Alcohol’s effect on the hydraulic conductivity of consolidated clay |
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Authors: | P Sentenac R J Lynch M D Bolton R N Taylor |
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Institution: | (1) Civil Engineering Department, Strathclyde University, Glasgow, G4ONG, UK;(2) Geotechnical and Environmental Engineering Group, Cambridge University CUED Engineering Department, Trumpington Street, Cambridge, CB2 1PZ, UK;(3) Geotechnical Engineering Research Centre, City University, Northampton Square, London, EC1V0HB, UK |
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Abstract: | Centrifuge tests were carried out to determine the effect of different alcohols and one glycol on a thin consolidated disc
of clay. The evolution of changes in the clay hydraulic conductivity with time was investigated and other structural changes
due to chemical attack were monitored. The findings presented here demonstrate that the hydraulic conductivity of the clay
appear to be generally related to the polarity of the chemicals and the dielectric constant, with the exception of butanol.
In the case of butanol at low flow rate and low stress level, the action of the chemical caused the clay to crack, with a
consequent large increase in flow. This effect on the clay hydraulic conductivity could be used for improving pollution remediation
especially when alcohols are associated with gasoline. |
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Keywords: | Alcohols Consolidated clay Permeability Gasoline remediation |
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