A novel cement-based hybrid material

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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2009

Department

Department of Chemistry
Department of Civil and Structural Engineering
Department of Applied Physics

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Language

en

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New Journal of Physics, Volume 11, pp. 1-11

Abstract

Carbon nanotubes (CNTs) and carbon nanofibers (CNFs) are known to possess exceptional tensile strength, elastic modulus and electrical and thermal conductivity. They are promising candidates for the next-generation high-performance structural and multi-functional composite materials. However, one of the largest obstacles to creating strong, electrically or thermally conductive CNT/CNF composites is the difficulty of getting a good dispersion of the carbon nanomaterials in a matrix. Typically, time-consuming steps of purification and functionalization of the carbon nanomaterial are required. We propose a new approach to grow CNTs/CNFs directly on the surface of matrix particles. As the matrix we selected cement, the most important construction material. We synthesized in a simple one-step process a novel cement hybrid material (CHM), wherein CNTs and CNFs are attached to the cement particles. The CHM has been proven to increase 2 times the compressive strength and 40 times the electrical conductivity of the hardened paste, i.e. concrete without sand.

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DOI

10.1088/1367-2630/11/2/023013

Citation

Nasibulin, A G, Shandakov, S D, Nasibulina, L I, Cwirzen, A, Mudimela, P R, Habermehl-Cwirzen, K, Grishin, D A, Gavrilov, Y V, Malm, J E M, Tapper, U, Tian, Y, Penttala, V, Karppinen, M J & Kauppinen, E I 2009, 'A novel cement-based hybrid material', New Journal of Physics, vol. 11, 023013, pp. 1-11. https://doi.org/10.1088/1367-2630/11/2/023013

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https://urn.fi/URN:NBN:fi:aalto-202510087603

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