Montana Department of Transportation (MDT) · 2020 Standard Specifications for Road & Bridge Construction
Section 407 — Tack Coat
Montana 2020 Standard Specifications for Road & Bridge Construction, Section 407. Full text, cross-references and related pay items on BuildSpec.
SECTION 407 TACK COAT 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…
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