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.
Rubbed concrete wall finishes.
Conform to aci 301.
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.
Polished concrete wall made by us with cebos pozzolano plaster.
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.
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.
The surfaces shall then be thoroughly dampened and rubbed with a no.
When finish is not indicated provide smooth form finish as specified above.
Apply sandblasted finish to exposed concrete surfaces where indicated.
Blasting operations and requirements.
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.