B. — Silica sand when blended with seal coat emulsion shall be No. 30 silica sand.
2.04 PAVEMENT MARKINGS:
A. Pavement markings shall conform to the requirements of NHDOT Standard Specifications
632
B. — The mixture of the marking material shall be within the composition limits for reflectorized
pavement markings as described in the NHDOT Standard Specifications as follows:
Thermoplastic reflectorized pavement markings - 632.
C. Application of the glass beads to be used as reflector material on the striping shall conform to
Section 632 of the NHDOT Standard Specifications.
PART3-EXECUTION
3.01 GENERAL:
Paving courses required for the project shall be as shown on the drawings and as specified
herein. Pavement thicknesses specified are measured in compacted inches. If a pavement
course thickness exceeds 2-1/2 compacted inches, the course shall be installed in multiple
lifts with each lift not exceeding 2-1/2 compacted inches in thickness.
3.02 GRAVEL SUBBASE:
A. The crushed gravel subbase to be placed under pavement shall consist of 12-inches of crushed
gravel evenly spread and thoroughly compacted.
B. _ The gravel shall be spread in layers not more than 4-inches thick, compacted measure. All
layers shall be compacted to not less than 95 percent of the maximum dry density of the
material as determined by ASTM D1557 Method C at optimum moisture content.
3.03 TEMPORARY BITUMINOUS PAVEMENT:
A. — Where specified and directed by the Engineer and after placement of the Crushed gravel
sub-base, the Contractor shall place temporary bituminous pavement above the trench,
between the edges of the existing pavement. It shall consist of Class I Bituminous Concrete
Pavement, Type 1-1, 2-inches thick, in accordance with NHDOT Standard Specifications
Section 401.
B. The temporary pavement shall be repaired as necessary to maintain the surface of the
pavement until replaced by permanent pavement. When so directed by the Engineer, the
Contractor shall remove the temporary pavement and install or regrade the sub-base for
installation of permanent pavement.
3.04 PERMANENT BITUMINOUS PAVEMENT:
A. The bituminous paving mixture, equipment, methods of mixing and placing, and the
precautions to be observed as to weather, condition of base, etc., shall be in accordance
with NHDOT Standard Specifications Section 401.
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