Low density calcium silicate hydrate strength accelerant...

C - Chemistry – Metallurgy – 04 – B

Patent

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Details

C04B 22/06 (2006.01) C04B 14/04 (2006.01) C04B 22/00 (2006.01) C04B 28/02 (2006.01) C04B 28/18 (2006.01)

Patent

CA 2439660

Disclosed are concrete and fiber cement formulations and products comprising low-density calcium silicate hydrate, and methods for producing these formulations and products. The disclosed formulations exhibit accelerated curing times. Other advantages of the disclosed formulations include improved dimensional stability in extruded products, reduced cracking, and reduced wash- out in underwater applications. The products of the disclosed formulation have lower cost of production and faster time to market.

La présente invention concerne des formulations de ciment pour béton et de fibro-ciments et des produits comportant de l'hydrate de silicate de calcium de basse densité, et des procédés de production desdites formulations et produits. Les formulations de l'invention présentent des temps de prise accélérés. D'autres avantages des formulations de l'invention comprennent la stabilité dimensionnelle améliorée dans des produits extrudés, une fissuration réduite et une érosion réduite dans des utilisations sous l'eau. Les articles produits à partir de la formulation de l'invention offrent un meilleur coût de revient et une commercialisation plus rapide. FIG. 1 : 100 SUSPENSION D'AFFINAGE 110 BROYAGE HUMIDE DE SILICE 120 FABRICATION DE BARBOTINE DE CALCIUM/SILICE 130 FORMATION DE MELANGE DE BARBOTINE 140 AJOUT DU RESTE D'INGREDIENTS SECS ET MELANGE 150 AJUSTEMENT FINAL DE CONSISTANCE 160 DECHARGEMENT DU MELANGE

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