公开(公告)号：US10793764B2

公开(公告)日：2020-10-06

申请号：US15568294

申请日：2016-04-22

Applicant: LAFARGE

Inventor： Nikolaos Vlasopoulos ,  Jeffrey Chen

IPC: C09K8/46 ,  C04B28/04 ,  C09K8/473 ,  C04B14/04 ,  C04B14/10 ,  C04B14/14 ,  C04B18/06 ,  C04B18/08 ,  C04B18/10 ,  C04B18/14 ,  E21B33/14 ,  C04B111/40 ,  C04B111/00

Abstract: A cementitious binder, includes a hydraulic binder in an amount in the range from 50 to 80% by weight of the cementitious binder; a first siliceous based material in an amount in the range from 0.5 to 35% by weight of the cementitious binder, the first siliceous based material having a (SiO2)/(Al2O3) ratio by weight greater than 2.5; a second siliceous based material in an amount in the range from 10 to 25% by weight of the cementitious binder, the second siliceous based material being different from the first siliceous based material and having (a) a (SiO2)/(Al2O3) ratio by weight greater than 10 and (b) a BET specific surface area greater than 5 m2/g; and an aluminum based material in the range from 0 to 10% by weight of the cementitious binder and having a (SiO2)/(Al2O3) ratio by weight lower than 2.5, wherein 0.09