concrete retarder

concrete retarder

[′käŋ‚krēt ri′tärd·ər]
(materials)
A material added to concrete that decreases the hydration rate of cement, thereby increasing the setting time and decreasing the strengthening rate during the early age.

concrete retarder

A material added to concrete to increase its setting time by decreasing the rate at which hydration takes place.
References in periodicals archive ?
A concrete retarder was used to etch/texture and expose the aggregate/glass finish.
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