407 Tack Coat

1. Specification:

Item 407.02 C&MS

Coarse aggregate per Item 703.06

2. Sampling and/or Inspection Requirements:

Do not apply tack coat to asphalt concrete if the surface temperature is below the minimum placement temperature for the pavement course to be placed, as specified in 401.06. The Engineer will not accept excessive application resulting in an unbonded layer of cover aggregate.

Certified asphalt binder, one sample for each project, except for inconsequential quantities. Non-certified asphalt binder must be sampled and approved by the OMM Asphalt Section. Sample size, one pint.

3. Method of Tests:

AASHTO M140 or M208