Exam (elaborations)
NUCLEAR GAUGE HAZMAT TRAINING TEST
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NUCLEAR GAUGE HAZMAT TRAINING TESTStandard Method for
determining the density and moisture content of soils and aggregate bases
through the use of the nuclear equipment.
Summary of Test Method: Density Measurement
A gamma source is placed within the material, and the detected radiation
intensity is proportional to the material's density.
Summary of Test Method: Moisture Measurement
A neutron source is introduced into the material, and the quantity of fast
neutrons detected depends on the hydrogen content, mainly from water in the
material.
Significance and Use
The test method described is useful as a rapid, nondestructive method for the in-
place determination of the wet density of soils and the wet density and moisture
content of aggregate bases.
Apparatus (equipment)
Troxler Model Nuclear Gauge, reference standard, scraper plate, drill rod, drill
rod extraction tool. (reference standard is unique to each gauge)
Test Specimens
This test is conducted on in-place soils or aggregate base material.
Positions
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