407.01 Description
The work is furnishing and applying emulsified asphalt to a prepared aggregate, constructed bituminous or concrete surface before placing bituminous surfacing.
407.02 Materials
407.02.1 Bituminous Material
Furnish emulsified asphalt in accordance with Table 402-3 and meeting Section 702 requirements.
407.03 Construction Requirements
407.03.1 Weather Limitations
Apply tack coat to a dry surface. Apply the tack coat when the ambient temperature is 50 °F (10 °C) or higher, or when the surface temperature is 35 °F (2 °C) and rising. Do not place plant mix on any surface with a tack coat until the tack coat has cured (breaks) as determined by the Project Manager. Apply the tack coat after the Project Manager has approved the surface to receive the bituminous material. Apply tack coat subject to the surface conditions and weather limitations in accordance with Subsection 401.03.18.
407.03.2 Equipment
Use equipment in accordance with Subsection 410.03.1.
407.03.3 Application of Emulsified Materials
Apply the emulsified asphalt in accordance with Subsection 402.03.9.
407.03.4 Maintenance of Surface
Maintain tack coated surface until covering with subsequent surfacing. Repair all defects, deterioration or disintegration of the underlying surfacing course or courses as directed.
407.03.5 Traffic Control and Protection of Highway Structures
Furnish traffic control meeting the approved traffic control plan and Section 618. Furnish highway structure protection in accordance with Subsection 410.03.9.
407.04 Method of Measurement
Emulsified asphalt is measured by the gallon (L). When not specified as a contract pay item, emulsified asphalt is not measured or paid for but is incidental to and included in the payment for other items of work. Water for diluting emulsified asphalt used in the work is not measured for payment.
407.05 Basis of Payment
Payment for the completed and accepted quantities is made under the following: Pay Item Pay Unit Emulsified Asphalt Gallon (L) 407 – TACK COAT 2020 EDITION V5.1 407-2 The emulsified asphalt quantities in the contract are estimated and may be increased or decreased with no adjustment of the contract unit prices.
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