barrier will be indicated and will not be less than
100 mm (4 inches). The paragraph will be deleted
where site conditions make the barrier unnecessary.
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Capillary water barrier under concrete floor and area-way slabs on grade
shall be placed directly on the subgrade and shall be compacted with a
minimum of two passes of a hand-operated plate-type vibratory compactor.
3.16.3
Grading Around Structures
Areas within 1.5 m 5 feet outside of each building and structure line shall
be constructed true-to-grade, shaped to drain, and shall be maintained free
of trash and debris until final inspection has been completed and the work
has been accepted.
3.17
PLACING TOPSOIL
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NOTE: Topsoil will be separated, excavated, stored,
and used for surface finish in preparation for
seeding, sodding, or other planting only where the
topsoil is definitely superior for grass and other
plant growth as compared to the balance of the
excavated materials. Generally, topsoil will be
spread after other operations have been completed.
When topsoil spreading is covered under a separate
section of the specifications, this paragraph will
be deleted.
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On areas to receive topsoil, the compacted subgrade soil shall be scarified
to a 50 mm 2 inch depth for bonding of topsoil with subsoil. Topsoil then
shall be spread evenly to a thickness of [_____] mm inches and graded to
the elevations and slopes shown. Topsoil shall not be spread when frozen
or excessively wet or dry. Material required for topsoil in excess of that
produced by excavation within the grading limits shall be obtained from
[offsite areas] [areas indicated].
3.18
TESTING
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NOTE: Density tests other than those specified in
this paragraph may be required for certain types of
soil, in which case paragraph "Degree of Compaction"
will be edited accordingly and the laboratory
compaction requirement applicable to the soil
encountered will be specified. See TM 5-825-2 for a
discussion of conditions requiring nonstandard
compaction control tests.
**************************************************************************
Testing shall be performed by an approved commercial testing laboratory or
by the Contractor subject to approval. If the Contractor elects to
establish testing facilities, no work requiring testing will be permitted
until the Contractor's facilities have been inspected and approved by the
Contracting Officer. Field in-place density shall be determined in
accordance with [ASTM D 1556] [ASTM D 2167] [ASTM D 2922]. [When ASTM D
2922 is used, the calibration curves shall be checked and adjusted using
SECTION 02300
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