DEVELOPMENT OF THERMAL CONDUCTIVITY PROBES FOR SOILS AND INSULATIONS.
Eighteen laboratory-type and 3 field-type probes were designed, constructed and tested. Stainless steel, copper and plastic probe sheaths with epoxy resin, ceramic, or Wood's metal fillings were used with bifilar and single or multiple wire constantan heaters. Copper-constantan thermocouples an...
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ftdtic:AD0645337 2023-05-15T15:06:38+02:00 DEVELOPMENT OF THERMAL CONDUCTIVITY PROBES FOR SOILS AND INSULATIONS. Wechsler,Alfred E. LITTLE (ARTHUR D) INC CAMBRIDGE MASS 1966-10 text/html http://www.dtic.mil/docs/citations/AD0645337 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0645337 en eng http://www.dtic.mil/docs/citations/AD0645337 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Geology Geochemistry and Mineralogy (*THERMAL CONDUCTIVITY PROBES) (*SOILS THERMAL CONDUCTIVITY) ARCTIC REGIONS ENGINEERING GEOLOGY CONSTRUCTION MATERIALS TEST EQUIPMENT SNOW ICE THERMOCOUPLES THERMISTORS Text 1966 ftdtic 2016-02-18T19:46:09Z Eighteen laboratory-type and 3 field-type probes were designed, constructed and tested. Stainless steel, copper and plastic probe sheaths with epoxy resin, ceramic, or Wood's metal fillings were used with bifilar and single or multiple wire constantan heaters. Copper-constantan thermocouples and thermistors located both within the probe and on the probe sheath were used as temperature sensors. Probes from 0.020 in. to 1/4 in. in diam. and from 3 to 24 in. in length were used. The probes were laboratory tested in dry and moist silt, gravelly sand, beaded polystyrene, and Foam-glass insulations over the temperature range from -40 to +90F. Measurements were also made in snow, ice, insulation boards, dry and moist silt, and gravel. The results of the tests indicate that the design and construction of probes for measurements of thermal conductivity of soils and insulating materials can be based on theoretical considerations with reasonable assurance of good probe performance and that the probes are useful and valuable for laboratory and field measurements. Text Arctic Defense Technical Information Center: DTIC Technical Reports database Arctic |
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Defense Technical Information Center: DTIC Technical Reports database |
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language |
English |
topic |
Geology Geochemistry and Mineralogy (*THERMAL CONDUCTIVITY PROBES) (*SOILS THERMAL CONDUCTIVITY) ARCTIC REGIONS ENGINEERING GEOLOGY CONSTRUCTION MATERIALS TEST EQUIPMENT SNOW ICE THERMOCOUPLES THERMISTORS |
spellingShingle |
Geology Geochemistry and Mineralogy (*THERMAL CONDUCTIVITY PROBES) (*SOILS THERMAL CONDUCTIVITY) ARCTIC REGIONS ENGINEERING GEOLOGY CONSTRUCTION MATERIALS TEST EQUIPMENT SNOW ICE THERMOCOUPLES THERMISTORS Wechsler,Alfred E. DEVELOPMENT OF THERMAL CONDUCTIVITY PROBES FOR SOILS AND INSULATIONS. |
topic_facet |
Geology Geochemistry and Mineralogy (*THERMAL CONDUCTIVITY PROBES) (*SOILS THERMAL CONDUCTIVITY) ARCTIC REGIONS ENGINEERING GEOLOGY CONSTRUCTION MATERIALS TEST EQUIPMENT SNOW ICE THERMOCOUPLES THERMISTORS |
description |
Eighteen laboratory-type and 3 field-type probes were designed, constructed and tested. Stainless steel, copper and plastic probe sheaths with epoxy resin, ceramic, or Wood's metal fillings were used with bifilar and single or multiple wire constantan heaters. Copper-constantan thermocouples and thermistors located both within the probe and on the probe sheath were used as temperature sensors. Probes from 0.020 in. to 1/4 in. in diam. and from 3 to 24 in. in length were used. The probes were laboratory tested in dry and moist silt, gravelly sand, beaded polystyrene, and Foam-glass insulations over the temperature range from -40 to +90F. Measurements were also made in snow, ice, insulation boards, dry and moist silt, and gravel. The results of the tests indicate that the design and construction of probes for measurements of thermal conductivity of soils and insulating materials can be based on theoretical considerations with reasonable assurance of good probe performance and that the probes are useful and valuable for laboratory and field measurements. |
author2 |
LITTLE (ARTHUR D) INC CAMBRIDGE MASS |
format |
Text |
author |
Wechsler,Alfred E. |
author_facet |
Wechsler,Alfred E. |
author_sort |
Wechsler,Alfred E. |
title |
DEVELOPMENT OF THERMAL CONDUCTIVITY PROBES FOR SOILS AND INSULATIONS. |
title_short |
DEVELOPMENT OF THERMAL CONDUCTIVITY PROBES FOR SOILS AND INSULATIONS. |
title_full |
DEVELOPMENT OF THERMAL CONDUCTIVITY PROBES FOR SOILS AND INSULATIONS. |
title_fullStr |
DEVELOPMENT OF THERMAL CONDUCTIVITY PROBES FOR SOILS AND INSULATIONS. |
title_full_unstemmed |
DEVELOPMENT OF THERMAL CONDUCTIVITY PROBES FOR SOILS AND INSULATIONS. |
title_sort |
development of thermal conductivity probes for soils and insulations. |
publishDate |
1966 |
url |
http://www.dtic.mil/docs/citations/AD0645337 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0645337 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0645337 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
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1766338201563168768 |