Preparation of artificially frozen sand specimens

Several specimens of artificially frozen sand (ASTM C-109) were prepared to evaluate different testing procedures and techniques used to determine the mechanical properties of frozen soils. Two methods of preparation of fully saturated frozen sand specimens, described by other investigators, were co...

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Main Author: Baker, T H (Harry)
Format: Report
Language:English
Published: National Research Council of Canada. Division of Building Research 1976
Subjects:
sol
Online Access:https://doi.org/10.4224/40000382
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spelling ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:20358693 2024-09-15T18:30:07+00:00 Preparation of artificially frozen sand specimens Baker, T H (Harry) 1976-06 text 17 p. https://doi.org/10.4224/40000382 https://nrc-publications.canada.ca/eng/view/ft/?id=c3305952-a6f6-456f-8140-cd230f91c4a4 https://nrc-publications.canada.ca/eng/view/object/?id=c3305952-a6f6-456f-8140-cd230f91c4a4 https://nrc-publications.canada.ca/fra/voir/objet/?id=c3305952-a6f6-456f-8140-cd230f91c4a4 eng eng National Research Council of Canada. Division of Building Research issn:0381-4319 Paper (National Research Council of Canada. Division of Building Research); no. DBR-P-682, Publication date: 1976-06 doi:10.4224/40000382 open access permafrost pergélisol soils sol frozen soils sol gelé mechanical properties propriété mécanique compaction compactage technical report 1976 ftnrccanada https://doi.org/10.4224/40000382 2024-08-05T14:05:07Z Several specimens of artificially frozen sand (ASTM C-109) were prepared to evaluate different testing procedures and techniques used to determine the mechanical properties of frozen soils. Two methods of preparation of fully saturated frozen sand specimens, described by other investigators, were compared. Compaction by a rodding technique and saturation under vacuum produced a uniform degree of compaction and saturation upon freezing. The most critical part of the preparation procedure leading to physical variability between specimens was found to be the time during freezing and machining. This time span must be kept constant to minimize the effects of sublimation. Plusieurs spécimens de sable géle artificiellement (ASTM C- 109) ont été préparés afin d'évaluer différentes méthodes et techniques d'essai utilisées pour déterminer les propriétés mécaniques de sols gelés. Deux méthodes de préparation de spécimens de sable gelé complètement saturé, décrites par d' autres chercheurs, ont été comparées. Le tassement par une technique de pilonnage et par saturation sous vide a produit un degré uniforme de tassement et de saturation lors de la congélation. La partie la plus critique de la méthode de pré paration pouvant mener à une variabilité physique entre les spécimens a été trouvée comme le temps de congélation et d' ajustage. Cette durée doit être maintenue constante afin de diminuer les effets de la sublimation. Peer reviewed: No NRC publication: Yes Report permafrost pergélisol National Research Council Canada: NRC Publications Archive
institution Open Polar
collection National Research Council Canada: NRC Publications Archive
op_collection_id ftnrccanada
language English
topic permafrost
pergélisol
soils
sol
frozen soils
sol gelé
mechanical properties
propriété mécanique
compaction
compactage
spellingShingle permafrost
pergélisol
soils
sol
frozen soils
sol gelé
mechanical properties
propriété mécanique
compaction
compactage
Baker, T H (Harry)
Preparation of artificially frozen sand specimens
topic_facet permafrost
pergélisol
soils
sol
frozen soils
sol gelé
mechanical properties
propriété mécanique
compaction
compactage
description Several specimens of artificially frozen sand (ASTM C-109) were prepared to evaluate different testing procedures and techniques used to determine the mechanical properties of frozen soils. Two methods of preparation of fully saturated frozen sand specimens, described by other investigators, were compared. Compaction by a rodding technique and saturation under vacuum produced a uniform degree of compaction and saturation upon freezing. The most critical part of the preparation procedure leading to physical variability between specimens was found to be the time during freezing and machining. This time span must be kept constant to minimize the effects of sublimation. Plusieurs spécimens de sable géle artificiellement (ASTM C- 109) ont été préparés afin d'évaluer différentes méthodes et techniques d'essai utilisées pour déterminer les propriétés mécaniques de sols gelés. Deux méthodes de préparation de spécimens de sable gelé complètement saturé, décrites par d' autres chercheurs, ont été comparées. Le tassement par une technique de pilonnage et par saturation sous vide a produit un degré uniforme de tassement et de saturation lors de la congélation. La partie la plus critique de la méthode de pré paration pouvant mener à une variabilité physique entre les spécimens a été trouvée comme le temps de congélation et d' ajustage. Cette durée doit être maintenue constante afin de diminuer les effets de la sublimation. Peer reviewed: No NRC publication: Yes
format Report
author Baker, T H (Harry)
author_facet Baker, T H (Harry)
author_sort Baker, T H (Harry)
title Preparation of artificially frozen sand specimens
title_short Preparation of artificially frozen sand specimens
title_full Preparation of artificially frozen sand specimens
title_fullStr Preparation of artificially frozen sand specimens
title_full_unstemmed Preparation of artificially frozen sand specimens
title_sort preparation of artificially frozen sand specimens
publisher National Research Council of Canada. Division of Building Research
publishDate 1976
url https://doi.org/10.4224/40000382
https://nrc-publications.canada.ca/eng/view/ft/?id=c3305952-a6f6-456f-8140-cd230f91c4a4
https://nrc-publications.canada.ca/eng/view/object/?id=c3305952-a6f6-456f-8140-cd230f91c4a4
https://nrc-publications.canada.ca/fra/voir/objet/?id=c3305952-a6f6-456f-8140-cd230f91c4a4
genre permafrost
pergélisol
genre_facet permafrost
pergélisol
op_relation issn:0381-4319
Paper (National Research Council of Canada. Division of Building Research); no. DBR-P-682, Publication date: 1976-06
doi:10.4224/40000382
op_rights open access
op_doi https://doi.org/10.4224/40000382
_version_ 1810471602587959296