Surplus excavated clean material not needed as specified above shall be hauled away
and disposed of by the Contractor at no additional cost to the Owner, to the Nashua
Landfill. Arrangements must be made with the Owner prior to delivery. Disposal
of all rubble shall be in accordance with all applicable local, state and federal
regulations.
END OF SECTION
02300-10
3.04
4. Class B backfill shall be placed from the top of the select backfill to the
specified material at grade (loam, pavement sub-base, etc.). Fill compaction
shall meet the density requirements of this specification.
5. Water Jetting:
a. Water jetting may be used when the backfill material contains less than
10 percent passing the number 200 sieve, but shall be used only if
approved by the Engineer.
The Engineer reserves the right to test backfill for conformance to the
specifications and Contractor shall assist as required to obtain the information.
Compaction testing will be performed by the Engineer or by an inspection
laboratory designated by the Engineer, engaged and paid for by the Contractor.
If test results indicate work does not conform to specification requirements, the
Contractor shall remove or correct the defective Work by re-compacting where
appropriate or replacing as necessary and approved by the Engineer, to bring
2.
After the excavation has been made, and before forms are set for footings, mats,
slabs, or other structures, and before reinforcing is placed, all loose or
disturbed material shall be removed from the sub-grade. The bearing surface
shall then be compacted to meet the requirements of this specification.
In all excavation areas, the Contractor shall strip the surface topsoil layer and
underlying subsoil layer separate from underlying soils. In paved areas, the
Contractor shall first cut pavement as specified in paragraph 3.02 B.1 of this
specification, strip pavement and pavement sub-base separately from
underlying soils. All excavated materials shall be stockpiled separately from
each other within the limits of work.
2. The gradation shall meet the following requirements:
Sieve Designation Percentage Passing
3 in. 100
2 in. 95 — 100
1 in. 55-85
No. 4 27-52
No. 200 0-12
the No. 200 sieve; no stone greater than two-third (2/3) loose lift thickness, or
six inches, whichever is smaller.
2. Select Backfill:
Select backfill shall be granular, well graded friable soil, free of rubbish, ice,
snow, tree stumps, roots, clay and organic matter, and other deleterious or
organic material; graded within the following limits:
Sieve Size Percent Finer by Weight
3” 100
No. 10 30 - 95
No. 40 10-70
No. 200 0-10
H. SPECIAL PIPE BEDDING MATERIAL
PART 2 - PRODUCTS
2.01 MATERIAL:
A. GRAVEL BORROW:
Gravel borrow shall consist of inert material that is hard, durable stone and coarse
sand essentially free of organic matter, plastic fines (clay) and debris, and shall
meet the gradation requirements below:
Sieve Opening Percent Passing (weight)
6 inch 100
No 4 25 - 70
No 200 0-12
1.04
1.05
1.06
1.07
SUBMITTALS: IN ACCORDANCE WITH REQUIREMENTS OF GENERAL
SPECIFICATIONS, SUBMIT THE FOLLOWING:
Samples of all materials proposed for the project shall be submitted to the Engineer for
review. Size of the samples shall be as approved by the Engineer.
PROTECTION OF EXISTING PROPERTY:
SECTION 02300
EARTHWORK
PART 1 - GENERAL
1.01
1.02
595 AO BD }
es
1.03
WORK INCLUDED:
The Contractor shall make excavations of normal depth in earth for trenches and structures,
shall backfill and compact such excavations to the extent necessary, shall furnish the
necessary material and construct embankments and fills, and shall make miscellaneous
earth excavations and do miscellaneous grading.
RELATED WORK:
