Letter Re: Rourke on The Stealth Survival Retreat

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Beware of a second pouring to thicken a concrete shelter lid for added fallout protection. It is essentially a dead load that causes the lid to get closer to it’s stress limit. Thickness adds strength only when it is part of a single pouring, with all the needed rebar integrated. I would advise consulting an engineer before adding unforeseen load to a concrete span. - Mr. Bravo

JWR Replies: Thanks for mentioning that! I have just added a proviso to my original post.

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This page contains a single entry by Jim Rawles published on December 10, 2005 4:13 PM.

Letter Re: New FINCEN Regulation on Precious Metals/Gemstones Transaction Reporting was the previous entry in this blog.

Letter Re: More on "Harder Homes and Gardens" is the next entry in this blog.

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