Science Fair Project Encyclopedia
Pozzolanic ash
Pozzolanic ash is a siliceous and aluminous material which reacts with calcium hydroxide in the presence of water to form compounds possessing cementitious properties. This allowed it to be used in the Roman Empire to make cement. Pozzolanic ash occurs naturally in volcanic deposits from Pozzuoli and Naples.
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details


