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Document Type

Thesis - University Access Only

Award Date


Degree Name

Master of Science (MS)


Civil Engineering

First Advisor

Vernon R. Schaefer


The scope of this study was to determine the permeability of various bentonite and bentonite/ additive combinations to identify an optimal borehole sealant. An initial phase of the project which showed bentonite without the addition of additives produced low permeability values; the thermal conductivity values were not acceptable. Additives were then selected to increase the thermal conductivity of the mixtures while maintaining low permeability. This project was part of a larger project investigating the thermal performance of various bentonite grout mixtures.

Library of Congress Subject Headings

Bentonite -- Permeability
Bentonite -- Thermal properties
Sealing compounds




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