The surfaces shall then be thoroughly dampened and rubbed with a no.
Rubbed concrete wall finishes.
Conform to aci 301.
Wet rubbing is accomplished on green concrete by a slow speed grinding wheel or disc at the same time applying water.
Blasting operations and requirements.
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.
This finish gives a decorative rough subtle texture and skid resistance to plain or colored concrete.
How to rub out new concrete walls step 1.
Conform to aci 301.
This will be used for cleaning off your tools.
Apply sandblasted finish to exposed concrete surfaces where indicated.
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.
Then before the mortar dried the sur face would be rubbed with a wad of clean dry burlap to remove surplus mortar and to fill voids.
When finish is not indicated provide smooth form finish as specified above.
Applying hand rubbed finishes to wood.
Grind smooth any drips or bumps of concrete left on the wall.
16 carborundum stone or equal abrasive to create a uniform surface paste.
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.
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.
The water plus the rubbing action brings up a cement paste which results in a very smooth plaster like surface.
You want the surface to be as flat and clean as.
Sand the surface and wipe away all the sawdust with a tack cloth.
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.
Pour a generous amount of tung oil directly onto the surface.
Mix a slurry that is three parts portland.
Instead consider tung oil which gives a harder finish.