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Gateway Park Center PERKINS+WILL <br /> 810495.000 <br /> 12/06/18 <br /> <br />REINFORCED MASONRY <br /> 04 22 13 - 11 <br />4. In bond beams, use special units or modify regular units to allow placement of <br />horizontal bars. Place small mesh, expanded metal lath or wire screening in <br />mortar joints under bond beam courses over cells of non-reinforced vertical <br />cells. <br />D. Cleanouts: Provide cleanout openings at each vertical bar at the base of walls in <br />which one of the following applies: <br />1. Grout pour height exceeds 5 feet. <br />2. Vertical bars are not otherwise fastened to prevent displacement. In this case, <br />use cleanout to securely tie bar in position. <br />3. To remove dust, dirt, mortar droppings, loose pieces of masonry and other <br />foreign materials from cell and top of support in cells to be grouted. <br /> <br />Construct cleanout by cutting opening in face shell. Construct cleanouts with <br />openings of sufficient size to permit removal of debris and tying of bars. Minimum <br />size is 3 inches x 3 inches. After cleaning and inspection, close cleanout opening and <br />brace closure to resist grout pressure. <br />E. Grouting: Do not place grout until entire height of masonry to be grouted has <br />attained sufficient strength to resist grout pressure. <br />1. Comply with requirements of ACI 530.1/ASCE 6/TMS 602. <br />2. Place grout within 1 1/2 hours from introducing water in the mixture and prior <br />to initial set. <br />3. Confine grout to the areas indicated. <br />4. Place grout by pumping into grout spaces unless alternate methods are <br />acceptable to the Architect. <br />5. Place grout continuously in lintels and bond beams. Grout walls in lifts not <br />exceeding 5 feet or the elevation of top of bond beam, whichever is lower. <br />6. If grout pour during one day exceeds 5 feet, grout in lifts 5 feet each or less, <br />with not less than 30 minutes and not more than 1 hour between lifts. <br />7. Terminate grout 1-1/2 inches below bond beam course or where cell above is to <br />be grouted. <br />8. Place grout in bond beam course before filling vertical cores above bond beam. <br />9. Consolidate grout with mechanical vibrators having a 3/4 inch diameter head. <br />Vibrate each lift and reconsolidate after 10 minutes. Grout pours 12 inches high <br />or less may be puddled in lieu of mechanical vibration. <br />3.11 FIELD QUALITY CONTROL <br />A. Testing and Inspecting: Owner will engage special inspectors to perform tests and <br />inspections and prepare reports. Allow inspectors access to scaffolding and work <br />areas, as needed to perform tests and inspections. Retesting of materials that fail to <br />comply with specified requirements shall be done at Contractor's expense. <br />1. Begin masonry construction only after inspectors have verified proportions of <br />site-prepared mortar. <br />2. Place grout only after inspectors have verified compliance of grout spaces and of <br />grades, sizes, and locations of reinforcement.