Specifications for Crack Sealing Bituminous Concrete

1. Clean major pavement cracks greater than ¼ inch width with forced air, power wire wheel and/or clean by hand where necessary. Prepared cracks shall be clean and dry and free of all foreign debris prior to filling. Heat lance or heat flash cleaned crack where necessary.

2. Fill cracks with hot-applied liquid rubberized crack and joint sealant. Material shall meet or exceed Federal Specification 3405 and shall be installed according to manufacturer’s recommendations using a double jacketed melter. Material shall be applied by use of a pressurized wand or pour pots.

3. A four-inch wide over band shall be installed and leveled by striking with a squeegee to assure proper adhesion and to match existing pavement grade.

4. Apply a non stick agent to finished crack repaired areas to prevent tracking should immediate access be required.

Specifications for Seal Coating Bituminous Concrete Surfaces

1. All crack sealing and asphalt patching shall be completed prior to seal coating.

2. Clean and air sweep blacktop surfaces to be seal coated removing all loose and foreign debris.

3. Degrease, heat flash where necessary and coat pavement oil spots with PERMAPRIME Oil Spot Primer or equal prior to seal coating.

4. Apply two coats of PERMASEAL or equal coal tar emulsion asphalt sealer according to manufacturer’s recommendations to surfaces to be sealcoated. Heavy-duty coal tar emulsion will be mixed with PERMATUFF or equal coal tar latex additive and silica sand. The batch formula shall be the following per cents of volume and verifiable by laboratory testing.

The minimum application rate for both coats combined will be .30 gallons of sealant per square yard of surface area. A multi-tip spray bar unit shall be used to apply seal coat to larger areas. Coal tar emulsion shall meet or exceed Federal specification RP355E. Apply 3rd coat to high traffic drive lanes when practical.

5. Furnish and provide in writing a two year warranty against seal coated areas showing premature wear, lifting, or peeling except when caused by cinders, plows, tire chains or any other physical grinding of the surface.

Specifications for Striping Seal Coated Areas

Layout and repaint all previously existing surface traffic markings with commercial grade acrylic latex traffic paint.