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3.08 JOINTS: <br />A. Construction and control joints shall be placed as indicated on drawings (when <br />shown). <br />B. Use of construction and control joints, when not shown on the drawings, shall be <br />in accordance with ACI 318, Chapter 6.4, and subject to approval of the Engineer. <br />C. Joints not specified on the design drawings shall be in accordance with ACI 301, <br />Chapter 6, and Section 11.5. <br />D. All reinforcing shall be continued across construction joints. Keys shall be <br />provided only if required by the design drawings. <br />E. When called for on the design drawings, the concrete surface at construction <br />joints shall be roughened uniformly to approximately 1/4 inch, and laitance, <br />loosened aggregate or damaged surface concrete shall be removed. <br />3.09 FINISHING CONCRETE: <br />A. Form ties shall be broken back 1 inch from the surface of the concrete. The <br />remaining holes shall be filled by seal patching using a 1 -to -2 mix of cement -sand <br />mortar. <br />B. All voids and honeycomb in formed concrete shall be filled with a 1 -to -2 cement - <br />sand mortar mix. Form ridges and other projections shall be removed <br />immediately, after forms are removed. Exposed form concrete shall be rubbed <br />with a carborundum brick and a thin cement grout shall be applied as necessary to <br />produce a true, even, finished surface. Grout shall extend at least 3" below <br />finished backfill grade on grade walls. <br />C. Concrete surfaces left low for grouting shall be roughened to expose aggregate, <br />and all loose particles and laitance shall be removed. Anchor bolt threads shall be <br />wire brushed, and greased, after concrete has set. Nuts and washers shall be <br />placed on the bolts. <br />3.10 FINISH FOR FLOORS: <br />A. Unless otherwise noted slabs shall be screeded, floated and steel troweled. <br />B. Special care shall be exercised on floors that have drains or trenches. Floors shall <br />be sloped uniformly to provide even fall for drainage. <br />3.11 SCREEDING, FLOATING, TROWELING, BROOMING & NONSLIP FINISHING: <br />A. Surfaces shall be screeded to the elevations shown on the drawings. "Con -Film" <br />