Smooth Rubbed Finish Concrete

Finishing process is conducted by slow speed grinding disc wheel at the same time applying water.

Smooth rubbed finish concrete.

How to rub out new concrete walls step 1. What are the differences in appearance and cost for smooth rubbed grout cleaned and cork float finishes for formed concrete surfaces. 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. So the operator can apply water and grind concrete simultaneously.

Trowel finish is the most common and popular finish of concrete used for major types of applications. The water plus the rubbing action brings up a cement paste which results in a very smooth plaster like surface. Grind smooth any drips or bumps of concrete left on the wall. Under aci 301 96 therefore the specifier who wants a smooth off the form finish untouched by rubbing on concrete exposed to public view will have to call this out as a special finish.

You want the surface to be as flat and clean as. Concrete that will not be exposed in the completed structure shall be any form finish as specified in section 03 11 00 concrete forming and aci 301 for rough form finish 2. This will be used for cleaning off your tools. In the earlier version of this specification aci 301 89 a smooth form finish did not require rubbing.

Mix a slurry that is three parts portland. No grout is used other than cement paste that is drawn from the concrete by the rubbing process. Fill one bucket halfway with water. The water and the rubbing action brings up a cement paste which makes concrete very smooth plaster like surface.

A grout cleaned finish is similar to what many contractors call a sack rubbed finish. Concrete to receive membrane waterproofing shall receive a smooth form finish in accordance with aci 301. A smooth rubbed finish should be applied no later than the day after form removal. Types of concrete finishes 1.

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 wetted surface is rubbed with carborundum brick or other abrasive until uniform color and texture are achieved. 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.