"Green cement": process in which CO2 doesn't end up in atmosphere

[Auggie]

SAN FRANCISCO CHRONICLE: 9-2-08

Back when Stanford Professor Brent Constantz was 27 he created a high-tech cement that revolutionized bone fracture repair in hospitals worldwide. People who might have died from the complications of breaking their hips lived. Fractured wrists became good as new.

Now, 22 years later, he wants to repair the world.

Constantz says he has invented a green cement that could eliminate the huge amounts of carbon dioxide spewed into the atmosphere by the manufacturers of the everyday cement used in concrete for buildings, roadways and bridges.

His vision of eliminating a large source of the world's greenhouse CO{-2} has gained traction with both investors and environmentalists.

Link: http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2008/09/02/MNGD12936I.DTL&hw=cement&sn=001&sc=1000

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Sounds like it still requires a lot of heat generated by -- fossil fuels.

[hunter]

1. Very interesting!

I've been daydreaming recently about cements manufactured by electrochemical processes rather than fossil fuel heat.

And there's this too, about ancient Egyptian cements:

http://www.livescience.com/history/070518_bts_barsoum_pyramids.html