Effect of Multi-Wall Carbon Nanotube on Fracture Mechanical Property of Cement-Based Composite

Jian Lin Luo; Zhong Dong Duan; Tie Jun Zhao; Qiu Yi Li

doi:10.4028/www.scientific.net/AMR.146-147.581

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 146-147Effect of Multi-Wall Carbon Nanotube on Fracture...

Effect of Multi-Wall Carbon Nanotube on Fracture Mechanical Property of Cement-Based Composite

Abstract:

Cementitious composites reinforced with multi-wall carbon nanotube (MWNT) (MWFRC) were prepared with surfactant dispersion, ultrasonication, and subsequently high-speed mixing process. Fracture mechanical performance of the cured MWFRC was characterized according to three-point bending method (ASTM 399). It is found that the addition of nanotubes significantly improve the flexural strength, the stress-intensity factor of the nanocomosites with dispersed MWNT fiber, the maximal enhancement amplitude is near to 45%, 80% with respect to the baseline, respectively. The superior fiber bridging capability of the dispersed MWNTs upon the micro-cracks contributes to the reinforcement to cement matrix.

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Periodical:

Advanced Materials Research (Volumes 146-147)

Pages:

581-584

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.146-147.581

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Online since:

October 2010

Authors:

Jian Lin Luo, Zhong Dong Duan, Tie Jun Zhao, Qiu Yi Li

Keywords:

Carbon Nanotube (CN), Fiber Reinforced Cement Composite, Fracture Toughness

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