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Opening of Bids - 2022 Street and Sewer Material Bid Proj No. 122-028 - K-Tech Specialty Coatings
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Opening of Bids - 2022 Street and Sewer Material Bid Proj No. 122-028 - K-Tech Specialty Coatings
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3/22/2022 4:04:42 PM
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Board of Public Works
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Projects
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3/22/2022
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e. The paint shall dry to a no tracking condition in no more than 6 minutes. The no <br />tracking condition shall be determined by actual application on the pavement at a <br />wet film thickness of 30 mils (750 pm) or greater with white or yellow paint covered <br />with glass beads at a rate of 7 Ib/gal. (0.7 kg/L). <br />2. Standard Pavement Marking Beads shall be in accordance with INDOT Specification <br />Section 921. <br />3. Material must be provided in 55 -gallon drums. <br />4. Paint shall be Ennis -Flint High Build Fast Dry Waterborne Traffic Paint or an approved <br />equal. Specifications shall be submitted to both the Engineer and Manager of Traffic <br />and Lighting for approval. <br />XX. DIVISION F: SNOW REMOVAL MATERIALS <br />B. Prevailing specification s/INDOT Standard Specification Section: None <br />C. Additions: <br />1. This specification covers requirements for replaceable cutting-edge blades for motor <br />graders and underbody truck scrapers. <br />2. Material: <br />a. The cutting edges shall be formed from high carbon steel made by the open hearth, <br />basic oxygen, or electric furnace process and shall have the following composition. <br />b. The composition of steel shall be as follows: <br />High Carbon <br />Heat Treated <br />Composition_ <br />Min (%) <br />Max % <br />Composition <br />Min % <br />Max <br />Carbon <br />0.80 <br />1.00 <br />Carbon <br />0.25 <br />0.35 <br />Manganese <br />0.50 <br />0.90 <br />Manganese <br />0.75 <br />1.20 <br />Phosphorous <br />--- <br />0.05 <br />Phosphorous <br />--- <br />0.05 <br />Sulfur <br />--- <br />0.05 <br />Sulfur <br />--- <br />0.05 <br />Silicon <br />--- <br />0.35 <br />Silicon <br />0.10 <br />0.40 <br />Boron <br />0.0005 <br />0.0085 <br />c. The finished cutting edge shall have a Brinell hardness number, under a 3000 <br />kilogram load, of not less than 250 nor more than 350 for high carbon blades, and <br />not less than 400 nor more than 520 for heat treated blades. The Brinell hardness <br />number will be determined by the current Method Test for Brinell Hardness of <br />Metallic Materials, ASTM Designation E10. <br />d. A chemical analysis of each melt of steel shall be made available by the <br />manufacturer to determine the percentages of the elements specified. <br />3. The cutting edges shall be of the length specified on the request for quotation form and <br />shall be double bevel, curved, 5/8 inch or 3/4 -inch -thick, and 6 inch or 8 inch wide after <br />forming. The bevel shall be 1 inch in length and the cutting edge shall have a radius <br />curvature of 7 1/2 inch to 10 inch. The finished blade section will be given a coat of rust <br />resistant paint and shall be free of warpage and longitudinal deviation. The cutting <br />edges for 5/8 -inch blades and 3/4 -inch blades shall be punched with 11/16 -inch square <br />holes with countersink to receive 5/8 -inch diameter #3 plow bolt. Hole punching to be <br />Version 09/29/2021 Special Provisions - 10 <br />
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