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B. Mortar for Glass Unit Masonry Assemblies: Comply with ASTM C 270, Proportion Specification for <br />Type S mortar. <br />1. Combine and thoroughly mix cementitious materials, water, and aggregates in a mechanical batch <br />mixer, unless otherwise indicated. Mix mortar to produce a stiff but workable consistency that is <br />drier than mortar for brick or concrete masonry. Discard mortar when it has reached initial set. <br />PART 3 - EXECUTION <br />3.1 EXAMINATION <br />A. Examine sills, jambs, and heads surrounding glass unit masonry assemblies for compliance with <br />requirements for installation tolerances and other conditions affecting performance. <br />1. Proceed with installation only after unsatisfactory conditions have been corrected. <br />3.2 INSTALLING GLASS BLOCK WITH MORTAR <br />A. Set glass block with completely filled bed and head joints, with no furrowing, accurately spaced and <br />coordinated with other construction. Maintain 3/8 -inch (10 -mm) exposed joint widths, unless otherwise <br />indicated. <br />B. Install panel reinforcement in horizontal joints at spacing indicated and continuously from end to end of <br />panels; comply with the following requirements: <br />1. Vertical Spacing of Panel Reinforcement for Exterior Panels: Every other course but not more <br />than 16 inches (407 mm) o.c., starting with first course above sill. <br />2. Vertical Spacing of Panel Reinforcement for Interior Panels: Not more than 16 inches (407 mm) <br />o.c.. <br />3. Do not bridge expansion joints with panel reinforcement. <br />4. Place panel reinforcement in joints immediately above and below all openings within glass unit <br />masonry assemblies. <br />5. Lap panel reinforcement not less than 6 inches (150 mm) if more than 1 length is necessary. <br />6. Embed panel reinforcement in mortar bed by placing lower half of mortar bed fust, pressing panel <br />reinforcement into place and covering with upper half of mortar bed. <br />C. Install panel anchors at locations indicated and in same horizontal joints where panel reinforcement <br />occurs. Extend panel anchors at least 12 inches (300 mm) into joints, and bend within expansion joints at <br />edges of panels and across the head. Attach panel anchors as follows: <br />1. For new unit masonry assemblies, embed other ends of panel anchors, after bending portions <br />crossing expansion joint, in horizontal mortar joints closest in elevation to joints in glass unit <br />masonry assemblies containing panel anchors. <br />D. Use rubber mallet to tap units into position. Do not use steel tools, and do not allow units to come into <br />contact with metal accessories and frames. <br />E. Use plastic spacers in mortar joints to produce uniform joint widths and to prevent mortar from being <br />squeezed out of joints. <br />1. If temporary wedges are used, remove them after mortar has set and fill voids with mortar. <br />Wabasso Beach Park <br />Indian River County <br />DAA Project No. 6008 <br />04815-4 <br />