PART 2 - PRODUCTS
2.01 CRUSHED GRAVEL SUBBASE:
A. Crushed gravel subbase shall conform to NHDOT Item 304.3 Crushed Gravel, or
Item 304.4 Crushed Stone (Fine Gradation).
2.02 BITUMINOUS CONCRETE PAVEMENT:
A. The type of bituminous pavement courses to be utilized on this project shall be:
Roadway Pavement Section
Layer Description Thickness (inches)
Temporary Pavement (Single Course)
NHDOT 12.5mm Superpave 3” Arterial Streets
(50 Gyration Design)
2” Residential Streets
Permanent Wearing Course
NHDOT 9.5 mm Superpave 1-1/2” Arterial &
(75 Gyration Design) Residential Streets
Permanent Binder Courses
NHDOT 19 mm Superpave 5-1/2” Arterial Streets
(50 Gyration Design)
3-1/2” Residential
Streets
B. The joint sealant shall be a hot poured rubberized emulsified asphalt sealant meeting
the requirements of Federal Specifications SS-S-1401 or SS-S-164.
C. TACK COAT:
A. The tack coat shall be an asphalt emulsion, RS-1.
B. The Tack Coat shall be applied to all vertical seams and joints, and between
the bituminous binder and wearing course layers.
C. The surface to which the Tack Coat will be applied shall be prepared as
detailed in the NHDOT, Standard Specifications 410.3.3.1.
D. The Tack Coat shall be applied as detailed in the NHDOT Standard
Specifications 410.3.4.1
E. The Tack Coat shall be applied at a rate as detailed in the NHDOT Standard
Specifications 410.3.4.1.1, and as approved by the Engineer.
2022 Sewer Replacement Project Road Restoration
Nashua, NH 02745-3
