Look up: pozzolana

1. 
   Pozzolana
   Pozzolana or pozzuolana is a sort of mortar produced in Italy and formed of volcanic ashes. When mixed with a small portion of lime it quickly hardens even under water. This singular property rendered it very useful in the erection of moles and other buildings in maritime situations.
   Found on http://www.encyclo.co.uk/nol.php
   
   
2. 
   pozzolana
   The volcanic ash (as a sand) used in the production of waterproof cement
   Found on http://myweb.tiscali.co.uk/temetfutue/gl
   
   
3. 
   Pozzolana
   a volcanic ash originally found near Pozzuoli near Naples which is used as an additive in mortars to achieve an hydraulic set.
   Found on http://www.trp.dundee.ac.uk/research/glo
   
   
4. 
   Pozzolana
   `Pozzolana`, also known as pozzolanic ash, is a fine, sandy volcanic ash, originally discovered and dug in Italy at Pozzuoli in the region around Vesuvius, but later at a number of other sites. Vitruvius speaks of four types of pozzolana. It is found in all the volcanic areas of Italy in various colours: black, white, grey and red. Finely ground and mixed with lime it creates a hydraulic cement and can be used to make a strong mortar that will a...
   Found on http://en.wikipedia.org/wiki/Pozzolana
   
   
5. 
   Pozzolana
   • (n.) Volcanic ashes from Pozzuoli, in Italy, used in the manufacture of a kind of mortar which hardens under water.
   Found on http://thinkexist.com/dictionary/meaning
   
   
6. 
   pozzolana
   hydraulic cement discovered by the Romans and still used in some countries, made by grinding pozzolana (a type of slag that may be either ... [8 related articles]
   Found on http://www.britannica.com/eb/a-z/p/104