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SITE CONCRETE <br />Section 03000 <br />15-1207 <br />ramps. Brooming direction shall run perpendicular to slope to form non -slip surface. <br />2. Under no circumstances can water be added to the top surface of freshly placed <br />concrete. <br />B. Curb Finishing: Steel trowel with light broom finish. <br />C. Joints and Edges: Mark -off exposed joints, where indicated, with %" radius x 1" deep jointer <br />or edging tool. Joints to be clean, cut straight, parallel or square with respect to concrete <br />walk edge. Tool all edges of control joints, walk edges, and wherever concrete walk adjoins <br />other material or vertical surfaces. Expansion joints shall be constructed as detailed on <br />plans. <br />1. The expansion joints shall be full depth as shown in the plan details. Failure to do so <br />will result in non-compliance and shall be immediately machine cut by the contractor at <br />his expense. <br />D. Exposed Concrete Surface Finishing (not including top surface of flatwork): Remove fins and <br />rough spots immediately following removal of forms from concrete which is to be left exposed. <br />Damaged and irregular surfaces and holes left by form clamps and sleeves shall be patched <br />with grout. Tie wires are to be removed to below exposed surface and holes pointed up with <br />neat cement paste similar to procedure noted under "Patching" below. Removal of tie wires <br />shall extend to distance of 2" below established grade lines. Ends of tie wires shall be cut off <br />flush at all other, unexposed locations. Care shall be taken to match adjacent finishes of <br />exposed concrete surface. After patching, all concrete that is to remain exposed, shall be <br />sacked with a grout mixture of 1 -part cement, 1 1/2- parts fine sand and sufficient water to <br />produce a consistency of thick paint. After first wetting the concrete surface, apply mixture <br />with a brush and immediately float entire surface vigorously using a wood float. Keep damp <br />during periods of hot weather. When set, excess grout shall be scraped from wall with edge <br />of steel trowel, allowed to set for a time, then wiped or rubbed with dry burlap. Entire finishing <br />operation of any area shall be completed on the same day. This treatment shall be carried to <br />4" below grade, and all patching and sacking shall be done immediately upon removal of the <br />forms. <br />3.10 CURING <br />A. Cured Concrete in Forms: Keep forms and top on concrete between forms continuously wet <br />until removal of forms, 7 days minimum. Maintain exposed concrete in a continuous wet <br />condition for 14 days following removal of forms. <br />B. Concrete paving, Curb, Curb and gutter, Valley Gutter: Cure utilizing Curing Compound. If <br />applicable, the Contractor shall verify that the approved Curing Compound is compatible with <br />the approved colorant system. Upon completion of job, wash clean per manufacturer's <br />recommendations. <br />Curing compound shall be applied in a wet puddling application. Spotty applications <br />shall be reason for rejection and possibly concrete removal and replacement at the <br />contractor's expense with no compensation from the owner. <br />C. No Curing Compound shall be applied to areas scheduled to receive resilient track surface <br />including, curbs, ramps, run ways, etc. <br />ilk <br />