Attach an L-shaped wood mold to a damaged corner and fill with concrete.
Chipped concrete corners, whether on concrete benches, tables or steps, are unsightly and look untended. Repairing corners that are showing small or large chips isn't as complicated as it might seem. With quick-setting concrete you can rebuild the chipped corner using a simple mold, also called a form. Fixing damaged concrete corners requires no special skills or knowledge and you can do it in about two days including concrete setting time. Does this Spark an idea?
Instructions
1. Put on a pair of work gloves to protect your skin from the repair materials. Scrub the damaged corner with a wet wire brush and all-purpose cleaner. Rinse the cleaner and debris away with water from a hose.
2. Butt the end of one wood board against the side of the other so the ends are aligned and forming an L. Tape the L together with two pieces of duct tape on the outside and on the inside. This is the repair form or mold.
3. Position the L-shaped wood against the chipped concrete corner so the inside of the wood is flush with the bench corner sides, the table corner sides or the step. The top edges of the wood L should be positioned where you want the repaired corner's top surface to be when you are finished. Tape the wood L to the concrete sides with as many pieces of duct tape required to firmly hold the mold in place.
4. Spray the wood inside the L mold that will contact with the cement with cooking oil. Cooking oil sprays are available at grocery and discount stores. This lubricates the mold so the repaired cement won't adhere to the wood.
5. Apply latex bonding liquid to the damaged cement corner with a paintbrush. This solution will help the new cement adhere and bond with the damaged cement corner.
6. Mix quick-setting cement according to the manufacturer's instructions in a disposable bucket. Stir with a disposable wood paint stir stick.
7. Scoop cement from the bucket with a trowel and insert it into the attached wood mold. The cement must fill the mold while the latex bonding agent is still wet. Overfill the mold with the cement.
8. Slice away the cement with the flat edge of the trowel so it is level with the top edges of the attached mold. Smooth the top surface with the flat side of the trowel.
9. Let the cement dry for about 24 hours or according to the duration specified by the manufacturer's recommendations. Slowly remove the tape and free the wood mold from the repaired step.
Tags: wood mold, cement adhere, cement corner, cement with, concrete corners
