Thread: Advice on building an observatory
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Old 29-01-2010, 05:13 PM
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bert (Brett)
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Join Date: Mar 2008
Location: Bathurst
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Paul, sure mass helps. If you used 40 tonnes of concrete you would have ended up with a stabler pier. Design is the key, not brute mass.

Some interesting reading on pier design. http://www.cloudynights.com/item.php?item_id=1275

Brett
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