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Old 02-10-15, 07:01 AM   #19
AC_Hacker
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Quote:
Originally Posted by ecomodded View Post
Aluminum wire or bits and pieces would avoid that issue...
I was also stupid enough to think that would work too.

I used aluminum milling swarf.

Millions of tiny insulating bubbles... concrete swelling up to about 1.25 its former size.

Maybe you should start experimenting with your ideas and let us know what you discover.

-AC
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