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CONCRETE MASONRY UNIT Section 04300 15-1207 must be made, remove mortar and replace. G. Perform job site cutting of masonry units with proper tools to provide straight, clean, unshipped edges. Prevent broken masonry unit corners or edges. H. Cut mortar joints flush where resilient base is scheduled. I. All masonry shall be built to preserve the unobstructed vertical continuity of the cells to be filled. All head joints shall be solidly filled with mortar for a distance in from the face of the wall or unit not less than the thickness of the longitudinal face shells. J. Walls and cross webs forming such cells to be filled shall be full bedded in mortar to prevent leakage of grout. K. Bond shall be provided by lapping units in successive vertical courses. L. At the time of laying, all masonry units shall be free of dust and dirt. 3.05 MASONRY FLASHINGS A. Lap end joints minimum 6 inches and seal watertight. B. Use flashing manufacturer's recommended adhesive and sealer. 3.06 PLACEMENT OF REINFORCING A. Provide 1 bar diameter minimum clear space between masonry unit and reinforcing. Horizontal reinforcing in bond beams to have a minimum grout cover of 1 inch. B. Place reinforcing bars at locations indicated on structural drawings and secure in place. C. Install reinforced unit masonry lintels over openings. D. Reinforce openings as detailed on structural drawings. E. Securely fasten reinforcing bars from displacement at intervals not exceeding 192 bar diameters. Maintain position within 1/2 inch of dimensioned position. F. Lap splices per Section 03200. G. Allow masonry lintels to attain specified strength before removing temporary supports. 3.07 PIPE, CONDUITS AND EMBEDDED ITEMS A. No pipe shall be embedded in masonry work except rigid electrical conduit of 1" diameter or less may be embedded when shown on structural drawings. B. Embedded items shall be securely anchored against moving prior to grouting (i.e. no wet 11