Cement-Based Composite with Carbon Nanotubes Reinforcement Tailored for Structural Damping
Cement-based composites filled with some multi-walled carbon nanotubes (MWNTs) (MWNT/CC) were fabricated using surfactant enwrapping, ultrasonic treatment, and subsequently intensive shear mixing. The damping capacities of the cured nanocomposites were characterized with forced vibration testing and half-power bandwidth identification method. Results show that, the MWNTs can greatly enhance the structural damping capacity of the MWNT/CC beam with balanced strength reinforcement. There exists 44.5%, 10% increase in the damping ratio, and fundamental frequency of the MWNT/CC with 1.0 wt% MWNTs addition, along with strength reinforcement, as compared to the reference, respectively.
Jinglong Bu, Zhengyi Jiang and Sihai Jiao
J. L. Luo et al., "Cement-Based Composite with Carbon Nanotubes Reinforcement Tailored for Structural Damping", Advanced Materials Research, Vols. 150-151, pp. 526-529, 2011