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Re: Cavity Treatment

Subject: Re: Cavity Treatment
From: Scott Cullen
Date: Feb 29 2012 21:25:53

  ----- Original Message ----- 
  From: Simon Pryce Arboriculture 
  To: UK Tree Care 
  Sent: Wednesday, February 29, 2012 4:13 PM
  Subject: Re: Cavity Treatment


  I think the idea is to use them in heavily decayed trunks with very thin 
  walls of sound wood, so a solid mass in the middle prevents it going 
  oval and buckling [hosepipe failure].  Gabions would be a good choice as 
  they are solid, but permable to air and water and reasonably vandal proof.

  Most of the ones I've seen are big cubes, but I guess it wouldn't be too 
  difficult to get the cage custom built and possibly fill it on site.

  SC Yes Simon I think you're right.  The ones you see alomg the highway or 
on stream banks are generally rectalinear (although I've never measured to 
see if there is an engineered batter or taper in them).  Nor have I ever 
watch installation to see if they are filled on site or pre-fabbed.  But I'd 
think to fill a tree the gabion would have to be site filled.  I'd never 
thought of it but I think it would have to be top filled which would require 
an existing or newly cut opening in the stem above the top of the gabion. 


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