Nov 9, 2012
Interesting idea, which perhaps has some parallels with the proposal entitled "Smarter Binder Technology for Concrete" at https://www.climatecolab.org/web/guest/plans/-/plans/contestId/15/planId/1000113 (though I'm not a technical expert in this field, so perhaps I am missing some subtle differences). If in fact there are parallels between these two proposals, perhaps the two teams might benefit from working together?
Jul 4, 2013
Reducing the energy needed to produce cement is certainly a laudable idea, and there is mention of using geo-polymers. Though that is not a novel approach, it opens up many possibilities. But the proposal does not give enough detail on how energy requirements and emissions would actually be reduced.