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<br />03300 - 18/22 <br />2. Immediately after completion of curing the surface shall be sprayed with a <br />damp proofing agent consisting of an asphalt emulsion. Application shall be in <br />2 coats. The first coat shall be diluted to one-half strength by the addition of <br />water and shall be sprayed on so as to provide a maximum coverage rate of <br />100 square feet per gallon of dilute solution. The second coat shall consist of <br />an application of the undiluted material, and shall be sprayed on so as to <br />provide a maximum coverage rate of 100 square feet per gallon. Damp <br />proofing material shall be as indicated above. <br />3. As soon as the material has taken an initial set, the entire area thus coated <br />shall be coated with whitewash. Any formula for mixing the whitewash may be <br />used if it produces a uniformly coated white surface and remains until placing <br />of the backfill. If the whitewash fails to remain on the surface until the backfill <br />is placed, the CONTRACTOR shall apply additional whitewash. <br />3.08 CONCRETE FINISHES: <br />A. General: Surfaces shall be free from fins, bulges, ridges, offsets, honeycombing, or <br />roughness of any kind, and shall present a finished, smooth, continuous hard <br />surface. Allowable deviations from plumb or level and from the alignment, profiles, <br />and dimensions indicated are defined as tolerances and are indicated herein. These <br />tolerances are to be distinguished from irregularities in finish as described herein. <br />Aluminum finishing tools shall not be used. <br />B. Formed Surfaces: <br />1. No treatment is required after form removal except for curing, repair of <br />defective concrete, and treatment of surface defects. Where architectural <br />finish is required, it shall be as indicated. <br />C. Unformed Surfaces: <br />1. After proper and adequate vibration and tamping, unformed top surfaces of <br />slabs, floors, walls, and curbs shall be brought to a uniform surface with <br />suitable tools. Immediately after the concrete has been screeded, it shall be <br />treated with a liquid evaporation retardant. The retardant shall be used again <br />after each work operation as necessary to prevent drying shrinkage cracks. <br />The classes of finish for unformed concrete surfaces are designated and <br />defined as follows: <br />Unformed Surface Finish Schedule <br />Area Finish <br />Grade slabs and foundations to be covered with <br />concrete or fill material U1 <br />Floors to be covered with grouted tile or topping grout U2 <br />Water bearing slabs with slopes 10 percent and less U3 <br />Water bearing slabs with slopes greater than 10 <br />percent U4 <br />Slabs not water bearing U4 <br />Slabs to be covered with built-up roofing U2 <br />Interior slabs and floors to receive architectural finish U3 <br />Top surface of walls subject to foot traffic U4 <br />Top surface of walls not subject to foot traffic U3 <br />Floors to receive surface hardener U5