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- 1). Place a 1/4-inch masonry bit in your electric drill.
- 2). Drill a series of holes in a straight line diagonally across the damaged tile drilling completely through the tile. Each hole should be less than 1 inch apart.
- 3). Split the tile along the drilled holes with a hammer and 1/2-inch wide chisel. Be sure to wear safety gloves and glasses.
- 4). Remove loose pieces from the chiseling.
- 5). Use a flat bar to pry the remaining pieces of the tile off the floor. Be extra careful around the surrounding tiles to prevent damage to them.
- 6). Scrape away all of the old mortar from the floor using a combination of the flat bar and the chisel.
- 7). Vacuum the remaining pieces of tile and any tile dust with a shop-vac.
- 8). Apply a layer of tile adhesive to the floor with a putty knife. Rake the layer with a 1/4-inch notched trowel to add texture.
- 9). Press the new tile firmly down on to the tile adhesive. Place a wooden block on the tile and gently hammer on the block with the handle of a hammer to set the tile. Allow the tile to set for at least eight hours.
- 10
Mix the powdered grout in a small bucket with water. Follow the directions on the powdered grout package for the proper ratio and consistency of the grout. Allow the grout to sit for five minutes and then stir once more. - 11
Using a rubber float, force the grout into the spaces between the new tile and the surrounding tiles. Continue applying grout until the spaces are level with the surrounding grout lines. - 12
Once the grout begins to cure and leaves a hazy layer on the tile, clean the face of the tile with a damp rag. - 13
Wait two hours and then buff the tile with a clean cloth to remove any excess grout. - 14
Allow the tile to set for 24 hours before using the space.
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