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' b . Minor defective areas , as judged by the Owner ' s representative <br /> including honeycomb, air bubbles, holes resulting from removal of ties, <br /> and those resulting from leakage of forms shall be patched with grout <br /> ' without resorting to chipping . Minor bulges and offsets at form joints <br /> shall be finished as specified herein below. <br /> ' Be Uniform Surfaces - Flatwork <br /> General : <br /> Grade and screed the surfaces to the exact elevation, or slope shown or <br /> required. Make proper allowances for setting beds for ceramic tile . After <br /> ' screeding tamp mixture thoroughly to drive the coarse aggregate down from <br /> the surfaces and apply the applicable finish specified hereinafter. Always <br /> slope exterior walks away from the building at 1 /4 " per foot. Uncovered <br /> walks slope at 1 /4 " per foot or crown. Covered walks between buildings <br /> always slope to drain to the exterior and away from the buildings . At cross <br /> intersections of the walks, and at exterior doors, warp the surfaces to drain <br /> ' water from the walls . Provide control joints as indicated on drawings . <br /> Follow the requirements and procedures of ACI 301 . <br /> ' 2 . Finishes - Definitions (See also ACI 301 ) <br /> a. Scratched Finish: <br /> ' After concrete has been placed, struck off, consolidated and leveled <br /> to a Class B tolerance, surface shall be roughened with stiff brush, <br /> ' rates or metal lath roller, before final set. <br /> b . Floated Finish : <br /> After concrete has been placed, struck off, consolidated and leveled, <br /> concrete shall not be worked further until water sheen has <br /> disappeared and/or when mix has stiffened sufficiently to permit <br /> proper operations of a power driven float. Consolidate with power <br /> driven float, check trueness of surface, fill low spots and cut sown <br /> high spots to achieve Class B tolerance . Then, re-float to uniform, <br /> ' smooth, granular texture . <br /> c . Troweled Finish : <br /> ' Finish same as above for floated finish and in addition, steel trowel <br /> the surface by hand to produce a smooth, glassy, impervious surface <br /> free of trowel marks to a Class A tolerance . On surfaces intended to <br /> ' support floor coverings , defects of sufficient magnitude to show <br /> through the floor covering shall be removed by grinding . <br /> ' d . Broom Finish : <br /> Finish same as above for floated finish to a Class B tolerance and <br /> tthen draw a broom or burlap belt across surface transversely. <br /> 03300-7 <br />