2024 Specif ications 315
Article 1 — Description
Apply a mixture of water and emulsion as an aggregate loss preventative or surface seal.
Article 2 — Materials
Furnish materials of the type and grade shown on the plans 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 percentage of total volume, that meets the percentage shown on the plans or as directed.
Article 3 — Equipment
Provide applicable equipment in accordance with Article 316.3., “Equipment.” Furnish the necessary facilities and equipment for determining the temperature of the mixture, regulating the application rate, and securing uniformity at the junction of two distributor loads.
Article 4 — Construction
Apply the mixture when the air temperature is at or above 60°F, or above 50°F and rising. Measure the air temperature in the shade away from artificial heat. The Engineer will determine when weather conditions are suitable for application. The Engineer will select the application temperature within the limits in accordance with Item 300. Apply the material within 15°F of the selected temperature but less than the maximum allowable temperature. Distribute material at the rate shown on the plans or as directed. Open the treated surface to traffic when directed. Furnish and uniformly distribute clean, fine sand on the surface to blot the excess when an excessive quantity of asphalt is applied. Maintain ingress and egress as directed by applying sand to freshly sealed areas.
Article 5 — Measu Rement
The treatment will be measured by the gallon of emulsion 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.
Article 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 “Fog Seal” of the type and grade specified. This price 2024 Specif ications 315 252 is full compensation for materials, including emulsion and water, and for equipment, labor, tools, and incidentals. Blotter sand will not be measured or paid for directly but will be subsidiary to this Item.