US 11,884,592 B2
Hydraulic composition for grout
Vanessa Kocaba, Creteil (FR); and Sandra Darguy, Toulouse (FR)
Assigned to CHRYSO, Issy les Moulineaux (FR)
Appl. No. 16/489,191
Filed by CHRYSO, Issy les Moulineaux (FR)
PCT Filed Feb. 28, 2018, PCT No. PCT/EP2018/054899
§ 371(c)(1), (2) Date Aug. 27, 2019,
PCT Pub. No. WO2018/158299, PCT Pub. Date Sep. 7, 2018.
Claims priority of application No. 1751614 (FR), filed on Feb. 28, 2017.
Prior Publication US 2019/0375684 A1, Dec. 12, 2019
Int. Cl. C04B 24/38 (2006.01); C04B 24/12 (2006.01); C04B 28/02 (2006.01); C04B 40/00 (2006.01); C04B 40/06 (2006.01); E21D 11/06 (2006.01); C04B 103/12 (2006.01); C04B 103/22 (2006.01); C04B 111/70 (2006.01)
CPC C04B 24/38 (2013.01) [C04B 24/12 (2013.01); C04B 24/386 (2013.01); C04B 28/02 (2013.01); C04B 40/0039 (2013.01); C04B 40/0658 (2013.01); E21D 11/06 (2013.01); C04B 2103/12 (2013.01); C04B 2103/22 (2013.01); C04B 2111/70 (2013.01)] 12 Claims
 
1. A hydraulic composition comprising:
water;
a hydraulic binder;
at least one setting retarder; and
at least one polysaccharide selected from the group consisting of welan gums, diutan gums, and a mixture thereof;
wherein the ratio by weight of water/hydraulic binder is greater than 2.5.