in the specified position by use of plastic or wire bar supports, supplementary tie-down bars, side -form spacers, or other approved devices. Such devices shall be placed at intervals to maintain the WWR cover as shown on the approved working drawings. Platforms for the support of workers and equipment during concrete placement shall be supported directly by the forms and shall not alter the positioning of the WWR. 737.08 Repair of Coated WWR All damaged, cut, or otherwise compromised areas of the coating shall be 90 repaired. (a) Epoxy-Coated In addition to the requirements of ASTM A884, all visible damage, including but not limited to scratches, nicks and cracks to the epoxy coating caused during shipment, storage, or placement shall be repaired on the project site with approved patching material. Ends of WWR that have been sheared, sawed, or cut by other means shall be coated with approved patching material . Areas on the WWR sheets and tie-down bars damaged due to welding shall be repaired with approved patching material. Patching of damaged areas shall be performed in accordance with the patching material 100 manufacturer’s recommendations. If the damaged surface area exceeds 10% of the total WWR sheet surface area, the sheet shall be removed and replaced with an acceptable sheet. All patching material shall be fully cured prior to placing concrete. Patching material shall be compatible with the epoxy coating, deemed inert in concrete, and deemed suitable for repairs in the field. Patching material shall be identified on the container as satisfying ASTM A775, Annex A2, or a Type C certification in accordance with 916 shall be provided for the pa tching materials, certifying that the material satisfies or exceeds the requirements of Annex A2.
All visible damage, including but not limited to scratches, nicks and cracks to the galvanized coating caused during shipment, storage, or placement shall be repaired on the project site in accordance with ASTM A1060. Ends of WWR that have been sheared, sawed, or cut by other means sh all be coated. Areas on the WWR sheets and tie-down bars damaged due to welding shall be repaired and recoated. Field coating of damaged areas shall be performed in accordance with the coating manufacturer’s recommendations. Galvanized coating shall be in accordance with ASTM A1060. It shall be applied to achieve a dry film equal to or exceeding that designated in ASTM A1060. All 120 touchup coating material shall be fully cured prior to placing concrete. 737.09 Final Inspection After being placed, WWR shall be subjec t to approval by the Engineer before beginning concrete placement. Concrete placed prior to approval of the WWR will be subject to rejection and removal. 737.09 866 737.10 Method of Measurement This work will not be measured for payment. 130
737.11Basis of Payment
The accepted quantity for payment will be the quantity for reinforcing bars or epoxy-coated reinforcing bars shown on the plans. This work will be paid for as reinforcing bars or epoxy-coated reinforcing bars in accordance with 703.08, regardless of whether the WWR design results in a reinforcement weight that is different from that shown on the plans. If galvanized WWR is supplied, it will be paid for as epoxy-coated reinforcing bars. 140 The cost of tie wires, chair and bar supports, metal clips, spacers, or other mechanical means used for fastening or holding WWR in place, and laps shall be included in the cost of WWR. The cost of epoxy-coating materials or galvanizing materials and repair of damaged or removed coating materials on WWR and on tie wires, chair and bar supports, metal clips, spacers, or other mechan ical means used for fastening or holding WWR in place, and laps shall be included in the cost of WWR. If reinforcing bars or epoxy-coated reinforcing bars are not paid for separately, 150 but instead included in the cost of a pay item, and WWR is substituted for reinforcing bars or epoxy-coated reinforcing bars, the WWR will not be paid separately, but shall be included in the cost of the pay item. 737.10 867 DIVISION 800 – TRAFFIC CONTROL DEVICES AND LIGHTING