Blasting operations and requirements.
Concrete rubbed finish.
Mix one 1 part portland cement and one half part fine sand with sufficient water to produce a grout with the consistency of thick paint.
The best way to apply tung oil is actually with 400 grit sandpaper.
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.
Becomes an integral part of the wall.
Trowel finish is the most common and popular finish of concrete used for major types of applications.
Wet surface of concrete to prevent absorption of water from grout and apply grout uniformly with brushes.
Conform to aci 301.
What are the differences in appearance and cost for smooth rubbed grout cleaned and cork float finishes for formed concrete surfaces.
The water plus the rubbing action brings up a cement paste which results in a very smooth plaster like surface.
Pour a generous amount of tung oil directly onto the surface.
Sand the surface and wipe away all the sawdust with a tack cloth.
When finish is not indicated provide smooth form finish as specified above.
Provides uniform surface textures and color.
Wet rubbing is accomplished on green concrete by a slow speed grinding wheel or disc at the same time applying water.
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.
Conform to aci 301.
Prepare surface as described in rubbed finishes above.
Eliminates the high cost of hand rubbed finishing.
Three new surface finishes for as cast formed concrete are defined in the new aci.
A popular easy to apply and long lasting finish is called rubbing when you rub out a new concrete wall you are applying a thin coat of portland cement and literally rubbing it with a sponge float to create an attractive and durable finish.
Trowels are available in both manual and mechanical types.
Here a worker is producing a grout cleaned finish free of bugholes by rubbing a grout into the surface voids.
Fills and levels surface.