公开(公告)号：US20170158568A1

公开(公告)日：2017-06-08

申请号：US15316433

申请日：2015-06-04

Applicant: LAFARGE

Inventor： Hélène LOMBOIS-BURGER ,  Christian BLACHIER ,  Sylvain DUCHAND ,  Cédric ROY

IPC: C04B38/10 ,  C04B28/14 ,  C04B28/04

CPC classification number: C04B38/106 ,  C04B28/02 ,  C04B28/04 ,  C04B28/14 ,  C04B2111/00198 ,  C04B22/002 ,  C04B40/0028

Abstract: A method for producing a mineral foam includes: (i) independently preparing a cement slurry and an aqueous foam, the cement slurry being prepared by mixing water E and cement C, the cement C including a soluble equivalent quantity x of Na2O, x being expressed by weight for 100 parts cement, the slurry having a ratio x/(E/C) less than or equal to 1.75, E/C being expressed by weight, and the particles of cement C having a size distribution such that the particle size distribution ratio dmax(h/2)/dmin(h/2) is between 5 and 25; (ii) bringing the cement slurry into contact with the aqueous foam in order to obtain a foamed cement slurry; and (iii) shaping the foamed cement slurry obtained in step (ii) and allowing setting to take place.