B. BASE COURSE AND BINDER COURSE PAVEMENT:
1. Immediately prior to installing the base and/or binder course, the trimmed edges shall
be made stable and unyielding, free of loose or broken pieces and all edges shall be
thoroughly broomed clean. Contact surfaces of trench sides, curbings, manholes,
catch basins, or other appurtenant structures in the pavement shall be painted
thoroughly with a uniform coating of asphalt emulsion (tack coat), just before any
mixture is placed against them.
2. The binder course shall be repaired as necessary to maintain the surface of the
pavement until placement of the permanent overlay. If required, the Contractor shall
place a leveling course before placing the permanent overlay.
C. TOP COURSE OR SURFACE TREATMENT PAVEMENT :
1. Top course or surface treatment shall be placed over the full width as shown on
the drawings or as specified.
2. Prior to placement of the top course or surface treatment, the entire surface over
which the top course or surface treatment is to be placed shall be broom cleaned and
tack coated.
3. Top course or surface treatment pavement placed over trenches may be feathered to
meet existing paved surfaces, if approved by the Engineer.
3.05 PAVEMENT PLACEMENT:
A. Unless otherwise permitted by the Engineer for particular conditions, only machine
methods of placing the pavement shall be used. The equipment for spreading and finishing
shall be mechanical, self-powered pavers, capable of spreading and finishing the mixture
true to line, grade, width and crown. The mixtures shall be placed and compacted only at
such times as to permit proper inspection and checking by the Engineer.
B. After the paving mixtures have been properly spread, initial and intermediate compaction
shall be obtained by the use of steel wheel rollers having a weight of not less than 240
pounds per inch width of tread.
C. — Final rolling of the top course or surface treatment pavement shall be performed by a steel
wheel roller weighing not less than 285 pounds per inch width of tread at a mix
temperature and time sufficient to allow for final smoothing of the surface and thorough
compaction.
D. Immediately after placement of top course or surface treatment pavement, all joints
between the existing and new top course or surface treatment pavements shall be sealed
with hot poured rubberized asphalt sealant meeting the requirements of Federal
Specification SS-S-1401 or SS-S-164.
2019 CIPP Lining Project Road Restoration
Nashua, NH 02745-5
