Smooth Rubbed Finish Concrete

After the concrete is laid in the formwork and leveled the trowel is used to smooth and fine level the surface of concrete.

Smooth rubbed finish concrete.

Types of concrete finishes 1. 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. You want the surface to be as flat and clean as. The wetted surface is rubbed with carborundum brick or other abrasive until uniform color and texture are achieved.

The water plus the rubbing action brings up a cement paste which results in a very smooth plaster like surface. Mix a slurry that is three parts portland. A smooth rubbed finish should be applied no later than the day after form removal. How to rub out new concrete walls step 1.

Wet rubbing is accomplished on green concrete by a slow speed grinding wheel or disc at the same time applying water. Grind smooth any drips or bumps of concrete left on the wall. No grout is used other than cement paste that is drawn from the concrete by the rubbing process. 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.

Finishing process is conducted by slow speed grinding disc wheel at the same time applying water. The surface just before finishing. Trowel finish is the most common and popular finish of concrete used for major types of applications. 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.

This will be used for cleaning off your tools. Concrete to receive membrane waterproofing shall receive a smooth form finish in accordance with aci 301. A grout cleaned finish is similar to what many contractors call a sack rubbed finish. In the earlier version of this specification aci 301 89 a smooth form finish did not require rubbing.

What are the differences in appearance and cost for smooth rubbed grout cleaned and cork float finishes for formed concrete surfaces. So the operator can apply water and grind concrete simultaneously. Fill one bucket halfway with water.