vacuum concrete

vacuum concrete
noun
: concrete that has had a vacuum applied through special mats, pads, or forms shortly after placement for the purpose of removing a portion of the mixing water not needed for the hydration of the cement

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concrete from which excess moisture and air are sucked to quicken hardening and increase strength.

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vacuum concrete noun
Concrete enclosed in special shuttering which enables suction to be applied to remove excess water
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Main Entry:vacuum

Useful english dictionary. 2012.

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