Wild & Crazy Facts
You’re probably thinking that you’d have to be a little nuts to think there’s anything wild or crazy about concrete. Or you just have to be in the concrete business! Concrete boats, concrete speakers, concrete houses and concrete shoes. I can’t be the only “cement head” in the world.
 
It’s one on the oldest manufactured construction materials in the world, and still used in some of the worlds most advanced structures.
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French Professor Joseph Davidovits is pretty sure the pyramids are made out of concrete. I think he’s probably right. Check it out at: www.geopolymer.org/archaeo4.html
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There’s even a Timeline of Concrete showing uses dating back to the
Great Wall in 3000 BC:
http://www.auburn.edu/academic/architecture/bsc/classes/bsc314/timeline/timeline.htm
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Our own C.N. Tower in Toronto, the world's tallest freestanding structure, is a very tall skinny pole, with a restaurant on top. It sways like a car antenna, and yes, it’s made of concrete.
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And if we ever choose to build a colony on the moon, we won’t make it out of PVC pipe and Plexiglas like in 2001 (the movie – remember?) we’ll make it out of… (wait for it) Concrete! There’s lots of rock and sand there already and they’ve even found a little water. All we have to bring is cement and a wheelbarrow
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Cement powder is so fine it will past though a sieve that water will not! Silica Fume, which is an additive we use to increase density and strength is 100 times finer than cement. (about the consistency of cigarette smoke)
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Universities all over the world design and compete with concrete canoes. (easy to patch - hard to portage)
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Concrete speakers provide extremely low resonance. (also low instances of theft)
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