[TowerTalk] Jackhammer removal of tower base difficulty?

[Charlie Gallo]

On 11/2/2011 Rick Karlquist wrote:

...snip...

> In all three cases, the technique used was to get a
> very low paid person to spend an entire day with a cheap
> electric jack hammer and shave little pieces off of the
> concrete.  Very labor intensive.

...snip...

One way that works well believe it or not are the "chemical demolition" compounds (if I remember right, they are basically bentonite clay) - one trade name is dexpan

You drill a series of holes, put the chemicals in, add water, and wait, a few hours later, you come back to find cracked concrete - the issue is of course the rebar, which can complicate things





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73 de KG2V - Charles Gallo
Quality Custom Machine-shop work for the radio amateur (sm)