permeability

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permeability

The measure of a material's ability to transmit liquids.The passage of soil contaminants into groundwater increases as soil permeability increases.On the other hand,in situ remediation—removal or decomposition—of groundwater contamination is easier as permeability increases.For a color map of the United States showing the relative permeability of soils across the country, see the Web site page of the Environmental Protection Agency at www.epa.gov/iwi/1999sept/iv20_usmap.html.

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In summary, the presented method allows to estimate both cold flow and hot flow permeabilities from samples easily prepared from a whole monolith.
In order to validate the experimental approach described above, the saturated water conductivity ([k.sub.w], m/s) of the 5 soils was first estimated from intrinsic permeabilities obtained in the gas flow experiments using Eqn 8:
The hyaloclastites have generally higher porosities and permeabilities than the basaltic lavas and intrusions.
* If permeabilities over 120 are used in synthetic sands, the surface finish of the castings may not be acceptable.
In contrast, deck sections 5 (sprayed) had average permeabilities of 1,397 and 1,977 coulombs for the 0- to 51-mm (0- to 2-in) and 51- to 102-mm (2- to 4-in) sections, respectively.
where [P.sub.b,M], [P.sub.c], and [P.sub.d] are the permeabilities of the blend as calculated by Maxwell's law (Eq.
The unit developed was able to quickly determine permeabilities as low as an equivalent air thickness of [S.sub.D] = 1500 m.
Furnish is only a factor in that different furnishes produce sheets of different permeabilities under the same fabrication processes.
If the objective is to obtain tires with different permeabilities of the innerliner compounds and the same rate of pressure loss (k), then K must be constant.
The foamed plaster process or permeable metalcasting plaster, has been designed to produce mold permeabilities comparable to those obtained in the Antioch process, but without the autoclaving cycle.
The sample suite was chosen so that a wide range of matrix permeabilities and pore sizes were investigated.
The samples with similar velocities and initial permeabilities were selected for further testing to ensure that they are parallel.