Group 31555 - Liquid Bituminous Materials (2022 VPP NYSDOT Specific Projects) (Federal and State Funds)

Group 31555 - Liquid Bituminous Materials (2022 VPP NYSDOT Specific Projects) (Chip Seal; Cold Recycling; Heater Scarification; and Joint & Crack Filler/Sealer) Below are descriptions of the various materials to be bid on for the various projects: Chip Seal is a pavement preventive maintenance treatment which consists of single-sized stone embedded in a liquid bituminous material. The liquid bituminous material seals cracks in the existing pavement and the stone provides a high friction wearing surface. Cold Recycling of bituminous concrete pavements is a corrective maintenance technique. The existing pavement is milled off for a depth of 3 to 4 inches (75mm to 100mm) a liquid bituminous material is added to the millings and the resulting mixture is placed and compacted on the milled surface. A new bituminous concrete sealing layer is added later. Existing cracks are eliminated, and the resulting pavement should last for many years. Joint and Crack Filler/Sealers are hot-poured liquid bituminous materials (rubberized asphalt; asphalt cement and polyester fibers; asphalt filler) used to fill and/or seal cracks in the surface of highway pavements. Some products incorporate recycled materials with up to 18% recycled content and up to 18% post-consumer content. Heater Scarification is a continuous multi-step process in which the existing hot mix asphalt (HMA) pavement surface is recycled using specialized equipment. The HMA pavement surface is heated causing the asphalt to soften. The softened asphalt surface is then immediately scarified and milled to a specified depth. The reclaimed asphalt pavement is then mixed with a recycling agent that rejuvenates the asphalt. The recycled mix is then placed and compacted back onto the roadway. A new bituminous concrete sealing layer is added later. Existing cracks are eliminated, and the resulting pavement should provide a longer life.

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Exterior Improvements, Common Work Results for Exterior Improvements, Aggregates for Exterior Improvements, Flexible Paving, Seal Coats, Fuel-Resistant Sealers.