709.00 808 Prequalification. Before approval, submit copies of the manufacturer’s certified test data showing that the coating system complies with the performance requirements of this specification to the Laboratory Ensure that the certified test data also states the following physical properties for each coating: Density, pounds per gallon (g/mL); Solids, percent by weight; Solids, percent by volume; Viscosity; Drying time; and VOC content, pounds per gallon (g/mL). Use an independent testing laboratory, approved by the Laboratory, to develop the test data. Include with the test data the brand name of the paint, name of manufacturer, number of lots tested, and date of manufacture. Once t he Director approves the coating, the Department will not require further performance testing by the manufacturer unless the formulation or manufacturing process has been changed, in which case the Department will require new certified test results . Sampling. The Laboratory will establish acceptance variances. Furnish materials certified according to S 1084 and listed on the Department’s QPL . 709 REINFORCING STE EL
709.00 Epoxy Coated Reinforcing Steel. Provide epoxy coated reinforcing
steel according to ASTM A 775/A 775M, with the following modifications: 5.1 Ensure that steel reinforcing bars to be coated conform to 709.01, 709.03, or 709.05, and are free of oil, grease, or paint. 5.2 Ensure that th e coating material meets the requirements listed in Annex A1 and is a color that facilitates inspection of the installed bar. The color is subject to approval of the Director. 5.3 Sample required. 8.3.1 Evaluate the adhesion of the coating by bending pr oduction coated bars around a mandrel of specified size according to the bending tables in ASTM A 615 (ASTM A 615M) or ASTM A 996 (ASTM A 996M) as applicable. Perform the bend test for adhesion of the coating at a uniform rate, and ensure that it takes up to 90 seconds to complete. Place the two longitudinal deformations in a plane perpendicular to the mandrel radius, and ensure that the test specimens are at thermal equilibrium between 68 and 86 F (20 and 30 C). 12.1 Perform tests, inspection, and sam pling at a site specified by the Director. Sampling for testing requires three 30 -inch (1 m) samples for each bar size, for each coating lot, and for each heat of steel reinforcing bars. 14.1 Report of test results required. Where reinforcing bar cages for prestressed concrete beams are fabricated by tack welding, patch the areas damaged by the tack welding according to ASTM A 775, Section 11, permissible Amount of Damaged Coating and Repair of Damaged Coating. 709.01 809 709.01 Deformed and Plain Billet Steel Bar s for Concrete Reinforcement. Provide deformed and plain billet steel bars for concrete reinforcement according to ASTM A 615 (ASTM A 615M), with the following modification: 13.1 Where positive identification of a heat can be made, perform one tension test and one bend test from each bar designation number of each heat in the Lot. Where identification of the heat is not practical, perform one tension test and one bend test for each bar designation number in each lot of 10 tons (10 metric tons) or fractio n thereof. Furnish certified material according to Supplement 1068.
709.03 Rail Steel Deformed and Plain Bars for Concrete Reinforcement.
Provide rail steel deformed and plain bars for concrete reinforcement according to ASTM A 996/A 996M. Furnish certified material according to Supplement 1068.
709.05 Axle Steel Deformed and Plain Bars for Concrete Reinforcement.
Provide axle steel deformed and plain bars for concrete reinforcement according to ASTM A 996/A 996M. Furnish certified material accordi ng to Supplement 1068.
709.07 Electric - Resistance -Welded Carbon and Alloy Steel Mechanical
Tubing. Provide grade 60 carbon steel round tubing with a minimum 60 ksi (414 MPa) yield strength according to ASTM A 513/A 513M, with the following modifications: 14.1 Galvanize both the interior and exterior of the tubing with a minimum thickness of 0.30 oz/ft² (91.5 g/m2) zinc. If welded tubing is used, re -metallize the outside weld with zinc. Furnish certified material according to Supplement 1068.
709.08 Cold -Drawn Steel Wire for Concrete Reinforcement. Provide cold
drawn steel wire for concrete reinforcement according to ASTM A 82 or ASTM A 1064, with the following modification: 7.2 Completely cover galvanized wire with a coating of pure zinc of uniform thickness, so applied that it will adhere firmly to the surface of the wire. Ensure that the minimum weight of zinc coating is 0.8 ounces per square foot (244 g/m2) of surface as determined by ASTM A 90. Furnish certified material according to Supplement 106 8.
709.09 Fabricated Steel Bar or Rod Mats for Concrete Reinforcement.
Provide fabricated steel bar or rod mats for concrete reinforcement according to ASTM A 184/A 184M, with the following modifications: 4 Use deformed bars. 4.1 Provide longitudinal ba rs conforming to Grade 60 of 709.01, 709.03, or 709.05. 4.2 Provide longitudinal bars according to 709.01, Grade 60. Provide transverse bars according to 709.01. 709.10 810 Furnish certified material according to Supplement 1068.
709.10 Welded Steel Wire Fabric For Concrete Reinforcement. Provide
welded steel wire fabric for concrete reinforcement according to ASTM A 185 or ASTM A 1064. Furnish certified material according to Supplement 1068.
709.11 Deformed Steel Wire for Concrete Reinforcement. Provide
deformed steel wire for concrete reinforcement according to ASTM A 496 or ASTM A 1064. Furnish certified material according to Supplement 1068.
709.12 Welded Deformed Steel Wire Fabric for Concrete Reinforcement.
Provide welded deformed steel wire fabric for concrete reinforcement according to ASTM A 497 or ASTM A 1064. Furnish certified material according to Supplement 1068.
709.13 Coated Dowel Bars . Provide coated dowel bars according to AASHTO
M 254, with the following modifications: 4.1 The core material will consist of steel according to 709.01, 709.03, or 709.05. Coat all surfaces of dowel bars. Suitably re -coat ends of dowel bars that have been cut to length after coating or have not had the uncoated ends coated during manufacturing or fabrication. Prepare surface and patch uncoated bar ends with material equivalent to the original epoxy coating. If the Contractor elects to use basket supports for positioning of the above dowel bars as specified in 451.08.B or as shown on the plans, pro vide a fusion -bonded epoxy coated basket dowel bar assembly. Repair uncoated areas with surface preparation and patching material equivalent to the original epoxy coating. Suitably repair coating on the dowel bars or baskets damaged during installation. Do not expose coated dowels to weather or sunlight for a period exceeding 180 days. Furnish certified material according to Supplement 1068.
709.14 Epoxy -Coated Steel Wire and Welded Wire Fabric for
Reinforcement. Provide epoxy coated steel wire and welded wire fabric for reinforcement according to ASTM A 884, with the following modifications: 5.1 Ensure that plain or deformed steel wire or welded wire fabric to be coated conform to 709.08, 709.10, 709.11, or 709.12, and is free of oil, grease, or paint. 8.1 Ensure that the coating thickness conforms to Type A. Provide dry film thickness of 5 to 12 mils (0.13 to 0.31 mm). 8.4 Test coated steel wire or welded wire fabric at the manufacturer’s plant before shipment or at other sites as designated by the L aboratory. Furnish certified material according to Supplement 1068.