Very useful to those of us who are working to reduce our carbon emission footprints! I wonder where the largest deposits of the proper volcanic ash are located?
--- In papercreters@yahoogroups.com, "trendawareness" <trendlinesystems@...> wrote:
>
> For all those interested in "greener" concrete or portland, here's a story by Business Week about how ancient and durable Roman mixtures are being re-disocvered.
>
> Notably, these didn't use energy intensive kilns in their production (just volcanos).
>
> Thanks!
>
> http://www.businessweek.com/articles/2013-06-14/ancient-roman-concrete-is-about-to-revolutionize-modern-architecture#r=rss
>
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Monday, July 8, 2013
[papercreters] Re: Back to the future?
