Coatings cover the void-filled surface and polishing reprocess the void-filled surface, but sometimes the answer may be to incorporate both processes for a final solution. However, relevant benchmarks must be included to ensure proper installation.
Building owners, designers, and residents/tenants are increasingly using exposed polished concrete floors for a variety of interior spaces because of its pleasing aesthetics. A polished concrete topping slab can be used to also encase embedded hydronic heating systems.
The lack of standardized terminology results in bids, including fully refined, ground, and polished concrete floors as well as surface-applied sealers or coatings. Using contractor terminology to build a means and methods specification always backfires, and the nature of the language leaves the design firm and owner at risk for poor outcomes.
Earlier this month, the Concrete Polishing Council (CPC) of the American Society of Concrete Contractors (ASCC) released a revision to Bonded Abrasive Polished Concrete Specification. The document was updated because the original specification did not meet standard terminology or layout.
In the world of architectural exposed concrete floors, few considerations are more important than coefficient of friction (COF). French-American architect Paul Philippe Cret (1876-1945) once asked, “Of the many doorways one passes, most are well enough built—but which ones are worth a second look?”
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