Setting accelerator for sprayed concrete

Details Setting accelerator for sprayed concrete Setting accelerator for sprayed concrete

C - Chemistry, Metallurgy

04

B

C04B 22/14 (2006.01)

Patent

CA 2575146

An accelerating admixture for concrete, containing a liquid mixture being an aqueous solution or an aqueous dispersion, wherein a) the liquid mixture contains 13 to 43 weight % dissolved aluminium sulfate, b) the liquid mixture contains less than 1 weight % dissolved carboxylic acid, c) the liquid mixture contains at least 31 weight % water, d) the molar ratio of dissolved aluminium to dissolved sulfate in the liquid mixture is from 0.5 to 10Ø

L'invention concerne un produit d'accélération de durcissement pour béton, contenant un mélange liquide qui est soit une solution aqueuse ou une dispersion aqueuse. a) le mélange liquide contient entre 13 et 43 % en poids de sulfate d'aluminium dissous; b) le mélange liquide contient moins de 1 % en poids d'acide carboxylique dissous; c) le mélange liquide contient au moins 31 % en poids d'eau; d) le rapport molaire de l'aluminium dissous au sulfate dissous dans le mélange liquide est compris entre 0,5 et 10,0.

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