Retempering definitions

Retempering

To moisten mortar and re-mix after original mixing, to the proper consistency for use.
Found on http://www.selectstone.com/architectural-resources/stone-glossary/

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Retempering

The addition of water and remixing of concrete which has started to stiffen: usually not allowed as it may affect the ultimate strength.
Found on https://www.encyclo.co.uk/local/21066

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