Influence of the Amount of Dispersed Suspension of Carbon Nano-Tubes on Physico-Mechanical Properties of Cement Mortar

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Nanotechnology has become a driving power in most of the branches of industry recently and construction industry is not an exception. Therefore, this paper deals with the topical problem of using nanoparticles in concrete. Carbon nanotubes (CNTs) with exceptional physico-mechanical properties were used in the experimental part of the paper. Their potential for enhancing characteristics of common concrete is promising. A frequent problem of application of carbon nanotubes is their agglomeration, which is caused by high surface tension, Van der Waals force and high ratio of sides. This fact limits possibilities of application of CNTs and it is the main reason of rare use of the promising potential of CNTs. Formed agglomerations can be dispersed by adding energy from outside and if suitable surface active agent in the solution of CNTs and water is added, their re-agglomeration can be prevented. Experimental part of the paper focuses on possibilities of dispersing CNTs by means of ultrasonic homogenizer Bandelin Sonopulse HD 3200 and suitable surface-active substance. Tests specimens were prepared from a suspension of water and CNTs with two different proportions and development of physico-mechanical properties in time was observed. Results confirmed the trends described in foreign literature sources and gave valuable impulses for further attempts to use nanotechnology in concrete technology.

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Periodical:

Edited by:

Michaela Kostelecká

Pages:

65-68

DOI:

10.4028/www.scientific.net/AMR.1106.65

Citation:

T. Jarolím et al., "Influence of the Amount of Dispersed Suspension of Carbon Nano-Tubes on Physico-Mechanical Properties of Cement Mortar", Advanced Materials Research, Vol. 1106, pp. 65-68, 2015

Online since:

June 2015

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$35.00

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[1] E.N. GANESH, Single Walled and Multi Walled Carbon Nanotube Structure, Synthesis and Applications, International Journal of Innovative Technology and Exploring Engineering (IJITEE) ISSN: 2278-3075, Volume-2, Issue-4, March 2014, [online], cit 1. 9. 2014, available at WWW: http: /www. ijitee. org/attachments/File/v2i4/D0561032413. pdf.

[2] N.M. MUBARAKA, E.C. ABDULLAHC, N.S. JAYAKUMARA, J.N. SAHUA, An overview on methods for the production of carbon nanotubes, Journal of Industrial and Engineering Chemistry, [online], cit. 1. 9. 2014, available at WWW: http: /www. sciencedirect. com/science/article/pii/S1226086X13004024.

[3] Junrong YU, Nadia GROSSIORD, Cor E. KONING, Joachim LOOS, Controlling the dispersion of multi-wall carbon nanotubes in aqueous surfactant solution, [online], cit. 2. 9. 2014, available at WWW: http: /www. sciencedirect. com/science/article/pii/S0008622306005306.

DOI: 10.1016/j.carbon.2006.10.010

[4] Frank COLLINS, John LAMBERT, Wen Hui DUAN, The influences of admixtures on the dispersion, workability, and strength of carbon nanotube–OPC paste mixtures, Department of Civil Engineering, Monash University, Australia [online], cit. 4. 9. 2014, available at WWW: http: /www. sciencedirect. com/science/article/pii/S0958946511001703.

DOI: 10.1016/j.cemconcomp.2011.09.013

[5] Graphistrength CW2-45, [online], cit. 4. 9. 2014. available at WWW: http: /www. graphistrength. com/export/sites/graphistrength/. content/medias/downloads/literature/Graphistrength-C-W2-45-English-Dec2013. pdf.

[6] Oscar MENDOZA Germán SIERRA, Jorge I. TOBÓN, Influence of super plasticizer and Ca(OH)2 on the stability of functionalized multi-walled carbon nanotubes dispersions for cement composites applications, [online], cit. 5. 9. 2014, available at WWW: http: /www. sciencedirect. com/science/article/pii/S0950061813004984.

DOI: 10.1016/j.conbuildmat.2013.05.100

[7] ČSN EN 196-1 Methods of testing cement - Part 1: Determination of strength Prague: Czech Office for Standards, Metrology and Testing, October 2005. 28p.

[8] WWW. Mapei. com, [online]. cit. 5. 9. 2014. available at WWW: URL http: /www. mapei. com/IT-EN/mobile/product-detail. asp?IDMacroLinea=0&IDProdotto=704&IDTipo=5&IDLinea=1.

[9] Bandelin Sonopulse HD 3200, [online]. cit. 5. 9. 2014. available at WWW: http: /bandelin. com/datenblaetter/sonopuls5732e. pdf.

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