H-11B Microsurfacing, Fog Seal and Cape Seal

H-11B Microsurfacing, Fog Seal and Cape Seal SCOPE OF WORK Applied emulsified petroleum resin and/or modified asphalt emulsion to increase the ductility and penetration value of the asphalt binder on the surface; to offset the effects of oxidation by restoring the chemical composition of the asphalt; and to seal the pavement from intrusion of air and water, returning the surface properties to substantially original condition. H-11B-II MICROSURFACING CONVENTIONAL MICRO-SURFACING (CONVENTIONAL AND HiMA) 1. Description Micro-Surfacing is a tough and durable thin overlay material which can restore the original service properties to worn but structurally sound pavements. Its properties are based on a blend of select crushed aggregate and a sophisticated chemical formulation of asphalt cement, cationic emulsifiers, additives, and polymers. This specification covers all materials, equipment, construction and application procedures for rut filling and/or surfacing of existing paved surfaces. The Micro-Surfacing shall be a mixture of cationic, polymer-modified asphalt emulsion, mineral aggregate, mineral and field control additives, and water, properly proportioned, mixed and spread on the paved surface in accordance with this specification and as directed by the Engineer. Where required by the Engineer (Engineer shall mean Town Highway Superintendent or their designee), additional Micro-Surfacing mixture additives shall be utilized for the purpose of improving performance and durability. These mixture additives shall include heavy polymer dosages in the emulsion (6% SBS polymer and referred to as "HiMA", or "Highly Modified Asphalt"), as determined by the Engineer, and all additives shall be homogenously blended with the other Micro-Surfacing components. 2. Materials a) Emulsified Asphalt: The emulsified asphalt shall be a quick-set, polymer-modified cationic type CSS-1H emulsion, and shall conform to the requirements specified in AASHTO M208 and ASTM 2397. It shall pass all applicable storage and settlement tests. The polymer shall be milled into the emulsion, or in the case of the HiMA (6% SBS) emulsion, may be blended into the unmodified base asphalt. The cement mixing test shall be waived for this emulsion. Project was awarded to FELIX A. MARINO CO. and SEALCOATING DBA INDUS with the total amount of $191,422.00.

Division 32 -	Exterior Improvements, Operation and Maintenance of Exterior Improvements.
Division 34 -	Transportation, Operation and Maintenance of Transportation.