until the sealant comes out. Trim off the tip to as wide as your little finger to let the caulk flow out. Slide the tube of general-purpose caulking into a tubular caulking gun. Use Caulking to Fix Repairs that Need Adhesive Smooth over it with the point and edge of the trowel. Fill the mortar gap between blocks with it, holding the trowel at an angle and wedging the material in. Load the pointed trowel with concrete and slough off excess on the carrying board. Work quickly so it stays flexible until the job is finished. Prepare the ready-mix concrete blend as per the instructions on the product. ![]() While the wall dries, bring the rest of your materials up to the repair site. Once you're finished, clean off the concrete with a hose to get rid of any dust left over. ![]() Wear work gloves during this process to protect yourself from some nasty scrapes. Then, use a metal file to smooth off any rough mortar bits around the damage. Check all areas that will need repair including cracks and holes.
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