Effect of iron on the determination of moisture content by the neutron method

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DOIResolve DOI: http://doi.org/10.1139/e66-010
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TypeArticle
Proceedings titleCanadian Journal of Earth Sciences
ConferenceMoisture in Materials in Relation to Fire Tests, June 1964
ISSN0008-4077
Volume3
Issue1
Pages129132; # of pages: 4
Subjectmoisture content; hygrometers; neutrons; chemical analysis; properties of soils; hygrometre; neutron; analyse chimique; caracteristique du sol
AbstractIn the use of a neutron hygrometer, the difference observed between moisture content values measured in a laboratory and those recorded in the field is explained by the presence in natural soils of an element which absorbs neutrons in sufficient quantity to reduce the count rate by 11%. Chemical analyses revealed a 7% content of iron, of which the effective capture cross section is slightly greater than that of the other elements found in natural soils. A series of experiments on an artificial soil, to which increasing quantities of iron were added, confirmed the fact that iron in natural soil largely explains the observed difference.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
IdentifierDBR-RP-277
NRC number8770
231
NPARC number20374229
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Record identifierf4910faa-0eec-4f0f-bebb-9e6583bd9b42
Record created2012-07-23
Record modified2016-05-09
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