Gypsum based compositions

Details Gypsum based compositions Gypsum based compositions

C - Chemistry, Metallurgy

04

B

C04B 28/14 (2006.01) C04B 11/024 (2006.01)

Patent

CA 2685768

A gypsum stucco composition comprising the following components finely divided; calcium sulphate hemihydrate in calcined solid beta crystalline form; and in intimate mixture with said finely divided calcium sulphate hemihydrate and mixed therewith no later than calcination to form the hemihydrate, a sulphate salt comprising at least one of ammonium sulphate and aluminium sulphate, in an amount such that when the stucco composition is mixed with water and allowed to set, the resulting set plaster has increased compressive strength, flexural strength and/or E-modulus compared to a set plaster produced from said finely divided calcium sulphate hemihydrate containing no said sulphate salt.

L'invention porte sur une composition de stuc de gypse comprenant les composants suivants finement divisés : sulfate de calcium semi-hydraté dans une forme cristalline bêta solide calcinée et, en mélange intime avec ledit sulfate de calcium semi-hydraté finement divisé et mélangé avec lui pas plus tard que la calcination pour former le semi-hydrate, un sel sulfate comprenant au moins l'un du sulfate d'ammonium et du sulfate d'aluminium, dans une quantité telle que, lorsque la composition de stuc est mélangée avec de l'eau et amenée à subir la prise, le plâtre pris résultant a des propriétés accrues de résistance à la compression, résistance à la flexion et/ou module E par comparaison avec un plâtre pris obtenu à partir dudit sulfate de calcium semi-hydraté finement divisé ne contenant pas ledit sel sulfate.

Affiliated with

Also associated with

Rating

Gypsum based compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gypsum based compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gypsum based compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1933221