Repairing a crack in concrete:

These are steps in fixing cracked concrete.

Step 1:

Open the crack a minimum of 1/4" inch wide by 1/4" inch deep with a crack chaser diamond blade and angle grinder or skill saw. Make sure to remove loose or spalled concrete pieces and vacuum clean.

Step 2:

Fill the crack with silica sand to prevent the filler from disappearing beneath the crack as well for additional strength.

Step 3:

Mix the epoxy or polyurethane filler material

Step 4:

inject or pour the filler material into the crack and let it settle, top up any sagging areas or add more sand if necessary.

Step 5:

Sand, scrape or grind off excess material to leave a smooth finish.