5-100
507.06 Steel Pipe Hand Railing Steel pipe hand railings shall be fabricated in
accordance with the requirements of Section 504, Structural Ste el. When called for on the Plans, railings shall be galvanized and/or coated in accordance with Section 506, Shop Applied Protective Coating- Steel.
507.07 Aluminum Bridge Railing Aluminum sections may be sheare d, sawed, or milled.
Cut edges shall be smooth and free of burrs. Holes for rivets shall be drilled full size from the solid or s ub punched and reamed. Rivets shall be cold-driven in the "as-received" condition and the driven head shall be of the cone-point type. Welding shall be done in conformance with the latest edition of AWS Structural Welding Code-Aluminum D1.2 (AWS D1.2). No welding shall be perf ormed before the approval of the appropriate wel d procedures. No field welding is permitted. All welds shall be inspected and conform with AWS D1.2, Clause 5, Inspection. 100% of welds shall be visually examined (VT). In addition to V T, 10% of all partial joint penetration (PJP) and fillet welds shall be dye penetrant teste d (PT); locations to be PT examined will be designated by the QAI. 25% of complete joint p enetration (CJP) welds shall be either, ultrasonic tested (UT) or PT based on the thin ner material in the welded joint; joints with thinner material thicknesses less than 0.25 inch shall be PT examined and joints with thinner material thickness equal or greater than 0. 25 inch shall be UT examined. Locations to be UT examined will be designated by the QAI. Exte nt of testing shall conform with AWS D1.2, Clause 5. To facilitate bending, aluminum extrusions of Alloy 6061-T6 or 6351-T5 may be heated to a maximum temperature of 400 degrees Fahrenheit for a period of not more than thirty minutes. Threaded fasteners shall conform to the requirements of ANSI St andard B 1.1, Class 2A for external and Class 2B for internal threads.
507.08 Method of Measurement Railing will be measured as one l ump sum unit,
fabricated, delivered, erected, and accepted.
507.09 Basis of Payment Railing will be paid for at the contra ct lump sum price,
complete in place. Payment for galvanizing and/or protective c oating, when required, shall be included in the lump sum price. Payment will be made under: P a y I t e m P a y U n i t 507.0811 Steel Bridge Railing, 2 Bar L u m p S u m 507.0821 Steel Bridge Railing, 3 Bar L u m p S u m 5-101 507.0831 Steel Bridge Railing, 4 Bar L u m p S u m 507.0841 Steel Pipe Hand Railing L u m p S u m 507.0846 Barrier Mounted Steel Bridge Rail: 1 Bar Lump Sum 507.0848 Barrier Mounted Steel Bridge Rail: 2 Bar Lump Sum 507.0951 Aluminum Bridge Railing, Pedestrians L u m p S u m 507.0961 Aluminum Bridge Railing, Pedestrian, with Pales Lump Sum SECTION 508 -WATERPROOFING MEMBRANE
508.01 Description This work shall consist of furnishing and a pplying an approved
waterproofing membrane to concrete deck surfaces, or other conc rete surfaces, with a barrier type membrane in accordance with this specification, other appl icable Contract documents and the manufacturer’s published recommendations, complete, in place and accepted. Waterproofing membrane shall be either peel and stick sheet wat erproofing membrane (sheet membrane) or torch or spray applied high performance wat erproofing membrane (high performance membrane).
508.02 Materials Sheet membrane and high performance membrane shall include all
materials, as recommended by the manufacturer, to produce a wat erproof barrier on the specified concrete surface. In addition to the membrane, these materials may include primer, hot-applied rubberized asphalt sealer, mastic, flashing , aggregate scatter and tack coat. The list of acceptable sheet membrane products is includ ed on the Department’s Qualified Products List (QPL), of Waterproofing Membranes: Stan dard Systems. The list of acceptable high performance membrane products is included on th e Department’s QPL of Waterproofing Membranes: High-Performance (Spray Applied) or High Performance- (Torch Applied).
508.04 Construction- General The Contractor shall store and in stall the membrane and
all associated components in accordance with the manufacturer’s published recommendations. Existing membrane waterproofing remaining on structures to be r ehabilitated shall be completely removed to the primed surfaces. At the discretion o f the Resident, tightly adhered membrane residue that cannot reasonably be removed by s craping using industry standard practices, may be left in place. Prior to application of primer or installation of membrane: Co ncrete shall be cured in accordance with applicable Contract requirements; areas where r apid setting patching materials have been placed shall be cured for a minimum of 72 h ours, or as recommended by the product manufacturer. The entire surface of concrete structures specified to receive waterproofing membrane shall be shot blasted to achieve a surface which is clean and f ree of laitance, oil, grease and any foreign materials, as well as any sharp protrusions or shar p indentations. For superstructure decks, including, but not limited to, precast bo x beams, voided slabs, and