All exposed surfaces of concrete walls, columns, ceilings, and parapets shall be hand cleaned and rubbed to remove stains, foreign matter, burrs, fins, and any other surface irregularities after removal of form ties and after any repairs and patching work has been completed. Exposed surfaces shall be left true to line and plane, and free from form marks and other imperfections.
Cosmetic coatings used to disguise underlying defects are unacceptable.
All exterior concrete ramps, walks, loading docks, aprons, and other such surfaces subject to wetting shall be finished with a non-slip broom finish. 3.0 Drainage Concrete floors with floor drains shall be sloped uniformly to the floor drain. The surface shall be tested at the earliest practical time to assure that water will flow to the drain. All exterior walls should have drainage in the form of gravel and leech drain pipes properly pitched in the direction of flow. 4.0 General 4.1 Exposed concrete finishes that are cast in place must receive a coating system.