[brainanator]

Yup, I'll come back and post pictures of the event and roughly what the mix that won was.
Pretty sure the rice flour would be considered a binder PBO, but thanks for the input. Interesting really.

I think I have a pretty good plan outlined already. I don't expect the other students to do well either :p. Pretty sure the project is just to get us thinking on alternative concrete mixes and the theory behind them.