Polished concrete is concrete that has been processed through a series of mechanically ground "polishing/grinding" steps similar to the production of terrazzo. This process also includes the use of a penetrant chemical known as a hardener. The concrete densifier/hardener penetrates into the concrete and creates a chemical reaction to help harden and dust proof the surface. During concrete polishing the surface is processed through a series of steps (in general a minimum of 6 grinding steps of processing is considered polished concrete) utilizing progressively finer grinding tools. The grinding tools are progressive grits of industrial diamonds in a bonded material such as metal/hybrid/resin often referred to as diamond polishing pads. Polished Concrete is a "Green" flooring system and LEED approved. Dyes designed for concrete polishing are often applied to add color to polished concrete as well as other options such as scoring, creating radial lines, grids, bands, borders, and other designs.

 

Polished concrete is considered a form of sustainable design flooring, as it utilizes a material that has already been placed.

 

Polished concrete floors are considered low-maintenance, as they are more durable and easier to clean than many flooring options. Its high coefficient of friction can make it non-slippery. Polished concrete reduces dust mite and allergen problems, and does not support mold growth. Anecdotal evidence suggests highly reflective polished concrete reduces lighting needs and can improve natural lighting. Polished concrete flooring is hard wearing and will not chip or dent like softer surfaces such as timber and tiles. Polished concrete is easily maintained with the use of clean water or a neutral balance PH cleaner. There is never a need for wax to be added as it will only dull the finish. A concrete floor that has been hardened and polished will have an extremely long life expectancy compared to other flooring. For example, some tile floors may only last 10–20 years, but a polished concrete floor that has been properly maintained may give 100+ years of service.

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