Baking soda
1st baking soda & water on the spill. let sit about 15 min. This neutalizes the acid. If the acid ate the top of the concrete only, you can go to Lowes in the section where the concrete products are, they sell a "stone" with a small handle on it ( about $20) that you can sand the concrete by hand. If it is too bad, they sell a repair patch in small buckets that can be troweled on.
|