Cementitious compositions and their uses

Details Cementitious compositions and their uses Cementitious compositions and their uses

C - Chemistry, Metallurgy

04

B

C04B 11/30 (2006.01) C04B 14/10 (2006.01) C04B 28/14 (2006.01)

Patent

CA 2225092

A composition suitable for adding to water to produce a water-resistant hydraulic solid which composition comprises components (a), (b) and (c) as follows: (a) calcium sulphate hemihydrate, (b) portland cement; (c) calcined clay having a pozzolamic activity; wherein the percentages by weight of components (a), (b) and (c) in the said composition are in the respective ranges: (a) from 20% to 98%; (b) from 1% to 5%; (c) from 1% to 30%; the percentages of components (a), and (b) and (c) adding to 100% in the three component composition.

Composition pouvant être ajoutée à l'eau pour produire un solide hydraulique résistant à l'eau, et qui renferme les constituants a), b) et c), à savoir : a) du sulface de calcium semihydraté; b) du ciment de portland; c) de l'argile calcinée avec des caractéristiques pouzzolaniques. Les pourcentages en poids des constituants a), b) et c) dans cette composition s'établissent comme suit : a) de 20 % à 98 %; b) de 1 % à 5 %; c) de 1 % à 30 %; les pourcentages des constituants a), b) et c) totalisent 100 % dans la composition.

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