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DocuSign Envelope ID: 313DA256 -1EDE- 4396- A716- 4C53B809027E <br />JERRY M. PASSMORE CENTER ADDITION AND RENOVATION <br />HILLSBOROUGH, NORTH CAROLINA <br />�?M 01[67:711! a 121 ki '.II►[oil <br />A. General: Do not add water to concrete surfaces during finishing operations. <br />B. Float Finish: Begin the second floating operation when bleed -water sheen has disappeared and <br />concrete surface has stiffened sufficiently to permit operations. Float surface with power- driven <br />floats or by hand floating if area is small or inaccessible to power units. Finish surfaces to true <br />planes. Cut down high spots and fill low spots. Refloat surface immediately to uniform <br />granular texture. <br />1. Burlap Finish: Drag a seamless strip of damp burlap across float - finished concrete, <br />perpendicular to line of traffic, to provide a uniform, gritty texture. <br />2. Medium -to- Fine - Textured Broom Finish: Draw a soft - bristle broom across float - finished <br />concrete surface perpendicular to line of traffic to provide a uniform, fine -line texture. <br />3. Medium -to- Coarse - Textured Broom Finish: Provide a coarse finish by striating float - <br />finished concrete surface 1/16 to 1/8 inch (1.6 to 3 mm) deep with a stiff - bristled broom, <br />perpendicular to line of traffic. <br />MMIN-00191-v "N 411111 <br />A. General: Protect freshly placed concrete from premature drying and excessive cold or hot <br />temperatures. <br />B. Comply with ACI 306.1 for cold- weather protection. <br />C. Evaporation Retarder: Apply evaporation retarder to concrete surfaces if hot, dry, or windy <br />conditions cause moisture loss approaching 0.2 lb /sq. ft. x h (I kg /sq. in x h) before and during <br />finishing operations. Apply according to manufacturer's written instructions after placing, <br />screeding, and bull floating or darbying concrete but before float finishing. <br />D. Begin curing after finishing concrete but not before free water has disappeared from concrete <br />surface. <br />E. Curing Methods: Cure concrete by a combination of these as follows: <br />Moisture Curing: Keep surfaces continuously moist for not less than seven days with the <br />following materials: <br />a. Water. <br />b. Continuous water -fog spray. <br />C. Absorptive cover, water saturated and kept continuously wet. Cover concrete <br />surfaces and edges with 12 -inch (300 -mm) lap over adjacent absorptive covers. <br />2. Moisture- Retaining -Cover Curing: Cover concrete surfaces with moisture- retaining <br />cover, placed in widest practicable width, with sides and ends lapped at least 12 inches <br />(300 mm) and sealed by waterproof tape or adhesive. Immediately repair any holes or <br />tears occurring during installation or curing period using cover material and waterproof <br />tape. <br />CONCRETE PAVING 321313-10 <br />