- 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. - 333 - SECTION 508 -- JOINT SEALING - ASPHALT TO CONCRETE
508.01 Description
1.This work shall consist of sealing joints between asphaltic concrete surfacing and Portland cement concrete pavement.
508.02 Material Requirements
1.Rubber-asphalt joint filler shall be a mixture of, paving grade asphalt binder, vulcanized recycled rubber, and other additives such as polymer modifier(s).
2.The mixture, when heated in accordance with the supplier's instructions, shall produce an easily applied, flexible, and adhesive compound that will effectively seal join ts between Portland cement concrete and the asphaltic concrete under typi cal Nebraska climatic conditions.
3.The joint filler shall contain no solvents, shall be self-leveling, and shall cure upon cooling to a consistenc y that will not be tracked by traffic.
4.The joint filler shall be suitable for melting and application with a conventional melter-applicator unit.
5.The joint filler shall be a pre-re acted blend of product. The joint filler shall not require additional heating ti me for application after it has reached the manufacturer’s recommended mi nimum application temperature. New joint filler may be added to the material that has already been heated to the minimum application temperature.
6.When heated in accordance with ASTM D5167 to the maximum heating temperature, the joint filler shall meet the Nebraska Specifications of CR18B, as noted below in Table 508.01.
Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 366–366 of 1,048.