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Pore-water extraction from unsaturated tuff by triaxial and one-dimensional compression methods, Nevada Test Site, Nevada

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Pore-water extraction from unsaturated tuff by triaxial and one-dimensional compression methods, Nevada Test Site, Nevada; 1994; WRI; 93-4144; Mower, Timothy E.; Higgins, Jerry D.; Yang, In C.; Peters, Charles A.

Summary

Study of the hydrologic system at Yucca Mountain, Nevada, requires the extraction of pore-water samples from welded and nonwelded, unsaturated tuffs. Two compression methods (triaxial compression and one-dimensional compression) were examined to develop a repeatable extraction technique and to investigate the effects of the extraction method on the original pore-fluid composition. A commercially available triaxial cell was modified to collect pore water expelled from tuff cores. The triaxial cell applied a maximum axial stress of 193 MPa and a maximum confining stress of 68 MPa. Results obtained from triaxial compression testing indicated that pore-water samples could be obtained from nonwelded tuff cores that had initial moisture [...]

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Type Scheme Key
local-index unknown wri934144
local-pk unknown 25709
series unknown Water-Resources Investigations Report

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journalWater-Resources Investigations Report
edition-
languageENGLISH
citationTypeReport

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