http://www.thenewsstar.com/article/20091005/NEWS01/910050309
Some research out of Louisiana Tech on Geopolymer Concrete (GPC) which is made using fly ash and is being developed as a substitute for Portland cement. They say GPC has ” greater resistance to corrosion, more fire resistance, greater strength and less shrinkage” although I haven’t seen any numbers.
They say it’s more expensive, but I don’t know how considering you could probably get fly ash dirt cheap since it’s just a by-product that coal plants need to dump anyway.
Interesting, though.
Here is another link to a similar news story.
http://www.gizmag.com/green-geopolymer-concrete-technology/13016/
Also some neat concrete stories at the bottom of the page.
i_is_j_smith wrote:
They say it’s more expensive, but I don’t know how considering you could probably get fly ash dirt cheap since it’s just a by-product that coal plants need to dump anyway.
Cement requires a lof of energy to produce. Energy is probably a major part of the cost..
http://www.geopolymer.org/applications/geopolymer-cement/2
Highly “User UNfriendly”… As a highly corrosive alkali, it may not be suitable for reiforced structural use…
It’s not even new technology. It’s been used for over half a century. La.Tech. has a newer formula, but it’s not “new.”
J.L.-Frusha 3 years, 4 months ago.
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