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F. Perform job site cutting of masonry units with proper tools to provide straight, clean, <br />unchipped edges. Prevent broken <br />masonry unit corners or edges. <br />G. Mortar joints shall be full between unit face shells. No gaps in mortar joints are permitted. <br />All gaps shall be corrected and filled as work progresses. <br />3.04 REINFORCEMENT AND ANCHORAGES - REINFORCED UNIT MASONRY <br />A. Install horizontal joint reinforcement 16 inches on center. <br />B. Place masonry joint reinforcement in first horizontal joints above and below openings_ <br />Extend minimum 24 inches each side of opening. <br />C. Lap joint reinforcement ends minimum 6 inches. Extend minimum 24 inches each side of <br />openings without lap joints. <br />D. Support and secure reinforcing bars from displacement. Maintain position within 1/2 inch of <br />dimensioned position. <br />E. Anchors: 24 inches oc where unit masonry abuts existing masonry and concrete. <br />F. Wall ties: Bond intersecting interior walls with wall ties at each course (where continuous <br />reinforcing is not provided). <br />3.05 LINTELS <br />A. Install precast concrete lintels over window openings, louver openings, door openings and <br />pipe openings as required. <br />Be Maintain minimum 6 inch bearing on each side of opening. <br />3.06 ENGINEERED MASONRY <br />A. Lay masonry units with core cells vertically aligned and cavities between wythes clear of <br />mortar and unobstructed. <br />Be Place mortar in masonry unit bed joints back 1/4 inch from edge of unit grout spaces, bevel <br />back and upward. Permit mortar to cure 7 days before placing grout, <br />C. Reinforce masonry unit cores and cavities with reinforcement bars and grout as indicated <br />below (unless otherwise noted on the Plans). <br />1. First cell of blocks abutting joints of door frames. <br />2. One cell at free end of partitions and walls. <br />3. At bearing points, fill masonry cells with grout minimum one cell. <br />044572017 <br />04340-4 <br />