Technical Specifications IFB0660-040617
2017 Pavement Preservation
Revised per Addendum #1
ITEM 304.112 - RECLAIMED STABILIZED BASE PROCESSED IN PLACE, 12” DEEP
A. SCOPE
This work shall consist of scarifying, if necessary, and pulverizing the existing pavement
together with subbase material to a depth of 12 inches, removal and disposal of excess reclaim
material, fine grading to elevations provided or as directed by the Engineer, and compaction of
materials to required densities. There will be approximately three inches of excess material to be
removed in order to accommodate three inches of asphalt. The material removed from this
operation shall remain the property of the City of Nashua and shall be transported and stock piled
by the contractor at the Four Hills Landfill at 830 West Hollis St in Nashua. This work will also
include installing and maintaining survey stakes at 25 foot intervals for edge of pavement and
centerline. Survey stakes shall be marked to clearly identify proposed elevations.
B. MATERIALS AND CONSTRUCTION
The Contractor shall furnish all materials, labor and equipment necessary for reclaimed
stabilized base, processed in place, in accordance with relevant provisions of section 306 of the
NHDOT Standard Specifications for Road and Bridge Construction, latest edition.
Compaction shall be accomplished using a vibratory sheep’s foot roller or pad foot roller with at
least 50,000 Ibs. of dynamic force. Final rolling shall be accomplished by a smooth steel wheel
vibratory roller with at least 27,000 Ibs. of dynamic force. Contractor shall also provide
compaction equipment sufficient to achieve required densities in areas not accessible by larger
equipment.
Fine grading to proposed grades shall be subsidiary. Removal, transportation, and disposal of
approximately 3” of material are subsidiary.
After site has been fine graded, compacted, and survey stakes installed, the Contractor will allow
1 day for grades to be verified. In no case shall paving be scheduled prior to verification of
proposed grades.
All catch basins must be protected from reclaimed materials by use of a silt sack. All materials,
labor, equipment, and transportation necessary to install, maintain, and remove the silt sacks
shall be subsidiary.
C. MEASUREMENT AND PAYMENT
Reclaimed stabilized base in place, 12 inch deep shall be paid by the square yard and shall
include full compensation for material, equipment, labor, and transportation required to complete
this portion of the Bid Schedule.
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