So, it's quite simple, the liquid mixture of direct sand mix says that the roll of explosive seal If your house has concrete, you may notice holes forming due to strong weather or rodents. Most holes can be fixed with a quality mortar mix, although you should use one with a crushed stone aggregate to fill holes more than 1 inch (2.5 cm) deep. Treat holes as soon as you find them to prevent water and rodents from further damaging concrete and entering your home. Before attempting to fill a hole, clean up loose concrete and other debris.
Then mix the mortar, fill the hole and level it to blend in with the surrounding structure. Concrete takes time to cure, so keep the patch moist for several days for a stronger hold. Patch concrete holes is a simple weekend project and can help protect your home for decades. Holes 1 inch or deeper require a mixture of concrete with coarse aggregate of crushed stone, which adheres well to existing concrete.
Shallower holes need a mixture of sand. Whichever type you use (both are available at home care centers), follow these steps. Hydraulic cement would be a reasonable option for repairing small holes in concrete, since that is what it is made for. Be sure to wet the hole first, then pack the cement and level it.
Use a concrete patch kit such as the Sika Fast-Fix Power Patch. It comes with a mixture of 2 pre-measured compounds. Eliminating much of the guesswork when it comes to mixing cement, sand, gravel and water. Smooth the surface with a spatula or trowel.
The anchor cement expands when it hardens. It is mainly used for anchoring bolts in drilled holes in concrete, but it also works well here. Keep the area moist until the patch heals. Clean the concrete hole by removing any loose residue so that the concrete can adhere properly to the existing surface.
Simply pouring wet concrete into a hole in the doorway, sidewalk or basement floor will not allow a lasting repair.