1076GALVANIZING

1074 -10 PINS Supply pins for bearing assemblies meeting either ASTM A36 or ASTM A108 for Grades 1016 through 1030, unless otherwise required by the plans or specifications. 1074 -11 WASHERS Provide washers for use with fasteners meeting ASTM F 436. Provide washers for high strength bolts meeting Article 1072 -5. Ensure that the size and finish (plain, weathering or galvanized) of wa shers is compatible with the fastener. 1074 -12 METAL STAY -IN-PLACE FORMS Provide metal stay -in-place forms for concrete floor slabs of zinc -coated (galvanized) steel sheet conf orming to ASTM A653, Structural Steel (SS) Grades 33 through 80 and Coating Class G165 meeting all requirements relevant to steel stay -in-place forms as noted on the contract plans. Do not use material thinner than 20 gauge. 1074 -13 STEEL GRID FLOORING Steel grid flooring shall conform to the requirements of AASHTO LRFD Bridge Construction Specifications , Section 12 and these Standard Specifications . GALVANIZING -1 GALVANIZING Wherever galvanizing is required, perform the galvanizing in accordance with this section except where other requirements for galvanizing are included in other sections of the se Standard Specifications . Allow the Engineer to obtain samples of molten zinc directly from the galvanizing vat upon request. -2 INSPECTION NOTIFICATION Coordinate galvanizing inspection with the Materials and Tests Unit in accordance with Subarticle 1072- 7(A). Before inspection, the galvanizer/supplier shall provide the Department’s inspector with NCDOT approved drawing/purchase order, stating contract number, location of project, quantity/type of material being galvanized and Mill Test Report (s) for respective material. -3 FABRICATED PRODUCTS Galvanize products fabricated from rolled, pressed and forged steel shapes, plates, bars and strips 1/8 inch thick and heavier in accordance with AASHTO M 111. Fabricate products into the largest unit that is practicable to galvanize before the galvanizing is done. Fabrication includes all operations necessary to complete the unit such as shearing, cutting, punching, forming, drilling, milling, bending, welding and riveting. Galvanize components of bolted or riveted assemblies separately before assembly. When it is necessary to straighten any sections after galvanizing, perform such work without damage to the zinc coating. Completely seal all edges of tightly contacting surfaces by welding and commercial blast clean to SSPC -SP 6 before galvanizing. Commercial blast clean components w ith partial surface finishes in accordance with Subarticle 442-7(A) before pickling. -4 HARDWARE Galvanize iron and steel hardware in accordance with AASHTO M 232.