1089. 3(a) 1089. 4 erection . Use caulking compound to seal openings between metal surfaces and concrete after erection and alignment . Remove blemishes and scratches from exposed surfaces. For areas that have been damaged, exposing base metal, repair galvanizing according to ASTM A780 . Place joints, as indicated. At bend area, do not vary the diameter of rail tubes by more than 5% of the outside dimension when rail tubes are bent to the radii indicated. Do not open bridge to traffic until bridge railing is placed .
1089.4MEASUREMENT AND PAYMENT —Linear Foot , measured from end to end of barrier .
Caulking compound as specified in Section 705.7 is incidental. 1090. 1 1090. 2(d)
1090.1DESCRIPTION —This work is bridge preservation and rehabilitation as follows:
seals for unarmored and armored joints.
expansion dams for bridge joints of the indicated movement classification, including the necessary fabricated structural steel. This work also includes the removal of existing expansion dams, cover plates, railing, barrier , sidewalk, and portions of bridge deck for the installation of new neoprene strip seal expansion dams.
and replacement with a new neoprene strip seal gland of the indicated movement.
prestressed concrete beams.
approach slab cracks with High Molecular Weight Methacrylate (HMWM) sealer.
1090.2MATERIAL —
• Class AAA P Cement Concrete. Section 704 , except use No. 8 coarse aggregate.
• Class AA Cement Concrete . Section 704, except use No. 8 coarse aggregate.
• Accelerated Structural Concrete (ASC) . Section 704, except use No. 8 coarse aggregate.
• Reinforcement Bars . Section 709.1
• Epoxy Bonding Compound . Type II, Grade 2, ASTM C881 epoxy as specified in Section 706
• Forms . Section 1001.2(h)
• Mechanical Splice System. Section 1002.2(c)
• Galvanized Spray . AS