log b â¡ ( x y ) = log b â¡ ( x y â 1 ) = log b â¡ ( x ) + log b â¡ ( y â 1 ) = log b â¡ ( x ) â log b â¡ ( y ) {\displaystyle \log _{b}{\bigg (}{\frac {x}{y}}{\bigg )}=\log _{b}(xy^{-1})=\log _{b}(x)+\log _{b}(y^{-1})=\log _{b}(x)-\log _{b}(y)}.
If you wanted an 800 grit polish, which is still very reflective, there arenât as many steps, so the price is decreased. Polished concrete, in general, can range anywhere from $2.00 per square foot to $7.00 per square foot. Glossy Floors, before giving an estimate, takes the time to examine the floor very carefully.
1 Existing concrete Floor Polishing-An existing concrete floor that can be polished. 2  New concrete Floor Polishing-A new concrete slab that can be specified prior to polishing. 3  Polished concrete Overlays-A cement based overlay applied at 10mm to 40mm that can be diamond polished.ypically, concrete is not considered polished before 400 grit which is known as honed concrete, polished concrete is normally finished to either the 800, 1500, or 3000 grit level depending on the shine and reflection specified.