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I <br />40-27 BUILDING PRECAST CONCRETE <br />BRPH ARCHITECTS -ENGINEERS, INC. <br />5. High -Range, Water -Reducing Admixture: ASTM C 494/C 494M, Type F. <br />6. High -Range, Water -Reducing and Retarding Admixture: ASTM C 494/C 494M, <br />Type G. <br />7. Plasticizing and Retarding Admixture: ASTM C 1017/C 1017 M. <br />2.3 STEEL CONNECTION MATERIALS <br />A. Carbon -Steel Shapes and Plates: ASTM A 36/A 36M. <br />B. Carbon -Steel -Headed Studs: ASTM A 108, AISI 1018 through AISI 1020, cold <br />finished, AWS D1.1/D1.1M, Type A or B, with arc shields and with minimum <br />mechanical properties of PCI MNL 117, Table 3.2.3. <br />C. Carbon -Steel Plate: ASTM A 283/A 283M. <br />D. Carbon -Steel Castings: ASTM A 27/A 27M, Grade 60-30. <br />E. High -Strength, Low -Alloy Structural Steel: ASTM A 572/A 572M. <br />F. Carbon -Steel Bolts and Studs: ASTM A 307, Grade A; carbon -steel, hex -head bolts <br />and studs; carbon -steel nuts, ASTM A 563; and flat, unhardened steel washers, <br />ASTM F 844. <br />G. Shop -Primed Finish: Prepare surfaces of steel items, except those surfaces to be <br />embedded in concrete, according to requirements in SSPC-SP 3 and shop -apply lead - <br />and chromate -free, rust -inhibitive primer, complying with performance requirements in <br />MPI 79 according to SSPC-PA 1. <br />H. Welding Electrodes: Comply with AWS standards. <br />2.4 BEARING PADS <br />' A. Provide the following bearing pads for precast concrete units: <br />1. High -Density Plastic: Multimonomer, nonleaching, plastic strip. <br />2.5 ACCESSORIES CC SSORIES <br />A. Precast Accessories: Provide clips, hangers, plastic or steel shims, and other <br />accessories required to install precast concrete units. <br />2.6 GROUT MATERIALS <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 <br />volume, with minimum water required for placement and hydration. <br />' C06922.001.00 03 45 00 - 5 <br />05-22-14 <br />