PAINT FOR STRUCTURAL STEEL 730.01 741 Use galvanized bolts for end section assembly if skirts are made of more than one piece, and sections are not riveted together. The Res ident Engineer will reject materials for the following reasons: Non -conformance to the shapes or dimensions shown on the Plans, Uneven laps, Ragged sheared edges, Loose, unevenly lined, or spaced rivets, Poorly formed rivet heads, Illegible brands, Lack of rigidity, or Dents or bends in the metal.
730.01 General Requirements
A.General Provide a paint system from the Department's Materials Division approved products l ist (APL).
B.Paint System Acceptance Paint manufacturer must submit a Type A certification in accordance with Subsection 106.04, “Materials Certification ,” for each paint system, showing test results from an approved t esting laboratory. Ensure the certification includes the following: The manufacturer’s name, System performance test results, Dates, Paint test results and dates, Paint brand name, Lot number, and Manufacture date. The Materials Engineer will require a ne w certification if the following conditions occur: The manufacturing process or paint formulation changes, Testing indicates nonconformance to the specifications, or The certification is older than 5 years.
C.General System Performance Requirements Provide a copy of AASHTO NTPEP test results for all paint systems showing evaluation in accordance with AASHTO R 31. Provide paint in strong, tightly sealed containers. Label containers with the following:
730.02 Paint for Structural Steel
742 Manufacturer’s name, Paint type, Volatile Organic Compounds (VOC) content, Manufacture date, Lot number, Mixing instructions, and Equipment cleanup instructions. Provide copies of the Safety Data Sheets (SDS) and Product Data Sheets (PDS) for all components of each paint system to the Engineer and post o n the project site before painting. Do not use paint, coatings, and compounds with more than 0.19 percent lead by weight [mass] of the total nonvolatile paint content. The Department will not allow the use of paints containing leachable hazardous elements exceeding the limits specified in Table 730:1, "Leachable Hazardous Material Limits," when tested in accordance with the Toxicity Characteristic Leaching Procedure (TCLP), 40 CFR 261, “Identification and Listing of Hazardous Waste.” Include the TCLP test with the Type A certification. Table 730:1 Leachable Hazardous Material Limits Hazardous Material Limit, ppm Arsenic 5 Barium 100 Cadmium 1 Chromium 5 Lead 5 Mercury 0.2 Selenium 1 Silver 5 Ensure the maximum VOC content of paint, thinned for application, is 2.9 lb/gal [350 g/L] when tested in accordance with ASTM D3960. VOC regulations of the EPA or ODEQ may be stricter than Department regulations. Comply with the most restrictive VOC regulations.
730.02 Requirements for Pai Nt Systems
A.Inorganic Zinc/Epoxy/Urethane System Provide an inorganic Zinc/Epoxy/Urethane (IZ -E-U) system that meets the requirements of Table 730:2. PAINT FOR STRUCTURAL STEEL 730.02 743 Table 730:2 Inorganic Zinc/Epoxy/Urethane Coating Properties Property Test Value Test Method Slip Coefficient Class B (not less than 0.5) Salt Fog Resistance: Delamination None Rust Criteria @ 5,000 hours 4 mm Max. Creep and 2 mm Average Creep Blister Criteria @ 4,000 hours Blister Conversion Value of 8 Cyclic Weathering Resistance: Delamination None Rust Criteria @ 5,000 hours 4 mm Maximum Creep and 2 mm Average Creep Blister Criteria @4,000 hours Blister Conversion Value of 9 Gloss Value Report Value Only % Gloss Retention Report Value Only Color Change, Δe Report Value Only Abrasion Resistance Weight Loss and Wear Index – Report Only Adhesion 350 psi [2.4 MPa] Freeze Thaw Stability 210 psi [1.4 MPa]
730.02 Paint for Structural Steel
744 B. Organic Zinc/Epoxy/Urethane System Provide an organic Zinc/Epoxy/Urethane (OZ -E-U) system that meets the requirements of Table 730:3. Table 730:3 Organic Zinc/Epoxy/Urethane Coating Properties Property Test Value Slip Coefficient Class B (not less than 0.5) Salt Fog Resistance: Delamination None Rust Criteria @ 5,000 hours 4 mm Maximum Creep and 2 mm Average Creep Blister Criteria @4,000 hours Blister Conversion Value of 7 Cyclic Weathering Resistance: Delamination None Rust Criteria @ 5,000 hours 8 mm Maximum Creep and 4 mm Average Creep Blister Criteria @4,000 hours Blister Conversion Value of 8 Gloss Value Report Value Only % Gloss Retention Report Value Only Color Change, Δe Report Value Only Abrasion Resistance Weight Loss and Wear Index – Report Only Adhesion 600 psi [4.1 MPa] Freeze Thaw Stability 360 psi [2.4 MPa]
C.Single -Component Moisture -Cured Urethane System Provide a Single -Component Moisture -Cured Urethane (SC -MC-U) system that meets the requirements of Table 730:4 . Use a zinc -rich or zinc and mica ceous iron oxide (MIO) primer for the first coat. Formulate the primer with either synthetic or natural MIO. Provide a single -component or two-component primer. Formulate the intermediate coat and topcoat with natural MIO. Provide an MIO intermediate c oat that is a Single -Component Moisture -Cured Urethane paint. Provide a top coat that is an MIO -based Single -Component Moisture -Cured -Aliphatic Urethane paint. Table 730:4 Single -Component/Moisture -Cured/Urethane Coating Properties Property Test Value Slip Coefficient Class B (not less than 0.5) PAINT FOR S TRUCTURAL STEEL 730.02 745 Table 730:4 Single -Component/Moisture -Cured/Urethane Coating Properties Property Test Value Salt Fog Resistance: Delamination None Rust Criteria @ 5,000 hours 4 mm Maximum Creep and 2 mm Average Creep Blister Criteria @4,000 hours Blister Conversion Value of 8 Cyclic Weathering Resistance: Delamination None Rust Criteria @ 5,000 hours 4 mm Maximum Creep and 2 mm Average Creep Blister Criteria @4,000 hours Blister Conversion Value of 9 Gloss Value Report Value Only % Gloss Retention Report Value Only Color Change, Δe Report Value Only Abrasion Resistance Weight Loss and Wear Index – Report Only Adhesion 350 psi [2.4 MPa] Freeze Thaw Stability 210 psi [1.4 MPa]
D.Repair Paint Systems Provide coating systems for Category R and Category O applications, defined in subsection 730.02.A, B, or C, “REQUIREMENTS FOR PAINT SYSTEM” in accordance with Table 730:5 . A repair system may be applied with either two or three coats.
731.02 Timber Preservatives and Treatment
Table 730:5 Repair Coating Properties Property Test Value Slip Coefficient Report Value Only Salt Fog Resistance: Delamination None Rust Criteria @ 5,000 hours 8 mm Maximum Creep and 4 mm Average Creep Blister Criteria @ 4,000 hours Blister Conversion Value of 6 Cyclic Weathering Resistance: Delamination None Rust Criteria @ 5,000 hours 10 mm Maximum Creep and 5 mm Average Creep Blister Criteria @ 4,000 hours Blister Conversion Value of 7 Gloss Value Report Value Only % Gloss Retention Report Value Only Color Change, Δe Report Value Only Abrasion Resistance Weight Loss and Wear Index – Report Only Adhesion 350 psi [2.4 MPa] Freeze Thaw Stability 210 psi [1.4 MPa] SECTION 731 TIMBER PRESERVATIVES AND TREATMENT
731.01 Materials
Provide timber preservative in accordance with AASHTO M 133.
731.02 Preparation for Trea Tment
A.General Requirements The Department’s “Shop Inspection” Testing Laboratory will inspect all lumber and timber products at the treatment facility. Ensure the treatment facility is equipped with the necessary gauges, appliances, and facilities, and make available to the Department 's representative.
Source: Oklahoma Standard Specifications for Highway Construction, 2019 Edition. Pages 755–759 of 935.