Effect of Carbon Nanotube Size on Compressive Strengths of Nanotube Reinforced Cementitious CompositesReport as inadecuate




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Journal of MaterialsVolume 2014 2014, Article ID 960984, 8 pages

Research Article

Department of CE, BUET, Dhaka 1000, Bangladesh

Department of CE, University of Texas at Arlington, Arlington, TX 76019, USA

Received 3 December 2013; Revised 25 June 2014; Accepted 1 July 2014; Published 17 July 2014

Academic Editor: Hugh J. Byrne

Copyright © 2014 Tanvir Manzur et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Application of nanoscale science to construction material has already begun. In recent times, various nanofibers have raised the interest of researchers due to their exceptional mechanical properties and high potential to be used as reinforcement within cement matrix. Carbon nanotube CNT is one of the most important areas of research in the field of nanotechnology. The size and exceptional mechanical properties of CNT show their high potential to be used to produce high performance next generation cementitious composites. In this study, an attempt has been made to investigate the effect of size of CNTs on compressive strengths of CNT reinforced cement composites. Seven different sizes of multiwalled nanotubes MWNTs were used to produce MWNT-cement composites. A trend was observed regarding the effect of nanotube size on compressive strength of composites in most cases. MWNT with outside diameter OD of 20 nm or less exhibited relatively better performance. Smaller MWNT can be distributed at much finer scale and consequently filling the nanopore space within the cement matrix more efficiently. This in turn resulted in stronger composites.





Author: Tanvir Manzur, Nur Yazdani, and Md. Abul Bashar Emon

Source: https://www.hindawi.com/



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