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[SEAOC] Re: [SEAOC] Geosynthetics

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On Tue, 1 Oct 1996, Jon Woods wrote:

>         I am doing a technical paper on geosynthetics and am wondering if
> anyone knew what the material 'bentonite' is which seems to be used in
> geosynthetic clay liners?

Jon,
Bentonite is a highly expansive clay. ~10 to 1 volume increase. When used 
in waterproofing products, it infiltrates cracks with the moisture, 
swells up, and prevents further infiltration.
Bob

.    .    .   .   .  .  .  .  . . . . . ...........................
Bob Shilling, SE             Berkeley, CA          shilling(--nospam--at)emf.net
KK6QQ         				                   MSA S-10
'91 R100 "Toronado"                                       DoD# 1195
      "This alligator walks into a bar and ..."   Horizon Kent

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