A.
The contractor shall construct a two-course bituminous
concrete pavement laid to conform to the required grade, thickness
and cross section shown on the plans and specifications. The base
course shall have a minimum compacted depth of four inches and the
surface course shall have a minimum compacted depth of two inches.
B.
Materials and method of construction shall conform
to Section 401 of the current New York State Department of Transportation
Standard Specifications.
C.
An asphaltic concrete binder course shall be uniformly
spread by a self-propelled mechanical spreader with activated screed
or strike-off assembly and a heating unit in sufficient depth to provide
a finished compacted thickness as specified above after rolling thoroughly
with a ten-ton roller.
D.
After the binder course has been completed and thoroughly
cleaned of foreign material and a tack coat of asphalt emulsion applied
to the surface (at the rate of 0.1 gallon to 0.2 gallon per square
yard), in the event that the binder course has been subject to traffic
for an extended period of time, a final wearing course of fine asphaltic
concrete shall be uniformly spread by a self-propelled mechanical
spreader equipped with activated screed or strike-off assembly and
a heating unit and in sufficient depth to provide the finished compacted
thickness as specified above after rolling thoroughly with a two-
or three-wheel tandem roller weighing approximately 10 tons.
E.
Extreme care shall be exercised in the placing of
bituminous concrete to ensure that all longitudinal joints shall be
lapped in the placing of adjoining passes and that all lateral joints
are trimmed before continuing with the placing of additional materials
on that pass.
A.
The contractor shall construct bituminous surface
treatment (double-course) as specified in approved plans and meeting
the requirements of Section 410-3.02 of the current New York State
Department of Transportation Standard Specifications.
B.
Shoulders of highways with bituminous macadam pavement
shall be treated with additional surface treatment for surface texture
and color contrast meeting the requirements of Section 4103.04 of
the current New York State Department of Transportation Standard Specifications.
