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Fritted Glass Bead Materials as Tensiometers and Tension Plates
Author(s) -
Chow T.L.
Publication year - 1977
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/sssaj1977.03615995004100010010x
Subject(s) - frit , tensiometer (surface tension) , bead , materials science , composite material , hydraulic conductivity , tension (geology) , surface tension , thermodynamics , environmental science , soil water , physics , ultimate tensile strength , soil science
A maximum temperature of 655°C which was reached in six steps with approximately 100°C/step/hour for 90 min was used to frit glass beads. Tensiometer or tension plate with desired dimension and operational characteristics can be constructed from the product. Uniformity tests on the product indicate negligible horizontal temperature variations during the fritting process and slow heat dissipation during the cooling phase tends to limit its thickness. Tests on the particle size distributions suggest that glass beads graded to very narrow distribution are required to produce fritted material with both the maximum saturated hydraulic conductivity and maximum air‐entry value.