How to Repair Wide Cracks in Concrete- Cal State Concrete
Extensive cracks in concrete are best mend and sealed with a concrete patching amalgam. Smaller cracks, less than 1/4 inch wide, can be restored with a concrete caulk or liquid filler. Patching compounds classically are mixed with water and applied with a bail. They have a texture similar to grout and can be smoothed and textured to combine with the surrounding area. However, the color of the patch will look like fresh concrete and will not match the old concrete. Thrashing the patch entirely requires painting the facade with an apposite concrete paint. How to Repair Wide Concrete Cracks The secret to fixing wide concrete cracks is to dent the sides of the crack to give it an reversed "V" shape. This helps the repair stuff to "key" into the crack, creating a mechanical attachment in addition to the chemical bond between the patch substance and the concrete. 1. Chisel the crack with a hammer and masonry chisel to expand the base of the crack an