Inspections. Inspection by the municipality will, at a minimum, be
made of the subgrade prior to placement of the base course, and of
the base course prior to placement of the binder surface.
Certificates. Submit certification from bituminous and aggregate
suppliers attesting that materials conform to Publication 408. Submit
bituminous concrete mix design for approval. Provide PennDOT certifications
with each load delivered to the job site.
Take measures to control traffic during paving operations. Do
not allow traffic on newly paved areas until adequate stability and
adhesion have been attained and the material has cooled to 140°
F. or less.
Protection of adjacent areas. Restore existing surface outside the
limits of the work, that has been damaged by the contractor's
operations, to its original condition at the expense of contractor.
For driveway restoration, use air-entrained, PennDOT Class HES (high
early strength). (Three-day compressive strength of 3,000 psi, twenty-eight-day
compressive strength of 3,750 psi, as per Section 704 of Pub. 408).
Bituminous materials and aggregates. All bituminous materials and aggregates used in base course construction, paving, and resurfacing are designated in these specifications by, and shall conform to, the applicable portions of the Publication 408 Specifications. See descriptions in Articles VIII and XI.
Place temporary paving immediately upon completion of trench backfilling.
Unpaved trenches shall not remain unpaved longer than five working
days after backfilling, nor over weekends and holidays.
Place temporary paving material. Compact to required minimum thickness
with trench roller having a minimum 300 pounds pressure per inch-width
of compaction.
Construct permanent base and surface courses to the required compacted
thicknesses shown in the Backfill and Surface Restoration Requirements
Table,[1] and in accordance with Publication 408 Specifications.
In state highways, construct permanent paving in accordance with highway
occupancy permit requirements.
Shoulder restoration. Restore shoulders as directed by the municipality.
In state highways, restore in accordance with highway occupancy permit
requirements.
Trim concrete and bituminous driveway surfaces to remove damaged
areas. Saw or cut straight joint lines parallel to the center line
of the trench. Cut offsets at right angles to the trench center line.
Restore existing concrete driveways with a six-inch layer of concrete reinforced with WWF 6 x 6 - W2.9 x W2.9 (6 ga.) wire mesh, placed two inches from top surface. See Article XXVII.
Restore existing bituminous driveways in kind; minimum one-and-one-half-inch
layer wearing course over six-inch layer of select granular material
(2RC).