The 9 Fundamentals
The 9 Fundamentals

Specifying a ground, honed, and polished concrete floor can be overwhelming.

THERE IS A SEEMINGLY NEVER-ENDING LIST OF DENSIFIERS, COLORANTS, EQUIPMENT, AND DIAMOND TOOLING, ALONG WITH COUNTLESS TRADESMEN AND SUBCONTRACTORS OF ASSORTED SKILL LEVELS. WITH ALL THESE VARIABLES, HOW IS IT POSSIBLE TO ACHIEVE A FLOOR THAT MEETS THE EXPECTATIONS OF THE OWNER, ARCHITECT, AND CONTRACTORS WHILE STILL KEEPING THE GOAL OF SUSTAINABILITY? 1 The work of Howard Janey, CSI, CDT (Janey Associates) is acknowledged in creating this article. Janey is a founding board member of the Decorative Concrete Council (DCC), an affiliate of the American Society of Concrete Contractors (ASCC).

Leaving a specification to read "polished concrete" is simply not enough. Ali too often, construction documentation is provided to a contractor and the floor still does not meet expectations. Efforts to standardize concrete polishing have been made by various groups, but suggesting a need for standards is different from implementing them. In other words, the current standards already in place can help create the needed specification for a successful floor-but only when followed. 2 Most of these standards are performance-based; there is currently nothing for increased gloss, abrasion resistance, or coefficiency readings, but some definitions have been proposed by the Concrete Polishing Association of America (CPAA) An architect may specify a gloss level based on a metal or resin bond grit level to yield that result, but if the abrasive is used on a floor burnisher instead of a concrete grinder, the desired sheen may actually vary substantially. Thus, specifying the gloss reading can make clear what the desired floor should be.