ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 6

Suggested Test Method for Determination of Thermal Conductivity of Soil by Thermal-Needle Procedure

Chaney, RC
Associate professor, Humbolt State University, Arcata, CA

Ramanjaneya, G
Senior engineer, electronics technician, and soils technician, ERTEC Western, Inc., Long Beach, CA

Hencey, G
Senior engineer, electronics technician, and soils technician, ERTEC Western, Inc., Long Beach, CA

Kanchanastit, P
Senior engineer, electronics technician, and soils technician, ERTEC Western, Inc., Long Beach, CA

Fang, H-Y
Professor, Lehigh University, Bethlehem, PA

Abstract

A method is proposed for determining the thermal conductivity k or thermal resistivity p of soils. The procedure is based on the use of a transient heat method in which a thermal needle is used to create a linear heat source, and a thermocouple is used to monitor temperature changes with time. This suggested method describes the basic procedure. Information is also presented on the construction and calibration of the thermal needle.

Keywords:
soil tests, thermal conductivity, laboratory tests, thermal resistivity, transient heat method, thermal needle, thermal probe

Paper ID: GTJ10927J
DOI: 10.1520/GTJ10927J
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