181-26 Exhibit A- Final Specifications_compressed.pdf

is aligned, spaced, and sized according to 2004 Edition of Standard Highway Signs and Markings Book, its 2012 Supplement, and the working drawings. Apply the legend and borders using the following methods: 911.01.04 Acceptance Inspection THE FIRST PARAGRAPH IS CHANGED TO: Notify the ME at least 3 days before shipping to the Project so that arrangements for inspection can be made. The ME will reject signs not fabricated according to the 2004 Edition of Standard Highway Signs and Markings Book, its 2012 Supplement, and the Plans. The ME will ensure that finished signs are clear and legible without smudging, blisters, delamination, loose edges, or other blemishes. The ME will also ensure that the colors have a consistent chromaticity across all signs of the same color. 911.02 SIGN SUPPORTS 911.02.01 Steel “U” Post Sign Supports THE SUBPART IS RENAMED TO: 911.02.01 Steel “U”and Square Tube Post Sign Supports THE FOLLOWING IS ADDED AT THE END: Use steel “U” post sign supports conforming to ASTM A 499, Grade 50 or 60, with the length of post and minimum pounds per foot as shown on the Plans. Provide 18-8 stainless steel 5/16 × 18 UNC hexagonal headed bolts and nuts conforming to ASTM A 320, Grade B8, Class 1, for securing the signs to the steel “U” post. Provide sign mounting bolts that are sized to extend beyond the end of each nut by no more than 3/4 inches when fully tightened. Submit a certification of compliance, as specified in 106.07, for “U” posts. Use square steel tube post sign supports conforming to ASTM A 1011, Grade 50, with the length of post and minimum pounds per foot as shown on the Plans. Provide 18-8 stainless steel 5/16 × 18 UNC hexagonal headed bolts and nuts conforming to ASTM A 320, Grade B8, Class 1, for securing the signs to the square steel tube post. Provide sign mounting bolts that are sized to extend beyond the end of each nut by no more than 3/4 inches when fully tightened. Submit a certification of compliance, as specified in 106.07, for square steel tube posts. SECTION 912 – PAINTS, COATINGS, TRAFFIC STRIPES, AND TRAFFIC MARKINGS 912.01.04 Concrete Stain THE SUBSECTION IS CHANGED TO: Provide a penetrating stain that is a single component, water-based acrylic coating, alkali resistant, and water repellant. Primer is required for application on smooth concrete. Provide a primer that is a penetrating, water based, water

single component, water-based acrylic coating, alkali resistant, and water repellant. Primer is required for application on smooth concrete. Provide a primer that is a penetrating, water based, water repellent concrete sealer. Ensure that the stain conforms to the requirements in Table 912.01.04-1. Table 912.01.04-1 Requirements for Concrete Stain Property Value ASTM Test Method Dry – to – Touch Time Max. 1 hour D 1640 Dry – to – Recoat Time Max. 4 hour D 1640 Weight per Gallon 11.0 + 0.5 lbs. D 1475 Weight Solids 52 + 2% D 2369 Adhesion, Tape Test Min. 4A D 3359 Gloss Flat D 523 Weathering <3.0 dE @ 3,000 hrs. G 154 / D 4587 VOC <100 g/L D 2369 HELEN AVE., LAWRENCE AVE., FLORENCE PL., AND LOWELL AVE., IMPROVEMENTS PROJECT Page 72 of 76