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RE: old foundation block deterioration

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A petrographic analysis might be required for a definitive analysis. If you have sulfate problems, the only thing you can do is to create a barrier. If it is freeze-thaw, just use a better block.

Regardless, you will probably have to replace the wall.

Harold Sprague

From: Jim Wilson <wilsonengineers(--nospam--at)>
Reply-To: <seaint(--nospam--at)>
To: seaint(--nospam--at)
Subject: old foundation block deterioration
Date: Thu, 3 Aug 2006 06:23:57 -0700 (PDT)

I'm searching for technical information on deterioration of old cinder(or cement) block foundation walls about 50 years old, but I'm not having much luck searching on the web. The deterioration is so bad in one area of this client's foundation wall that you could literally scoop the deteriorated masonry out of the bottom course with a bare hand.

I also browsed through Brown's foundation book and Newman's renovation book, but came up mostly empty there too.

  Thanks in advance,

  Jim Wilson, PE
  Stroudsburg, PA

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