In-situ determination of moisture in road pavement by nuclear methods.

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dc.contributor.authorGray, GWen_AU
dc.contributor.authorSowerby, BDen_AU
dc.contributor.authorYoudale, GPen_AU
dc.date.accessioned2007-11-22T04:18:47Zen_AU
dc.date.accessioned2010-04-30T04:29:49Zen_AU
dc.date.available2007-11-22T04:18:47Zen_AU
dc.date.available2010-04-30T04:29:49Zen_AU
dc.date.issued1981-04en_AU
dc.description.abstractThe use of neutron moisture probes to determine moisture in compacted pavement layers has been studied on samples representative of those used by the New South Wales Department of Main Roads for roadway construction. The aim of this work was to measure the average moisture content of the upper layer (15-20 cm thick) with minimum interference from moisture in underlying layers. Sub-surface probes using high (α-Be) and low (α-Li) energy neutron sources were examined; conventional α-Be sources in specially designed compact probes should result in an error due to base moisture and density variations of less than 0.4 wt % moisture. As this error is probably less than those due to sampling and geometry variations in the field such a probe should be sufficiently accurate for DMR requirements. If less sensitivity to base moisture is required the α-Li source will reduce this sensitivity by a factor of about 1.4.en_AU
dc.identifier.citationGray, G. W., Sowerby, B. D., & Youdale, G. P. (1981). In-situ determination of moisture in road pavement by nuclear methods (AAEC/E511). Lucas Heights, NSW: Australian Atomic Energy Commission, Research Establishment.en_AU
dc.identifier.govdoc185en_AU
dc.identifier.isbn0642597103en_AU
dc.identifier.otherAAEC-E-511en_AU
dc.identifier.placeofpublicationLucas Heights, New South Walesen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/301en_AU
dc.language.isoen_auen_AU
dc.publisherAustralian Atomic Energy Commissionen_AU
dc.subjectMoisture gagesen_AU
dc.subjectSoilsen_AU
dc.subjectHumidityen_AU
dc.subjectNeutron sourcesen_AU
dc.subjectPrompt neutronsen_AU
dc.titleIn-situ determination of moisture in road pavement by nuclear methods.en_AU
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