Repairing Surface Cracks In New Concrete

Put the mix or compound in a large bucket and add water as directed on the label.

Repairing surface cracks in new concrete.

Cracks that occur before hardening usually are the result of set tlement within the concrete mass or shrinkage of the surface plastic shrinkage cracks caused by rapid loss of water while the concrete is still plastic fig. Brush the surface of the patching compound with a dry paintbrush to texture the surface if desired. Since concrete cannot shrink around a corner stress will cause the concrete to crack from the point of that corner. Fill the crack up to the surrounding concrete surface.

For big or deep cracks use a concrete mix or patching compound that contains gravel. While nearly invisible it is important to remember that plastic shrinkage cracks don t just exist on the surface they extend throughout the. Smooth the surface of the patch with the trowel feathering the compound into the surrounding concrete. Plastic shrinkage cracks are typically very narrow in width and barely visible.

We would like to show you a description here but the site won t allow us. If you have a lot of cracks you may prefer to use dry concrete mix or concrete patching compound instead.