Abstract
This research investigates changes in the nanostructure and the nanoscale local mechanical properties of cement paste with micro- and nano-modifiers. Silica fume and multiwall carbon nanotubes (MWCNTs) were used as micro- and nano-modifiers. An effective method of dispersing CNTs in cement matrix was developed. A detailed study on the effects of CNTs concentration and aspect ratio on the fracture properties, nanoscale properties and microstructure of nanocomposite materials, was conducted. Significant improvements on the macro and nano-mechanical properties of cement paste were observed with the incorporation of CNTs. Results suggest that CNTs can strongly modify and reinforce the cement paste matrix at the nanoscale.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Mondal, P.: Nanomechanical properties of cementitious materials. PhD thesis, Northwestern University (2008)
Makar, J.M., Beaudoin, J.J.: Carbon nanotubes and their applications in the construction industry. In: Nanotechnology in construction. Proceedings of the 1st International Symposium on Nanotechnology in Construction, pp. 331–341. Royal Society of Chemistry (2004)
Makar, J.M., Margeson, J., Luh, J.: Carbon nanotube/cement composites – Early results and potential applications. In: Proceedings of the 3rd International Conference on Construction Materials: Performance, Innovations and Structural Implications, Vancouver, Canada, pp. 1–10 (2005)
Li, G.Y., Wang, P.M., Zhao, X.: Mechanical behavior and microstructure of cement composites incorporating surface-treated multi-walled carbon nanotubes. Carbon 43, 1239–1245 (2005)
Li, G.Y., Wang, P.M., Zhao, X.: Pressure-sensitive and microstructure of carbon nanotube reinforced cement composites. Cem. Concr. Comp. 29, 377–382 (2007)
Saez de Ibarra, Y., Gaitero, J.J., Erkizia, E., Campillo, I.: Atomic force microscopy and nanoindentation of cement pastes with nanotube dispersions. Physica Status Solidi (a) 203, 1076–1081 (2006)
Wansom, S., Kidner, N.J., Woo, L.Y., Mason, T.O.: AC-impedance response of multi-walled carbon nanotube/cement composites. Cem. Concr. Comp. 28, 509–519 (2006)
Cwirzen, A., Habermehl-Chirzen, K., Penttala, V.: Surface decoration of carbon nanotubes and mechanical properties of cement/carbon nanotube composites. Adv. Cem. Res. 20, 65–73 (2008)
Salvetat, J.P., Bonard, J.M., Thomson, N.H., Kulik, A.J., Forro, L., Benoit, W., et al.: Mechanical properties of carbon nanotubes. Appl. Phys. A 69, 255–260 (1999)
Belytschko, T., Xiao, S.P., Schatz, G.C., Ruoff, R.: Atomistic simulations of nanotube fracture. Phys. Rev. B 65, 235430–235437 (2002)
Groert, N.: Carbon nanotubes becoming clean. Mater. Today 10, 28–35 (2007)
Xie, X.L., Mai, Y.W., Zhou, X.P.: Dispersion and alignment of carbon nanotubes in polymer matrix: A review. Mater. Sci. Eng. Rep. 49, 89–112 (2005)
Konsta-Gdoutos, M.S., Metaxa, Z.S., Shah, S.P.: Nanoimaging of highly dispersed carbon nanotube reinforced cement based materials. In: Seventh Intl. RILEM Symp. on Fiber Reinforced Concrete: Design and Applications, Chennai, India, pp. 125–131 (2008)
Shah, S.P., Swartz, S.E., Ouyang, C.: Fracture mechanics of concrete: application of fracture mechanics to concrete, rock and other quasi-brittle materials. John Willey and Sons, New York (1995)
Mondal, P., Shah, S.P., Marks, L.D.: Nanoscale characterization of cementitious materials. ACI Mater. J. 105, 174–179 (2008)
Mindess, S., Young, J.F., Darwin, D.: Concrete. Prentice Hall, Upper Saddle River (2003)
Constantinides, G., Ulm, F.-J.: The nanogranular nature of C-S-H. J. Mech. Phys. Solids 55, 64–90 (2007)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Shah, S.P., Konsta-Gdoutos, M.S., Metaxa, Z.S., Mondal, P. (2009). Nanoscale Modification of Cementitious Materials. In: Bittnar, Z., Bartos, P.J.M., Němeček, J., Šmilauer, V., Zeman, J. (eds) Nanotechnology in Construction 3. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-00980-8_16
Download citation
DOI: https://doi.org/10.1007/978-3-642-00980-8_16
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-00979-2
Online ISBN: 978-3-642-00980-8
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)