MASONRY BRICK 714.02 719 SECTION 714
714.01 Masonry Brick Made F Rom Clay Or Shale
Provide Grade MW or SW masonry brick made from clay or shale in accordance with ASTM C62, except, the requirements for “Maximum Water Absorption by Five -Hour Boiling” and “Maximum Saturation Coefficient” do not apply. Use Grade MM or Grade MS bricks for manhole brick, in accordance with AASHTO M 91.
714.02 Concrete Building Br Ick
Provide normal weight concrete building brick in accordance with ASTM C 55, except, the requirements for “Water Absorption,” “Moisture Content,” and “Linear Shrinkage” do not apply.
719.03 Signs
720 SECTION 719 SIGNS
719.01 Panels
A.Aluminum
1.Sheet Aluminum Provide sheet alum inum signs in accordance with ASTM B 209, alloy 6061 -T6 or alloy 5052 -H38 with mill finish. Use the dimensions, hole sizes, and hole locations shown on the Plans. Ensure panels are flat and straight within commercial tolerances. Treat sheet aluminum sig ns with a chromate type chemical conversion coating in accordance with ASTM B 449, Class II.
2.Extruded Aluminum Provide extruded aluminum panel signs in accordance with ASTM B 221, alloy 6063 -T6 with the dimensions, hole sizes, and hole locations shown on the Plans. Keep panels flat and straight within commercial tolerances. Ensure extruded aluminum is free of corrosion, white rust, and dirt. Provide aluminum edge strip in accordance with ASTM B 221, alloy 6063 -T6. Place aluminum sheet metal screws wi th slotted pan heads on centers no greater than 24 in [609.6 mm] to secure the edge strips to the sign panels. On signs less than 36 in [914.4 mm] wide, use at least three screws.
B.Sign Faces Make sign faces in accordance with the drawings in the latest revision of the MUTCD , and as shown on the Plans.
719.02 Support Arms and Fit Tings
A.Materials Use structural steel for sign supports of sheet signs in accordance with AASHTO M 270 (ASTM A709), Grade 36, or aluminum alloy in accordance with ASTM B 221, alloy 6063 -T6.
B.Fabrication Provide pre -fabricated sign supports, bracket arms, and fittings that are cut to the shapes and dimensions shown on the Plans before degreasing, etching, and applying reflective sheeting. Ensure parts are free of buckles, warp, dents, cockles, burrs, and defects.
719.03 Sheet and Extruded A Luminum Sign Fastene Rs
Use aluminum fasteners and collars sized as indicated on the plans for fastening sheet aluminum signs to si gn bracket arms.
Referenced in this section
Masonry Brick in other states
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Source: Oklahoma Standard Specifications for Highway Construction, 2019 Edition. Pages 733–733 of 935. View official source ↗