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A Technique for Obtaining Undisturbed Soil Samples by Freezing in Situ
Author(s) -
Blevins R. L.,
Aubertin G. M.,
Holowaychuk N.
Publication year - 1968
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1968.03615995003200050045x
Subject(s) - in situ , liquid nitrogen , moisture , soil water , soil science , environmental science , soil test , nitrogen , mineralogy , water content , chemistry , materials science , geology , geotechnical engineering , composite material , organic chemistry
A freezing technique employing liquid nitrogen has been developed to freeze soil blocks in situ . This technique makes it possible to collect undisturbed samples from soils that are incoherent, have an abundance of roots or have a high percentage of coarse skeletal materials. The frozen blocks can be transported to the laboratory in a frozen state and eut into desired‐size blocks for bulk density, moisture retention and micromorphological studies.