- 917 - SECTION 1068 -- ELASTOMERIC BEARINGS AND LAMINATED BEARING PADS
1068.01 Description
1.Elastomeric bearings and laminated bearing pads shall conform to the requirements of the current AASHTO LRFD Bridge Design Specifications.
1068.02 Acceptance Requirements
1.AASHTO tests required for the elastomeric material and steel shall be performed in an approved laboratory at no cost to the Department.
2.Samples and certification shall be furnished in accordance with Department’s Materials Sampling Guide . - 918 - SECTION 1069 -- TEMPORARY PAVEMENT MARKING
1069.01 Description
1.This Specification covers te mporary pavement marking tape ASTM D 4592 (Type I and II), Raised Pavement Markers (RPM), overlay markers, and pavement marking paint.
1069.02 Material Characteristics
1.Temporary Pavement Marking Tape, Type I:
a.Temporary pavement marking tape, Type I, shall be made with a tape-like material manufactured from a thin sheet of malleable aluminum coated with a white or yellow binder. It shall be reflectorized with glass beads and backed with a pressure-sensitive adhesive.
b.The tape shall be 4 inches (100 mm) wide, and the reflectorizing glass beads shall have an index of refraction of not less than 1.90.
2.Temporary Pavement Marking Tape, Type II:
a.Temporary pavement marking tape, Type II, shall be a mixture of high quality polymeric materials and pigments with glass beads throughout the pigmented portion of the film and reflectorized with glass beads bonded to the top surface.
b.The film shall be precoated with a pressure-sensitive adhesive. Unless otherwise specified, the te mporary pavement marking shall be 4 inches (100 mm) wide and the reflec torizing glass beads shall have an index of refraction of not less than 1.90.
c.A nonmetallic medium sha ll be incorporated to facilitate removal either manually or with a recommended roll-up device. The tape shall be capable of being easily removed from asphalt and Portland cement concrete surfaces intact (or in larg e pieces), at temperatures above 41°F (5C).
d.Removal shall be accomplished without the use of heat, solvents, grinding, or sandblasting.
3.Raised Pavement Markers: a. Raised pavement markers shall consist of a plastic shell having a minimum width of 4 inches (100 mm) and maximum height of 0.79 inch (20 mm) with one or more prismatic reflecti ve faces with a minimum of 0.38 square inches (2.45 cm 2) of reflective surface for each direction required to reflect incident light.
b.The marker shall be fitted with pressure-sensitive adhesive for application to a primed surface.
4.Overlay markers: a. Overlay markers shall be made from impact-resistant polyurethane plastic.
b.The marker's approximate dimensions are 4 inch (100 mm) width by 2 inch (50 mm) height. The mark er shall have 1 or 2 (as required to be seen) micro-prismatic re flective faces [approximate dimension 1/4 inch x 4 inches (6 mm x 100 mm)].
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Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 951–951 of 1,048. View official source ↗