Rubbed Concrete Wall Finishes
Sand the surface and wipe away all the sawdust with a tack cloth.
Rubbed concrete wall finishes. However stone rubbing has to be done soon after the forms are removed within a day or two at the latest while enough moisture is still in the concrete to create a paste that will fill the bug holes. You want the surface to be as flat and clean as. Fill one bucket halfway with water. Immediately after removing the forms form ties shall be broken back a minimum of three quarters inch from the surface honeycomb voids and other surface defects grouted.
Blasting operations and requirements. Applying hand rubbed finishes to wood. The surfaces shall then be thoroughly dampened and rubbed with a no. This finish gives a decorative rough subtle texture and skid resistance to plain or colored concrete.
Grind smooth any drips or bumps of concrete left on the wall. Conform to aci 301. Conform to aci 301. The salt finish concrete surface is obtained by inserting coarse rock salt crystals using rollers on the freshly placed concrete surface and washing it off with streams of water after the concrete is set.
Mix a slurry that is three parts portland. Sacking produced a finish for cast in place concrete surfaces after fins from oils and bond breakers had been removed by filling in pits and air holes by dampening the surface and rub bing mortar all over it. Wet rubbing is accomplished on green concrete by a slow speed grinding wheel or disc at the same time applying water. When finish is not indicated provide smooth form finish as specified above.
How to rub out new concrete walls step 1. The water plus the rubbing action brings up a cement paste which results in a very smooth plaster like surface. This will be used for cleaning off your tools. Cleveland concrete contractor ron simonetti says a smooth rubbed finish done with an abrasive stone should look the same as a grout cleaned sacked finish.
Rubbed finishes smooth rubbed no later than the day following formwork removal wet surface and rub it with an abrasive such as a carborundum brick until a uniform color and texture are produced. The best way to apply tung oil is actually with 400 grit sandpaper. Apply sandblasted finish to exposed concrete surfaces where indicated. Pour a generous amount of tung oil directly onto the surface.