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<br />Copyright 2005 AIA <br /> <br />MASTERSPEC Short Form <br /> <br />02/05 (R 05/06) <br /> <br />K. High-Strength Bolts and Nuts: ASTM A 325 (ASTM A 325M) or ASTM A 490 <br />(ASTM A 490M), Type 1, heavy hex steel structural bolts; heavy hex carbon-steel nuts, <br />ASTM A 563 (ASTM A 563M); and hardened carbon-steel washers, ASTM F 436 <br />(ASTM F 436M). <br /> <br />1. Do not zinc coat ASTM A 490 (ASTM A 490M) bolts. <br /> <br />L. Zinc-Coated Finish: For exterior steel items[, steel in exterior walls,] and items indicated for <br />galvanizing, apply zinc coating by [hot-dip process according to ASTM A 123/A 123M or <br />ASTM A 153/ A 153M] [electrodeposition according to ASTM B 633, SC 3, Types I and 2]. <br /> <br />1. Galvanizing Repair Paint: High-zinc-dust-content paint with dry film containing not less <br />than 94 percent zinc dust by weight, and complying with DOD-P-21035B or SSPC- <br />Paint 20. <br /> <br />M. Shop-Primed Finish: Prepare surfaces of nongalvanized-steel items, except those surfaces to be <br />embedded in concrete, according to requirements in SSPC-SP 3, and shop apply [lead- and <br />chromate-free, rust-inhihitive primer, complying with performance requirements in <br />MPI 79] [SSPC-Paint 25] according to SSPC-P A 1. <br /> <br />2.5 BEARING PADS <br /> <br />A. Provide bearing pads for precast structural concrete units as recommended by precast fabricator <br />for application. <br /> <br />2.6 GROUT MATERIALS <br /> <br />A. Sand-Cement Grout: Portland cement, ASTM C 150, Type I, and clean, natural sand, <br />ASTM C 144 or ASTM C 404. Mix at ratio of 1 part cement to 2-1/2 parts sand, by volume, <br />with minimum water required for placement and hydration. <br /> <br />B. Nonmetallic, Nonshrink Grout: Premixed, nonmetallic, noncorrosive, nonstaining grout <br />containing selected silica sands, portland cement, shrinkage-compensating agents, plasticizing <br />and water-reducing agents, complying with ASTM C 1107, Grade A for drypack and Grades B <br />and C for flowable grout and of consistency suitable for application within a 30-minute working <br />time. <br /> <br />C. Epoxy-Resin Grout: Two-component, mineral-filled epoxy resin; ASTM C 881/C 881M, of <br />type, grade, and class to suit requirements. <br /> <br />2.7 INSULATED FLAT WALL PANEL ACCESSORIES <br /> <br />A. Molded-Polystyrene Board Insulation: ASTM C 578, [Type I, 0.90 lh/cu. ft. (IS kg/cu. m)] <br />[Type VIII, 1.15 lb/cu. ft. (IS kg/cu. m)] [Type IT, 1.35 lb/cu. ft. (22 kg/cu. m)]; [square] <br />[ship-lap] edges; with R-value of <Insert value> and thickness of <Insert dimension>. <br /> <br />B. Extruded-Polystyrene Board Insulation: ASTM C 578, [Type IV, 1.60Ih/cu. ft. (26 kg/cu. m)] <br />[Type X, 1.30 lh/cu. ft. (21 kg/cu. m)] [Type VI, 1.80 lb/cu. ft. (29 kg/cu. m)]; [square] <br />[ship-lap] edges; with R-value of <Insert value> and thickness of <Insert dimension>. <br /> <br />PLANT -PRECAST STRUCTURAL CONCRETE <br /> <br />03410-5 <br />