"The CSDA believes that gloss levels shouldn't be a matter of opinion, but should be based on measurable, quantifiable standards."
-Christopher Bennett, Husqvarna Construction Products
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Know what Concrete Finish you are getting!
If floors are polished correctly, it represents outstanding value for the finish and ongoing maintenance of the floor. The problem with Polished Concrete floors is knowing if what you expect, is what you are getting! * In the absence of an industry standard, many contractors, and suppliers of products within the industry have presented their process and products as a "standard". This has led to multiple 'Standards' that do not offer accountability. |
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How can you Measure a Polished Concrete Finish? To address the concerns around the Lack of Credibility & Accountability, the American Concrete Sawing & Drilling Association (CSDA) developed the first Industry Standard, the ST-115. The standard uses a Roughness Average (Ra) meter to physically measure the texture of the concrete surface microscopically with a Diamond tipped stylus and gives the data as a number that can be referenced to a table that gives the surface measured a grade. Now, a level of finish is achieved by specifying the desired Ra range, holding the contractor to an agreed standard. This means regardless of who is doing the polishing or the condition of the concrete surface, the same floor finish is achieved every time |
Don't just "Roll The Dice" on your polished concrete surface.
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Instruments for Measuring Floor Surfaces Light meters or distinction of image (DOI) meters are tools that tell one side of the story, but they have limitations. A light meter can tell you how much light a floor reflects, but it can’t tell you why that light is being reflected. |