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504.11 Material Identification and Control Mark steel plates a nd shapes as specified in
AASHTO M 160 (ASTM A 6). Only use material from stock if it ca n be positively identified, properly documented and the direction of rolling ca n be determined. Store material and fabricated items off the ground. Protect th e material and fabricated items from dirt, grease, other foreign materials and significan t corrosion. Store fasteners in a protected e nvironment. Provide four faste ner assemblies for each lot, length and combination to the Fabrication Engineer for tes ting. A fastener assembly consists of a bolt, washer, nut and direct tension indicator (w hen required). Provide the fastener samples to the Fabrication Engineer immediately upon d elivery to the fabrication shop or job site. Provide Certificates of Conformance for welding consumables tha t are not on the Department’s pre-approved electrode list.
504.12 Protective Coatings If paint is specified, apply the co ating in accordance with
Section 506 of the Standard Specifi cations or Special Provision 506 as applicable. When galvanizing is specified, clean the steel in accordance wi th SSPC-SP 6 prior to galvanizing. Galvanize in accordance with AASHTO M 111 (ASTM A 123). Galvanize fasteners in accordance with ASTM F 2329-05 or AASHTO M 198 Cla ss 50 (ASTM B 695 Class 50). Galvanized nuts shall be lubricated with a water-so luble lubricant containing a dye that contrasts with the color of the galvanizing.
504.13 Unpainted Steel Clean all surfaces to a minimum SSPC-SP 6, Commercial Blast
Cleaning. Steel may be abrasive-blast cleaned prior to fabrica tion. Clean steel that is abrasive cleaned prior to fabrication in accordance with SSPC-S P 6 shall be cleaned in accordance with SSPC-SP 1 Solvent Cleaning after fabrication is complete. Disassemble bolted field splices and solvent clean all faying surfaces in a ccordance with SSPC-SP 1 Solvent Cleaning after drilling or reaming is complete. Inspec t the splices prior to re- assembly. HIGHWAY BRIDGE FABRICATION
504.14 Materials for Bridges The grade of steel is designated on the Plans. Do not
substitute material without the approval of the Fabrication Eng ineer.
504.15 Handling Material Handle material in a manner that prev ents nicks, gouges or
other damage from chains, wire ropes or other handling devices during all phases of fabrication.
504.16 Plates for Fabricated Members Cut plates subject to cal culated stress, including
splice plates, so that the direction of rolling is parallel to the primary stresses. The direction of primary stresses for web and field splice material is parall el to the flanges unless