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40 <br />11 <br />for hand -spreading and consolidation. Consolidate <br />with care to prevent dislocation of reinforcing, <br />dowels, and joint devices. <br />I D. Deposit and spread concrete in a continuous operation <br />between transverse joints, as far as possible, if <br />interrupted for more that 1/2 hour, place a <br />construction joint. Do not use concrete pumps unless <br />they are capable of delivering 3/411 rock mix. <br />i <br />3.03 OOINTS: <br />A. General; construct expansion, weakened -plane <br />(contraction), and construction joints true -to -line <br />with face perpendicular to surface of concrete. <br />Construct transverse joints at right angles to the <br />centerline, unless otherwise indicated. <br />B. Tooled Joints- Form weakened -plane joints in fresh <br />concrete by grooving top portion with a recommended <br />cutting tool and finishing edges with a jointer. <br />C. Construction Joints: Place construction joints at the <br />end of pours and at locations where placement <br />operations are stopped for a period of more than 1/2 <br />hour, except where such pours terminate at expansion <br />joints. <br />D. Sawcut Control Joints shall be cut a minimum of 1" <br />deep within 29 hours of concrete placement and located <br />per drawings. <br />3.09 CONCRETE FINISHING: <br />A. After striking -off and consolidating concrete, smooth <br />surface by spreading and floating. Use hand methods <br />only where mechanical floating is not possible. Adjust <br />floating to compact surface and produce uniform <br />texture. <br />B. After floating, test surface Lo trueness with a 10, <br />straightedge. Distribute concrete as required to <br />remove surface irregularities, and refloat repaired <br />areas to provide a continuous smooth finish. <br />C. Work edge - of slabs, bcxCk top edge of Curb, and formed <br />joints with an edging tool, and round to 1/2" radius, <br />unless otherwise indicated. Eliminate tool marks on <br />concrete surface. <br />D. After completion of floating and when excess moisture <br />or surface sheen has disappeared, complete surface <br />finishing, as follows: <br />E, Broom finish, by drawing a fine -hair broom across <br />concrete surface,perpendicular to line of traffic. <br />repeat operation if required to provide a fine lite <br />texture acceptable to Architect. <br />02515-3 <br />