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What is made of pumice?

Updated: 8/19/2019
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12y ago

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Pumice is widely used to make lightweight concrete or insulative low-density breeze blocks. When used as an additive for cement, a fine-grained version of pumice called pozzolan is mixed with lime to form a light-weight, smooth, plaster-like concrete. This form of concrete was used as far back as Roman times. Roman engineers used it to build the huge dome of the Pantheon and as construction material for many aqueducts.

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12y ago
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6y ago

It is made of molten gassy, glassy lava that has (usually) erupted under water.

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Q: What is made of pumice?
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