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Concrete grinder
Machine for polishing or grinding hardened concrete / From Wikipedia, the free encyclopedia
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A concrete grinder is an abrasive machine for polishing or grinding hardened concrete. Concrete grinders can come in many configurations, the most common being a hand-held general purpose angle grinder, but it may be a specialized tool for countertops or floors. Angle grinders are small and mobile, and allow one to work on harder to reach areas and perform more precise work.[1]
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There are also purpose-built floor grinders that are used for grinding and polishing marble, granite and concrete.[2] Machines that grind concrete floors are usually made to handle much more stress and will have more power to drive the unit as concrete has a much higher sliding friction than marble or granite which is also worked wet, therefore with less friction. In fact some types of marble will spark when it is ground dry, causing deep damage to the marble surface. Floor grinders are most suitable to polishing a concrete floor slab as it can cover large surfaces more quickly, and they have more weight on them, therefore making the actual grinding process more efficient.[3] Prominent manufacturers of these concrete grinding machines have significantly contributed to construction and rehabilitation projects worldwide.[4]
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