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Posted to alt.home.repair
Wayne Whitney
 
Posts: n/a
Default Advice on rotary hammer and foundation drilling

On 2006-04-13, BobK207 wrote:

With chemical anchors you drill down deep into the meat of the existing
foooting & improve their performance by de-bonding the top few inches
of the rod


Can you explain that last part, the de-bonding?

Thanks, Wayne