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Re: [TowerTalk] Welding rebar cages

Subject: Re: [TowerTalk] Welding rebar cages
From: Nick Pair <>
Date: Fri, 7 Jul 2006 09:57:55 -0700 (PDT)
List-post: <>
One word on welding of rebar cages instead of tying together with tywire, DON'T.
  It used to be somewhat popular to weld some portions of rebar installations 
industrially about thirty years ago, but the people who test those things found 
that the composition of the bars themselves was such that welding seriously 
weakened them due to brittleness in areas next to weld. Same thing applies to 
ladders made up of rebar rungs with 2x 1/4 flat bar rails. The welds were 
allowing the rungs to break just inside of the welds.
  So any welding in these area would be against the prime directive!

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