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PGSF WMVD Storm and Combined Sewer - Construction Package 2 Cast-in-Place Concrete <br />Project No. 180162 03 30 00 - 17 <br /> <br />d. Make joints in walls and columns at the underside of floors, slabs, beams or <br />girders and at the tops of footings or floor slabs. <br />e. Cast slab panels in checkerboard patterns not to exceed 40 feet in length and <br />not to exceed 900 square feet in area, with maximum 1 ½ to 1 ratio of side <br />lengths. Minimum lapsed time between placing adjacent panels shall be 3-days. <br />The requirements for size of slab panel is waived if joints are located on the <br />Drawings. <br />2. Vertical construction joints shall have edges grooved or beveled at faces exposed to <br />view including interior faces of basins and tanks. Seal grooves subjected to wetting <br />or weather with joint sealant. <br />3. Continue reinforcing steel and welded wire reinforcement through construction joints. <br />Beams, girders, and floor slabs shall not be constructed over columns or walls until <br />at least one day has elapsed to allow for initial shrinkage in the column or wall. No <br />joint will be allowed between a slab and a beam or girder unless otherwise shown. <br />Joints shall be perpendicular to the main reinforcement. Provide waterstops in <br />construction joints as specified. <br />3.07 INSERTS AND EMBEDMENTS <br />A. Inserts: <br />1. Where pipes, castings, or conduits are to pass through structures, position in forms <br />before placing concrete; or where shown on Drawings or approved by the Owner’s <br />Representative, provide openings in the concrete for subsequent insertion of such <br />pipes, castings, or conduits. Provide waterstops and a slight flare in the form to <br />facilitate grouting and permit the escape of entrained air during grouting. <br />2. Provide additional reinforcement around openings. Use non-shrink grout to infill <br />around inserts. <br />3. Place horizontal conduits and pipes, in slabs and beams, between the top and <br />bottom layers of reinforcement. Spacing and size limitations shall conform to <br />ACI 318. <br />4. Conduits and pipes shall not run directly beneath a column or base plate. <br />5. Position conduit, pipe, and other ferrous items such that there will be a minimum of <br />2-inches clearance between said item and concrete reinforcement. Welding inserts to <br />reinforcement is not permitted. <br />6. The outside diameter of conduit or pipe shall not exceed one-fourth the slab or beam <br />thickness. <br />B. Embedments: <br />1. Gate frames, gate thimbles, special castings, channels, grating frames, or other <br />miscellaneous metal parts to be embedded in concrete shall be secured in the forms <br />prior to concrete placement. <br />2. Embed anchor bolts and inserts in concrete as shown. Provide inserts, anchors, or <br />other bolts necessary for the attachment of piping, valves, metal parts, and <br />equipment.