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Controlled Release of Chemical Admixtures in Concrete

Summary

A controlled release formulation for a cement-based composition can be produced by intercalating an admixture (e.g. accelerator, set retarder, superplasticizer) into a layered inorganic material (e.g. layered double hydroxide) to improve workability, especially in respect of slump-loss characteristics.

Patent

7,879,146 (USA), 2,554,347 (Canada)

Status

Available for licensing.

Contact

Enzo Gardin
(613) 991-2987
Enzo.Gardin@nrc-cnrc.gc.ca

Related Information

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