Study on the improvement of mechanical properties of cement based composites using carbon nanotubes

Abstract

Using ultrasonic method to uniformly disperse carbon nanotubes into cement materials to prepare corresponding cement based composites using carbon nanotubes as raw materials, and focusing on the improvement of their mechanical properties. The research shows that adding carbon nanotubes can greatly improve the mechanical properties of cement based composites, with an optimal amount of 0.10 wt%. At this time, The mechanical properties of cement based composites have the best improvement effect. SEM microscopic analysis shows that the addition of carbon nanotubes can play a pull-out and bridging effect, significantly increasing the ability of cement based materials to resist damage.