Measuring and testing – With fluid pressure – Porosity or permeability
Patent
1983-11-17
1986-02-25
Levy, Stewart J.
Measuring and testing
With fluid pressure
Porosity or permeability
73 37, G01N 1508
Patent
active
045719853
ABSTRACT:
A method and apparatus for directly measuring the hydraulic conductivity of porous materials at various degrees of saturation, the invention involves determination of the rate of rotation under dynamic equilibrium of concentric cylinders having a partially saturated porous material disposed in an annular space between the concentric cylinders, the rate of rotation being directly related to the hydraulic conductivity of the material. The hydraulic conductivity of the material can thus be determined without the need for measuring fluid discharge and piezometric head gradient as is necessary in prior art determination of hydraulic conductivity.
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patent: 4200003 (1980-04-01), Miller
Hollis Darrell E.
Levy Stewart J.
The United States Army Corps of Engineers as represented by the
Williams Hezron E.
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