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i <br /> B. Consolidating Concrete: <br /> 1. Use mechanical vibrating equipment for consolidation. <br /> 2. Vertically insert and remove hand-held vibrators at points 18 in.to 30 in.apart. <br /> 3. Do not use vibrators to transport concrete in forms. <br /> 4. Minimum vibrator speed 7,000 rpm <br /> 5. Vibrate concrete minimum amount required for consolidation. <br /> C. Control/Construction Joints: <br /> 1. Provide in slabs and toppings as indicated in the Structural Notes. <br /> 2. For large areas, make alternate pours in a checkerboard pattern. Provide diamond- shaped pours at column <br /> base plates. <br /> 3. Clean and roughen surface of concrete,and remove laitance. <br /> 4. Wet concrete surface and flush with neat cement grout before placing additional concrete. <br /> 5. Pour interior slab on grade and topping tight to walls,without filler. Use kraft paper as a bond breaker. <br /> 6. Install expansion joint filler and cap between exterior concrete slabs and walls, interior slabs, or elsewhere <br /> shown on Drawings. <br /> 7. Provide in walls as indicated in the Structural Notes. <br /> D. Finishing: <br /> 1. Formed concrete: <br /> a. Tops of forms: <br /> 1) Strike concrete smooth at tops of forms. <br /> 2) Float to texture comparable to formed surfaces. <br /> b. Formed surfaces: (Concealed) <br /> 1) As-cast finish. <br /> 2) Patch tie holes and defects after form removal. <br /> 3) Remove fins from surfaces. , <br /> C. Formed surfaces: (Exposed finish concrete): Same as b. above except provide rubbed finish per ACI <br /> 301. <br /> 2. Flatwork: <br /> a. General: <br /> 1) Strike and level concrete. <br /> 2) Do not work surface until ready for floating. <br /> b. Floated finish: Float per ACI 301. <br /> 03300-8 No.99132-CP2 <br />