- 331 - SECTION 506 -- ASPHALTIC CO NCRETE ISLAND NOSES AND MEDIANS
506.01 Description
1.This work consists of constructing asphaltic concrete island noses and medians as shown in the contract.
506.02 Material Requirements
1.Island noses and medians shall be constructed from the same type of asphaltic concrete mixture used in the surface course or a commercially available asphaltic concrete approved by the Engineer.
506.03 Construction Methods
1.Asphaltic concrete construction methods described in Section 503 shall also govern island nose and median construction.
2.The Contractor shall use equi pment and methods that insure the asphaltic concrete island noses and medians are constructed to a uniform density with a smooth surface texture.
3.a. The Contractor shall clean and apply a tack coat to the contact surface. The tack coat shall be applied in accordance with the requirements of Section 504 and shall extend 4 inches (100 mm) beyond all sides of the nose. The rate of application shall be as directed by the Engineer.
b.Heating the surface may be required to achieve a bond with the new asphaltic concrete. The heat ing shall be performed so that no portion of the asphaltic concrete is damaged by excessively high temperatures.
4.The Contractor shall seal the newly constructed island nose and/or median by the application of a tack coat. The application rate will be determined by the Engineer.
506.04 Method of Measurement
1."Construct Asphaltic Concrete Island Nose" will be measured by the each.
2.Asphaltic concrete for a median is included in the roadway materials and a separate pay item for m edian construction is not authorized.
506.05 Basis of Payment 1. P a y I t e m P a y U n i t
Constructing Asphaltic Each (ea) Concrete Island Nose
2.Materials required to construct island noses and all construction costs for medians are included in the roadway pay items for "Asphaltic Concrete, Type _____" and "Performance Graded Binder_____".
3.Payment is full compensation for all work described in this Section. - 332 - SECTION 507 -- ASPHALTIC CONCRETE FOR STATE MAINTENANCE PATCHING
507.01 Description
1.Asphaltic concrete for State maintenance patching shall be the type designated by the pay item. Department trucks shall be allowed to load material at any time specified types of asphaltic concrete are being produced, provided the Contractor has been given 1 day's notice.
507.02 Method of Measurement
1.Asphaltic concrete for State maintenance patching shall be measured on approved scales.
507.03 Basis of Payment
1.P a y I t e m P a y U n i t Asphaltic Concrete for State Ton (Tn) Maintenance Patching, Type ______ [Megagram (Mg)] Performance Graded Binder ______ Ton (Tn) for State Maintenance Patching [Megagram (MG)]
2.Payment is full compensation for all work described in this Section.
Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 365–365 of 1,048.