Specifications include, but are not limited to: Apply Dust Palliative at Alakanuk, Emmonak, Holy Cross, Mountain Village, Nunam Iqua, Pilot Station, and Russian Mission airports.; The intent of the Contract is to provide for the construction and completion of every detail of the described work. The Contractor shall furnish all labor, material, supervision, equipment, tools, transportation, supplies, and other resources required to complete the work in the time specified and according to the Contract.; Furnish all materials, equipment, and labor necessary to apply an approved dust palliative in accordance with these Specifications at the locations shown on the Plans.; The Contractor shall submit dust palliative manufacturer certification of compliance and documentation substantiating conformance to all requirements listed below at least 5 days prior to the pre-construction conference. Failure to meet any requirement or to provide acceptable documentation will result in rejection of the proposed product for use on the project. The dust palliative must be capable of being topically applied over a prepared gravel surface.; An evenly applied spray application method shall be used. The dust palliative shall not be applied to a saturated surface, or when the in-situ moisture levels are greater than Optimum Moisture Content (OMC) +3% of the surface being treated.; Provide equipment for applying the dust palliative that conforms to the manufacturer’s requirements and the following: Use a distributor that is designed, equipped, maintained and operated to apply the dust palliative uniformly through a calibrated spray bar system in accordance with the application rates. Nozzle height for application shall not exceed 20 inches.; Supply and follow the manufacturer’s detailed guidelines or procedures for applying their product to surfaces. Ensure that the application system provides a uniform delivery of the dust palliative at the required application rates, and with an overlap of the spray pattern recommended by the dust palliative manufacturer.; Prior to full production the Contractor shall construct a control strip, a minimum of 250 square yards, and incorporating a minimum of two adjacent panels. The test area will be designated by the Engineer in an area representative of the project. The control strip will demonstrate application at the manufacturer’s recommended rate, as well as to demonstrate the equipment and placement methods to be used. If the control strip should prove to be unsatisfactory, the necessary adjustments to the dust palliative application rate, placement operations and equipment shall be made. Additional control strips shall be placed and evaluated if required. Full production shall not begin without the Engineer’s approval of an appropriate application rate. Acceptable control strips shall be paid for in accordance with Subsection 167-5.1.
