Process for the production of an ultra-light mineral foam
AssigneeAmrize Technology Switzerland LLC
InventorSébastien GEORGES
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Abstract
A process for the production of a mineral foam includes (i) separately preparing a slurry of cement and an aqueous foam, wherein the cement slurry includes water (W) and Portland cement (C); (ii) contacting the slurry of cement with the aqueous foam to obtain a slurry of foamed cement; (iii) adding a transition metal salt before, during or after procedure (ii); (iv) casting the slurry of foamed cement and leaving it to set.
Claims19
A method for the production of a mineral foam comprising the following steps:
- (i) separately preparing a cement slurry and an aqueous foam, wherein the cement slurry comprises water (W) and Portland cement (C);
- (ii) contacting the cement slurry with the aqueous foam to obtain a slurry of foamed cement;
- (iii) adding a transition metal salt before, during or after step (ii);
- (iv) casting the slurry of foamed cement and leaving it to set.
A method comprising utilizing a transition metal salt for enhancing the mechanical stability and/or reducing the collapse of a slurry of foamed cement, said slurry of foamed cement being obtained by:
- (i) separately preparing a cement slurry and an aqueous foam, wherein the cement slurry comprises water (W) and Portland cement (C);
- (ii) contacting the cement slurry with the aqueous foam to obtain a slurry of foamed cement;
- (iii) adding the transition metal salt before, during or after step (ii).
Dependencies are inferred from the claim text.