|Dennis M 1064
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Glenn NK wrote:
As as structural engineer, I have used carbon fibre tape to reinforce concrete bridges to increase their load-carrying capacity. For a given cross sectional area it's stronger than steel, and has a much high modulus of elasticity. Also have used it to reinforce concrete foundations when the builders didn't use enough steel rebar.
An aluminum tube can be tougher than CF when it is dented - the aluminum won't lose as much strength as CF because is it ductile.
I too carry a heavy lens on the tripod over my shoulder.
A little off topic (ok a lot) but now that I have finally bumped in to someone who might know...
They just rebuilt a few of our over passes on the turn pike, like complete remove and reinstall. The bridge ends, usually concrete forms and bank sand fill or similar, was filled with what looked like giant blocks of styro-foam. Do you have any idea what it really is? the whole area under the road that abuts the bridge span is layers of it.
Ok, back to the subject. Sorry.