Setting-retarder and its application to concrete, mortars and/or

Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing

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106808, C04B 2430, C04B 2412

Patent

active

059762420

ABSTRACT:
A hydraulic-cement setting retarder included in concrete, mortars, or grouts to control setting time as a function of the retarder dosage. Specifically, the retarder is a cyclic amino resin of formula (I): ##STR1## where (a) R1 is a hydrogen atom, a hydroxymethal radial or a group of formula (II)

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Bojadjieva et al., "Investigation of the Influence of Some Plasticizers of Gypsum-Free Cement Paste," 1995, pp. 685-689.
Chemical Abstracts No. 125703r, vol. 74, No. 23, Jun. 7, 1971, US, p. 478.
Bojadjieva et al., Cement and Concrete Research, vol. 25,No. 4pp. 685-688, 1995.

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