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CONCRETE MASONRY UNIT <br />Section 04300 <br />15-1207 <br />setting). <br />C. Bolts shall be accurately set with templates and held in place to prevent dislocation during <br />grouting. <br />D. Reinforcement, embedded items, and bolts shall be solidly embedded in grout. <br />E. Anchor bolts in face shells shall maintain a minimum of 1/2 inch of grout and face shell. <br />3.08 GROUTED COMPONENTS <br />A. All cells shall be grouted solid. <br />B. Place and consolidate grout fill without displacing reinforcing. <br />3.09 GROUT PLACEMENT <br />A. Grout shall be a workable mix suitable for placing without segregation and shall be <br />thoroughly mixed. Grout shall be placed by pumping or an approved alternate method and <br />shall be placed before initial set or hardening occurs. Grout shall be consolidated by <br />mechanical vibration during placing and reconsolidated after excess moisture has been <br />absorbed, but before workability is lost. The grouting of any section of a wall shall be <br />completed in one day, with no interruptions greater than one hour. <br />B. All reinforcing and wire ties shall be embedded in the grout. The space between masonry <br />unit surfaces and reinforcing shall be a minimum of one bar diameter. <br />C. Horizontal reinforcement shall be placed in bond beam units with a minimum grout cover of 1 <br />inch above steel for each grout pour. The depth of the bond beam channel below the top of <br />the unit shall be a minimum of 1'/2 inches and the width shall be 3 inches minimum. <br />D. Unobstructed grout spaces no less than 2" x 3" in width with fine grout to be provided for low <br />lift grouting techniques, and grout spaces no less than 3" x 3" in width with coarse grout to <br />be provided for high or low lift grouting techniques. Increase minimum size by the width or <br />diameter of obstructions (reinforcing, conduit, etc.). Grout shall be placed so that all spaces <br />do not contain voids. <br />E. When grouting is stopped for more than one hour, terminate grout 1-1/2 inch minimum below <br />top of upper masonry unit, except at bond beam 'h inch below top of upper masonry unit, to <br />form a positive key for subsequent grout placement. <br />F. Grout shall not be handled with aluminum equipment, unless demonstrated that there will be <br />no deleterious effects. <br />G. Low -Lift for CMU Grouted Construction: Where low -lift grouting is used, the method shall <br />conform with CBC Section 2104A.5.1.1.1.1 requirements. Units shall be laid a maximum of 4 <br />feet before grouting, and all overhanging mortar and mortar droppings shall be removed. <br />Grouting shall follow each 4 feet of construction laid and shall be consolidated so as to <br />12 <br />