A. Routing • Routing may be required on cracks less than 1/8-inch wide B. Cleaning • Cleaning shall be accomplished with an air compressor capable of producing a minimum of 125 cfm (.06 cubic meters per second) output. • Air compressor shall be equipped with traps or filters capable of removing all water and oil from compressor. • Blow wand shall be equipped with a maximum ¾-inch (20 mm) nozzle. • Reservoirs and cracks shall be thoroughly cleaned and free of dust, dirt and any loose materials. • Reservoirs and cracks shall be clean and dry at the time the blocking medium or sealant is applied. • If a cleaned or routed reservoir or crack is left unsealed overnight, it shall be cleaned again prior to application of the blocking medium or sealant. • All foreign material accumulated from the cleaning process shall be removed from the roadway prior to opening the roadway to traffic. C. Sealing • All sealant will be Crafco Roadsaver 221 or Deery 102 or equal and shall be supplied by the Contractor. • All blocking medium shall be supplied by the Contractor. • Sealant shall be applied by a pressure type applicator. • Cracks 3/8-inch (10 mm) or greater in width, which exist below the routed and cleaned reservoir, shall be filled with a blocking medium to insure a minimum sealant depth equal to the width of the reservoir or crack. • Sealant material shall be placed within 12 hours of cleaning or routing. • There shall be no visible signs of moisture on the roadway surface or in the reservoir at the time the sealant is applied. • The manufacturer’s specifications for handling, mixing and application temperature procedures for the sealant shall be strictly followed. • Reservoirs and cracks shall be overfilled and squeegeed to provide a film of sealant on the roadway surface one to three inches (25 to 75 mm) on both sides of the reservoir or crack. • The squeegee shall be a “U” shaped device which will produce a full, uniform and neat appearing reservoir and adjoining surface area. • All other types of squeegees shall be approved of by the Street Manager/Supervisor prior to usage. • A bonding material or blotting material shall be placed over the sealant if the roadway is to be opened to traffic before “track free” status has been achieved. • Any reservoir damaged by traffic shall be repaired or refilled at the Contractors expense. • All measurements will be by the city block, and the total linear feet per block is required. D. Completion • The Contractor shall state the date that the project shall commence and the date that the Contractor shall have the project completed by. • The Contractor shall take into consideration the possibility of inclement weather in preparing work schedule. • Any weather days given the Contractor to extend the completion date shall be at the sole discretion of the City. The City will take into consideration the duration and severity of any weather during the contract period as well as the number of days and hours the Contractor has been working at full force on the project. E. Must provide a minimum of three (3) references relating to similar work you have done for city, county, or state governments with full name, title, address, phone and fax numbers.
