How To Install 4x8 Brick Pavers South Florida
Compaction tests should be conducted on bases subject to vehicles, including
driveways. When spread and compacted, the aggregate base should be at its
optimum moisture. A moisture meter on a nuclear density gauge can be used
to quickly assess the amount of water in the base. A quick field test is pressing a
handful of base material in the palm. If the particles stick to each other, there is a
sufficient amount of moisture. If it is too wet, it should be allowed to dry. If it is
too dry, water can be added by spraying it over each lift prior to compaction.
Density measurements of the compacted base should be made with the
nuclear density gauge, compaction sensors, dynamic cone penetimeter or other
methods approved by the local, state or provincial transportation department.
A nuclear density gauge requires trained technicians to use them. However,
the actual cost of the test is far lower than the cost of returning to the site to
make repairs. It is the best insurance of quality control for the contractor. The
contractor should contact an experienced soils testing company to measure
density and moisture content.
Special attention should be given to testing and achieving compaction
standards in corners, against concrete curbs, against walls, around utility
structures, and over wet soils. These are places where settlement is most likely to
occur. These areas often cannot be compacted with large compaction equipment.
They may need a small machine compactor or the use of a hand tamper.
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Nilson Ricardo
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