by U.S. Environmental Protection Agency, Hazardous Waste Engineering Research Laboratory in Cincinnati, OH .
Written in English
|Statement||Robert Horton, Michael L. Thompson, and John F. McBride.|
|Contributions||Thompson, Michael L., McBride, John F., Hazardous Waste Engineering Research Laboratory.|
|The Physical Object|
The performance of a compacted soil liner is partly a function of the porosity, where the transport of materials through the liner occurs via the pore space. The project studies the pore spaces of compacted soil materials to estimate the effective porosity, which is the portion of the pore space where the most rapid transport of leachate occurs. Theory was developed to estimate the effective porosity of a compacted soil material based upon a model of its pore size distribution and pore continuity. The effective porosities of compacted till. loess. and paleosol materials are estimated-to be and respectively. These values are 10 to 20% of the total : Robert Horton, Michael L. Thompson, John F. McBride. The determination of the hydraulic conductivity and diffusivity of unsaturated soils, Soil Science. , Konikow, L. F., Predictive accuracy of a . , Determination of effective porosity of soil materials [microform]: project summary / Robert Horton, Michael L. Thompson, and John F. McBride U.S. Environmental Protection Agency, Hazardous Waste Engineering Research Laboratory Cincinnati, OH.
Buy Determination of Effective Porosity of Soil Materials online at best price in India on Snapdeal. Read Determination of Effective Porosity of Soil Materials reviews & author details. Get Free shipping & CoD options across India. While the fibre density is the weight of a given volume of the solid component only (i.e. not containing other materials), the porosity can be calculated as follows using the fabric bulk density and the fibre density: () ϕ (%) = ρ fabric ρ fibre × %. () P (%) = (1 − ϕ) × %. The porosity of a sample is equal to the “areal porosity” provided that pore structure is random. The areal porosity is determined on polished thin sections of a sample. It is often necessary to impregnate the pore with some material such as wax, plastic, color, or wood’s metal in order to make pores more visible and/or distinguishing. Timothy D. Schowalter, in Insect Ecology (Fourth Edition), Soil Structure, Fertility, and Infiltration. Fossorial arthropods alter soil structure by redistributing soil and organic material and increasing soil porosity (J. Anderson, ).Porosity determines the depth to which air and water penetrate the substrate.
Porosity is defined by the American Society for Testing and Materials () as the ratio, usually expressed as a percentage, of the volume of voids of a given soil mass to the total volume of the soil mass. For all practical purposes, ground water fills all void spaces in the saturated zone. Get this from a library! Determination of effective porosity of soil materials: project summary. [Robert Horton; Michael L Thompson; John F McBride; Hazardous Waste Engineering Research Laboratory.]. The effective porosity is a required parameter for the mass flow rate calculations in groundwater hydrogeology. It is also a useful parameter in geotechnical engineering. 68 more reliable and cost-effective in-situ testing methods. Geophysical techniques and in particular 69 soil electrical resistivity measurements, have been used for examining the in-situ porosity 70 (Barnes, et al., , Erchul and Nacci, , Jackson, et al., , Kermabon, et al.,