Anyone know concrete mix design?

[PBO]

Rice flour...worked for the Chinese!

[JERRY2KONE]

Well according to the rules you really do not get much leaveway to be creative. It seems the professor has hamstringed you on additives or binders, so you pretty much have to use basic ingredients. From what I read the only variant is what precentage of each of the three parts you use in order to come up with the right consistancy for the poor and that all three blocks be poured at the same time. Kind of sucks if you ask me. If it were me I would probably get in touch with some of the pro's and ask for advice directly from one of the biggest and best concrete suppliers. Talk with someone in the know about special concrete mixes.

I have seen some pretty tough concrete in my day, but exactly how they managed to get it that way is pretty much a mystery. Hydraulic cement is pretty tough stuff, but I do not know if that would disqualify you considering the rules. It will be kind of interesting to hear how your team does and exactly what the winning mix turns out to be. Please share the results as we always enjoy learning something new from this forum. Good luck with that.