| 1. | The chemical composition of pozzolana is variable and reflects the regional type of volcanism.
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| 2. | Pozzolana makes the concrete more resistant to salt water than modern-day concrete.
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| 3. | Stones were attached with the use of pozzolana.
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| 4. | CaO and alkali contents are usually modest but can vary substantially from pozzolana to pozzolana.
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| 5. | CaO and alkali contents are usually modest but can vary substantially from pozzolana to pozzolana.
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| 6. | The buildings are constructed in travertine, brick, lime, pozzolana, and tufa.
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| 7. | Italy is one of the world's leading producers of pumice, pozzolana, and feldspar.
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| 8. | The barges were ballasted with 0.5 meters of pozzolana concrete and floated out to their position.
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| 9. | Volcanic dusts, called pozzolana or " pit sand ", were favored where they could be obtained.
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| 10. | Mineral resources include salt, pozzolana ( a volcanic rock used in cement production ), and limestone.
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