Asphalt Rubber Chip Seal Specification

The binder may be cold or hot applied.

Asphalt rubber chip seal specification.

Hot applied binders can be polymer modified asphalt cements asphalt rubber and polymer crumb rubber blends as well as unmodified asphalt cements. The state chip seal specifications. Section 37 seal coats 4 3701 general. Chip seal is also known as macadam named for a scottish pioneer for paved roads.

Ct public works highway departments covid 19. Paving applications that use crumb rubber include seal coats or chip seals hot mix asphalt pavement or flexible pavement and crack sealer. Chip seal is an application of bituminous material followed by a layer of. Double chip seal specification description the contractor shall furnish all labor equipment material supplies environmental protection no parks raised markers signage traffic control secondary sweeping and other incidentals necessary to provide a double application of polymerized emulsified asphalt cover coat aggregate and a fog.

Distribution statement copies available from ntis and online at. For asphalt rubber binder chip seals surface temperature must be at least 55 f and air temperature must be 60 105 f. The results will also determine if the macro texture based new zealand chip seal performance specification is applicable for oregon chip seals. 7 3 2 chip seal design properly designed chip seals have proven to be cost effective in sealing pavements and providing a new riding surface with enhanced frictional characteristics.

Detailed specifications chip seal section 410 chip seal 410 1 description. August 2020 edition leadership lessons. The engineer john mcadam invented the revolutionary crushed stone layer roads with binders in the early 1800s. Chip seal shoulders only item to be selected only when the mainline pavement will not be chip sealed.

Key words chip seal asphalt emulsion hot applied chip seal design chip seal specifications. The specifications for aggregates used in chip seals are included in section 37 1 02 of the standard specifications. This work shall consist of the construction of a single course chip seal for pavements and or shoulders in accordance with the contract documents. The standard chip seal specifications for these agencies are summarized and compared 2 5 spokane county self performs chip seals unlike the three other agencies.

Many countries have developed rational. This section provides guidelines for inspecting work for applying seal coats as specified under section 37 seal coats of the standard specifications which includes chip seals slurry seals micro surfacing fog seals flush coats parking area seals and crack treatments. In a chip seal road a thin layer of asphalt is laid down before layers of crushed stone and aggregate are compacted on top of the asphalt. Refer to txdot specification item 300 for several requirements for tire rubber crumb rubber modified asphalt and asphalt rubber.

Different types of binders can be used in a chip seal.