Patent ID: 9365456
Filing Date: 2016-06-14
CPC Classification: C04B

Claim Text:
1. A method of making a nanocomposite cementitious material, comprising sonicating an aqueous solution containing surfactant and carbon nanotubes to form a dispersion of carbon nanotubes in the solution, and mixing the dispersion of carbon nanotubes and a cement to form a nanocomposite cementitious material wherein the carbon nanotubes are present in an amount of about 0.048% to about 0.08% by weight of the cement and further wherein the nanocomposite cementitious material exhibits a modified nanostructure so that the average values of stiffness and hardness of C-S-H, as determined by nanoindentation tests, are higher compared to the same cementitious material without carbon nanotubes.