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DMSION 03 Section 3450 - Atrhitectural Frecast Concrete-Plant Cast <br /> 2.03 REINFORCING MAT'�RIALS <br /> A. Reinforcin.g�ars:ASTM A 615,Grade 60(AST'M A 615M, Grade 400},de�ormed. <br /> }3. Galvanized Reinforcing Bars: ASTM�A 7b7(ASTM A 767M},Class II,Z oz./sq. ft. (610 <br /> g/sq.m)zinc,hot-dip gaivanized. <br /> C. In lzeu of the ab4ve,epoxy-coated bars may be used,at Confractors option. <br /> D. Steel-Welded Wire Fabric: ASTM A 185,piain,cold drawn. <br /> 2.04 PRESTRESSING T'F.NDONS (MaYtufaciurers option) <br /> A. Prestressing Strand:ASTM A 416,Grade 250 or 270,uncoated,7-wire,low-relaxati.on strarid. <br /> 2.05 CONCRETE MATERIALS <br /> A. Portland Cement: ASTM C].�,Type 1 or Type III. <br /> 1. Use only one brand, type,and color of cement from the same rnill throughout Project. <br /> 2. Standard gray portland cement may be used for back-up concrete. <br /> B. Narmal-Wei�ht Aggr.egates:ASTM C 33,with coarse aggregates rneeting Class 5S and <br /> MNL-117 requirements. <br /> ].. Face-Mix Caarse Aggregates:Selected,hard,and durable;free of material that reacts <br /> ��ith cement or causes staining. <br /> a.Gradation: Uni£ormly graded. <br /> 2. Face-Mix Fine Aggregates:Selected,natural or manufactured sancE of the same maEerial <br /> as coarse ag,gregate,unless otherwise acceptable to Architect. <br /> C. Coloring Agent:ASTM C 979,synthetic mineral oxide pigments or colored water-reducing <br /> admixtures,calor stable,nonfading,resistant to lime and other alkaii.. <br /> D. VVater Potable;free from deleterious material that may affect coior stability,setting, or <br /> strength of concrete. <br /> E. Air-Entraining Admixture:ASTM C 260,certified l�y manufacturer to be compatible,with <br /> other required adinixtures. <br /> F. Water-Reducing Admixture: AS'T1V1 C 494,Type A. <br /> 2.06 CONNECTION MEITBRIALS <br /> A. Steel Shapes and Plates:l�Sl'M A 36(ASTM A 36M}. <br /> B. Carboi�-Steel Bolts and Studs:ASTM A 307,Grade A(ASTM F 568, Property Qass 4.6); <br /> carbon-steel, hex-head bolts and stztds;carbon--steel nuts;and flat, uathardened steel <br /> washers. <br /> o3aso- a <br /> HENN�PIIY C�UNTY Qr000 Salt Storaee <br /> Ms�rch 22,2002 Project No.: 0031569 Contract No.:p75 I R2 <br />