621.4 621.4(f)
621.4MEASUREMENT AND PAYMENT —
623.1 623.2(b)
623.1DESCRIPTION —This work is construction of cement concrete median barrier.
623.2MATERIAL —
• Class AA Cement Concrete . Section 704, except use Class AAA Cement Concrete for precast barrier
• Class AA Cement Concrete (Slip -Forming) . Section 501
• Premolded Expansion Joint Fille r. Section 705.1
• Reinforcement, Epoxy Coated or Galvanized . Section 709.1, 709.3, or 709.4
• Barrier Loops. ASTM A36, hot rolled round bar ; galvanize after bending as specified in Section 1105.02(s)
• Pins. ASTM A449, Type 1 , unthreaded rod (straight) - 1 inch diameter ; galvanized as specified in
• Washers. ASTM A572 , Grade 50 ; galvanized as specified in Section 1105.02(s) after washer is welded to pin .
• Curing and Protecting Covers . Sections 711.1 and 711.2(a)
• Joint Sealing Material (Longitudinal Joints) . Section 705.4(b) or (c)
• Joint Sealing Material ( Transverse Joints ). Section 705.4(b) or (c), between concrete median barrier sections with pin -and-loop connections
• Mortar . Section 1001.2(d)
• Coarse Aggregate , Type A, No. 8, No. 57, or No. 67 . Section 703.2
• Subbase Material . Section 350.2
• Precast Concrete Barrier . Section 714
• Structural Steel (Plates for Joints) . Section 1105 .02(a)2. Galvanized as specified in Section 1105.02(s)
• Penetrating Sealers for Reinforced Concrete Surfaces . Section 1019
• Intermediate Curing Compound . Section 711.2(c)
• Caulking Compound (Vertical Joints) . Section 705. 7(b)
• Superpave Asphalt Mixture Design, Asphalt Wearing Course or Asphalt Binder Course . Section 413.2
• Rapid Set Concrete Patching Material . Section 525.2(c)
• Geotextile, Class 4, Type A . Section 735 - Table A