A modified pressure plate apparatus
Author
Leong, Eng Choon
Tripathy, Sudhiranjan
Rahardjo, Harianto
Date of Issue
2004School
School of Civil and Environmental Engineering
Version
Accepted version
Abstract
Soil-water characteristic curves of soils can be measured in the laboratory using conventional testing apparatus such as the pressure plate. This paper describes a modified pressure plate apparatus using a commercially available high air entry ceramic plate. The modified pressure plate apparatus has several advantages over the conventional pressure plate apparatus: It can be used to determine both the drying and wetting soil-water characteristic curves, whereas the conventional pressure plate can usually determine only the drying soil-water characteristic curve; the water reservoir beneath the ceramic plate ensures that the ceramic plate is fully saturated at all times; air appearing in the water reservoir due to air diffusion through the ceramic disk can be flushed out by the cross-flow system during the test without stoppage of the test.
Subject
DRNTU::Engineering::Civil engineering::Geotechnical
Type
Journal Article
Series/Journal Title
Geotechnical testing journal
Rights
© 2004 ASTM
Collections
http://dx.doi.org/10.1520/GTJ11053
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