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<blockquote data-quote="jdc753" data-source="post: 3563432" data-attributes="member: 572078">Could always go for some super light weight stuff and use fiberblass strands and fiberglass or plastic reinforcing grid with about 1/4&quot; openings. Only problem would be large flat panels. Concrete is good in compression but not tension so when you get larger flat ares flex will be easier and that is what will crack or break the concrete, but with the right amount of reinforcement you should be good. Also look into latex for the mix as well this will add some more tensile strength to the concrete.Can make some crazy stuff out of concrete, Check out <a href="http://www.concretecanoe.org" target="_blank">http://www.concretecanoe.org</a> its a competition held every year that I participated in a few times with school. Made a concrete mix that was actually light enough to float in water, got myself a softball sized ball of it that will just float, kinda cool stuff.</blockquote>

[QUOTE="jdc753, post: 3563432, member: 572078"] Could always go for some super light weight stuff and use fiberblass strands and fiberglass or plastic reinforcing grid with about 1/4" openings. Only problem would be large flat panels. Concrete is good in compression but not tension so when you get larger flat ares flex will be easier and that is what will crack or break the concrete, but with the right amount of reinforcement you should be good. Also look into latex for the mix as well this will add some more tensile strength to the concrete. Can make some crazy stuff out of concrete, Check out [URL="http://www.concretecanoe.org"]http://www.concretecanoe.org[/URL] its a competition held every year that I participated in a few times with school. Made a concrete mix that was actually light enough to float in water, got myself a softball sized ball of it that will just float, kinda cool stuff. [/QUOTE]

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