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Book Effects of Freeze thaw on the Hydraulic Conductivity and Macrostructure of Compacted Clay Soil Used in Landfill Cover Material in Utah

Download or read book Effects of Freeze thaw on the Hydraulic Conductivity and Macrostructure of Compacted Clay Soil Used in Landfill Cover Material in Utah written by Issa A. Sheikh Hamud and published by . This book was released on 1994 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Masters Theses in the Pure and Applied Sciences

Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this jOint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 40 (thesis year 1995) a total of 10,746 thesis titles from 19 Canadian and 144 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 40 reports theses submitted in 1995, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.

Book Freeze thaw Effects on the Hydraulic Conductivity of Compacted Clays

Download or read book Freeze thaw Effects on the Hydraulic Conductivity of Compacted Clays written by Christine M. LaPlante and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The effect of freezing and thawing on the hydraulic conductivity and microstructure of a compacted fine grained soil

Download or read book The effect of freezing and thawing on the hydraulic conductivity and microstructure of a compacted fine grained soil written by Woon-Hyun Kim and published by . This book was released on 1991 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effect of Freeze thaw on the Hydraulic Conductivity of Barrier Materials

Download or read book Effect of Freeze thaw on the Hydraulic Conductivity of Barrier Materials written by Jason Frederic Kraus and published by . This book was released on 1994 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Laboratory Testing to Evaluate Changes in Hydraulic Conductivity of Compacted Clays Caused by Freeze Thaw

Download or read book Laboratory Testing to Evaluate Changes in Hydraulic Conductivity of Compacted Clays Caused by Freeze Thaw written by CH. Benson and published by . This book was released on 1994 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several laboratory studies have shown that the hydraulic conductivity of compacted clay may increase up to three orders of magnitude when subjected to freeze-thaw. In this paper, methods to freeze and thaw specimens of compacted clay are reviewed and compared. Methods to measure the hydraulic conductivity of the specimens are also reviewed. Only naturally formed clay soils are considered; soil-bentonite mixtures and other amended soils are not included.

Book The Effects of Freeze Thaw Cycles on the Permeability of Three Compacted Soils

Download or read book The Effects of Freeze Thaw Cycles on the Permeability of Three Compacted Soils written by JJ. Bowders and published by . This book was released on 1994 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three soils: a processed kaolinite, a pulverized shale used as a liner material, and a residual clay soil used as a liner material were compacted using the standard Proctor method and permeated with distilled, deionized water in flexible-wall permeameters. Specimens were subjected to freezing and thawing in an environmental chamber. After being thawed the specimens were again permeated in the flexible-wall permeameters. The freeze/thaw process increased the permeability in all three soils. The kaolinite and residual clay soil showed increases in permeability ranging from one to two orders of magnitude above the pre-freeze/thaw values. The permeability of the pulverized shale increased by less than a factor of three. Post-freeze/thaw permeation at progressively higher effective confining stresses reversed the increase in permeability and resulted in decreasing the permeability from the post-freeze/thaw values. This reduction in permeability was greatest for the kaolinite and the residual clay (one to two orders of magnitude); it was the least for the pulverized shale (maximum of a factor of about two). The results of this study indicated that the magnitude of the change in permeability of specimens subjected to freeze/thaw increased with increasing plasticity of the soils. These findings are in agreement with previous literature that freezing and thawing do increase the permeability of a soil but that the increase can be reduced when effective stress on the soil is increased.

Book Ground Freezing Effects on Soil Erosion of Army Training Lands Part 1 Initial Test Results

Download or read book Ground Freezing Effects on Soil Erosion of Army Training Lands Part 1 Initial Test Results written by and published by DIANE Publishing. This book was released on 1997 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Military maneuvers damage vegetation and compact and rut soils on training lands, thereby increasing the likelihood of hillslope runoff and soil erosion. Soil Freeze-Thaw (FT) processes can change the hydraulic geometry and roughness of vehicular ruts and reduce soil compaction, which often partially restores the water infiltration rate that existed before compaction. The efficiency of these FT-induced 'repairs' depends on soil water content and FT intensity. Initial tests showed that: (1) an experimental soil bin designed and constructed for rut experiments allows acceptable simulation of field soil FT, and (2) the hydraulic geometry of a rectangular rill in a fine silt soil with an initial volumetric water content of 36% changes dramatically due to rill sideslope slumping during thaw. Future experiments will compare differences in the response of natural rills and vehicular ruts to FT-induced soil failure, and investigate the effects of FT on soil erodibility and the influences of snow cover on soil erosion processes in the spring.

Book Ground Freezing Effects on Soil Erosion of Army Training Lands

Download or read book Ground Freezing Effects on Soil Erosion of Army Training Lands written by and published by . This book was released on 1998 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two areas were monitored at the Yakima Training Center (YTC) in central Washington to measure changes in M1A2 Abrams (M1) tank-rut surface geometry, and in- and out-of-rut saturated hydraulic conductivity (Ksubfs), soil penetration resistance (SPR), and bulk density over the 1995-1996 winter. Profile meter data show that rut cross-sectional profiles smoothed significantly and that turning ruts did so more than straight ruts. Rut edges were zones of erosion and sidewall bases were zones of deposition. Ksubfs values were similar in and out of ruts formed on soil with 0-5 percent water by volume, but were lower in ruts formed on soil with about 15 percent water. Mean SPR was similar in and out of ruts from 0- to 5-cm depth, increased to 2 MPa outside ruts and 4 MPa inside ruts at 10- to 15-cm depth, and decreased by 10-38 percent outside ruts and by 39-48% inside ruts at the 30-cm depth. Soil bulk density was similar in and out of ruts from 0- to 2.5-cm depth, and below 2.5 cm it was generally higher in ruts formed on moist soil, with highest values between 10- and 20-cm depth. Conversely, density in ruts formed on dry soil was similar to out-of-rut density at all depths. This information is important for determining impacts of tank ruts on water infiltration and soil erosion, and for modifying the Revised Universal Soil Loss Equation (RUSLE) and the Water Erosion Prediction Project (WEPP) models to more accurately predict soil losses on Army training lands.

Book Standard Test Method for Determining the Effect of Freeze Thaw on Hydraulic Conductivity of Compacted or Intact Soil Specimens Using a Flexible Wall Permeameter

Download or read book Standard Test Method for Determining the Effect of Freeze Thaw on Hydraulic Conductivity of Compacted or Intact Soil Specimens Using a Flexible Wall Permeameter written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: