Patent ID: 11884601
Assignee: SIKA TECHNOLOGY AG
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A cement based composition, comprising cement and 0.01 to 1.5% by weight, based on a weight of the cement, of an admixture, the admixture comprising:
a) an aqueous solution of polycarboxylate ether, a proportion of the polycarboxylate ether being in a range of 10 to 70% by weight, based on a total weight of the admixture, and
b) at least one functionalized nanomaterial selected from carbon nanotubes functionalized by carboxyl groups and/or carbon nanofibers functionalized by carboxyl groups, wherein the at least one functionalized nanomaterial is dispersed in the aqueous solution, wherein a proportion of the at least one functionalized nanomaterial is in a range of 0.04 to 0.4% by weight, based on the total weight of the admixture.