Article 1 — Description
Apply a mixture of water and emulsion as a base or subgrade treatment; for erosion control, including dust prevention; or as a prime coat.
Article 2 — Materials
Furnish mat erials of the type and grade shown on the plans and in accordance with the following.
2.1 Emulsion . Furnish emulsified asphalt in accordance with Item 300, “Asphalts, Oils, and Emulsions.”
2.2 Emulsion and Water Mixture . Dilute the emulsion by adding water to create a mixture containing a
proportion of emulsion, expressed as a percent age of total volume, in conformance with the percentage shown on the plans or as directed.
Article 3 — Equipment
Provide a self -propelled sprinkler in accordance with Article 204.3., “Equipment.” Provide current calibration documentation for the tank used for distribution.
Article 4 — Construction
Agitate the emulsion and water mixture to produce a uniform blend. Evenly distribute at the rate selected by the Engineer to locations shown on the plans or as directed.
4.1 Base or Subgrade Treatment . Treat the base or subgrade to the depth and width shown on the plans or as
directed. Regulate the percentage of emulsi on in the mixture and distribute successive applications to achieve the specified rate. Maintain the proper moisture content of the treated material. Mix the treated material, then shape and compact as required by the specification for the course. Finish the course to the line, grade, and typical section shown on the plans. Maintain the surface using light applications of the mixture while curing the course, as directed.
4.2 Erosion Control . Apply the mixture as shown on the plans or as directed.
4.3 Prime Coat . Regulate the percentage of emulsi on in the mixture and distribute successive applications to
achieve the specified rate.
Article 5 — Measurement
The treatment will be measured by the gallon of emul sion at the specified dilution ratio. Material will be measured at the applied temperature by strapping the tank before and after road application. The distributor -calibrated strap stick will be used for measuring the emulsion and water mixture level in the distributor asphalt tank. The certified tank chart will be used to determine the beginning gallons and the final gallons in the distributor tank. The quantity to be measured for payment will be the difference between the beginning gallons and the final gallons. 250 6. PAYMENT The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for “Emulsified Asphalt (Base or Subgrade Treatment),” “Emulsified Asphalt (Erosion Control),” or “Emulsified Asphalt (Prime Coat),” of the type and grade specified. This price is full compensation for materials, including emulsi on and water, and for equipment, labor, tools, and incidentals.