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Determining the maximum density of sands by pluviation

Determining the maximum density of sands by pluviation
Determining the maximum density of sands by pluviation
Experiments have been carried out to find the maximum dry density taken up by sands during pluviation. These experiments were facilitated by use of a flow divider that permitted very low depositional intensities. It was found that the maximum dry density occurred at an optimum pluviation time. Careful observation of the pluviating sand reveals that compaction takes place within an “energetic layer” of 3 to 4 grains in thickness and that maximum dry density requires the full and continuous development of this layer. Further experiments were conducted to compare simple pouring without diffuser meshes with pluviation: it is shown that at very slow rates of pour, pouring gives the same density as pluviation.


maximum dry density, pluviation, pouring, depositional intensity, compaction, sands
0149-6115
324-328
Cresswell, A
4f6e673a-fa6a-482f-83b4-578c25127d42
Brown, R.
b9108870-6092-4963-b323-be7254c71976
Barton, Max
eea85a67-8def-49a1-a48c-f332310388d9
Cresswell, A
4f6e673a-fa6a-482f-83b4-578c25127d42
Brown, R.
b9108870-6092-4963-b323-be7254c71976
Barton, Max
eea85a67-8def-49a1-a48c-f332310388d9

Cresswell, A, Brown, R. and Barton, Max (1999) Determining the maximum density of sands by pluviation. Geotechnical Testing Journal, 22 (4), 324-328. (doi:10.1520/GTJ11245J).

Record type: Article

Abstract

Experiments have been carried out to find the maximum dry density taken up by sands during pluviation. These experiments were facilitated by use of a flow divider that permitted very low depositional intensities. It was found that the maximum dry density occurred at an optimum pluviation time. Careful observation of the pluviating sand reveals that compaction takes place within an “energetic layer” of 3 to 4 grains in thickness and that maximum dry density requires the full and continuous development of this layer. Further experiments were conducted to compare simple pouring without diffuser meshes with pluviation: it is shown that at very slow rates of pour, pouring gives the same density as pluviation.


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More information

Published date: December 1999
Keywords: maximum dry density, pluviation, pouring, depositional intensity, compaction, sands
Organisations: Civil Engineering & the Environment

Identifiers

Local EPrints ID: 75703
URI: http://eprints.soton.ac.uk/id/eprint/75703
ISSN: 0149-6115
PURE UUID: 4b3170df-8113-4736-bf87-9da48b47de14

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 27 Mar 2019 17:31

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