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RE: Decoupling of anchor bolts

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I like to grease the anchor rod and wrap it in tape.  It has worked for me for over 20 years. 

Harold Sprague

Subject: Decoupling of anchor bolts
Date: Sat, 19 Jan 2008 20:01:12 +0530
From: shimjith.m(--nospam--at)
To: seaint(--nospam--at)

   this is regarding the decoupling of anchor bolts to apply pretension.I heard that bitumen coatings are provided for this purpose.It in practise it creating problems like concrete getting bonded to bolt by braking the bitumen my question is what is the best way which is practically feasible too to decouple bolt from concrete so that we are assured of exact decoupling length before applying pretension..thanks in advance

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