Conform to aci 301.
Concrete floor smooth finish specifications.
When finish is not indicated provide smooth form finish as specified above.
Floors are classified based on the intended use of the floor see the table below that was adapted from aci 302 1 r 04 concrete floor and slab construction.
A floor flatness rating of 40 5 and a floor levelness of 35 5 is required on newly placed concrete.
Each class includes what aci 302 calls special considerations and suggested finishing techniques.
Scope according to grit sizes shown below.
A requirement for greater slip resistance is often a driver to explore other options such as the inclusion of retardants or shot blasting.
Concrete concrete floor finishing standard engineering specification issued and types of finish nov 1966 sb 10 u this page revised nov 1983 standard nov 1983 page 1 of 4 reaffirmed 1.
Blasting operations and requirements.
Conform to aci 301.
The most prevalent texture or finish for internal exposed concrete floors is polished either power trowelled for a smooth solid appearance or diamond ground to expose the aggregates.
Larger grit sizes are.
Apply sandblasted finish to exposed concrete surfaces where indicated.
The form facing material shall produce a smooth hard uniform texture on the concrete.