Green Cement?

Geopolymers (coined by joseph davidovits) and the broader alkali-activated cements are possible alternatives to cement. Check out this video where they reproduce the pyramid blocks.

In New York and Brooklyn a lot of cement gets used to make concrete cellar floors. As a green contractor we are always looking for an alternative. We have made earthen floors which work great.

We are looking into alkali activated cement. It looks very promising.

About the author: Gennaro Brooks-Church

3 comments to “Green Cement?”

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  1. mom - May 2, 2011 at 3:17 pm

    Looks like it is coming along well, but that is a big job. Hey, who is that handsome guy in the yellowish/tan shirt.

  2. John - April 18, 2011 at 8:46 pm

    Gennaro, have a look at this interesting look at the use of “hempcrete” in Ireland.

    http://www.youtube.com/watch?v=FcctSvVFheA

  3. Gennaro Brooks-Church - April 17, 2011 at 6:34 pm

    There are several pages discussing various kinds of cement in “Heat: How to Stop the Planet from Burning”, by George Monbiot. He mentions geopolymer cement, as well as pozzolan cements used by the Romans. A website reference he gives in the notes is the following: http://www.romanconcrete.com/Article1Secrets.pdf I hope it is of interest to you.

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