03 00 00 Concrete

03 00 00 Concrete

Concrete

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Concrete in various forms can be dated back to 5600 BCE, where in Serbia the remains of a hut were found with a floor made of a mixture of red lime, sand, and gravel. In the Roman Empire, a concrete made from quicklime, pozzolanic ash/pozzolana, and an pumice aggregate was used. It was very similar to the modern portland cement concrete which was developed in the 1840’s and is currently in use today.