A novel cement-based hybrid material

Albert G. Nasibulin, S.D. Shandakov, Larisa I. Nasibulina, Andrzej Cwirzen, P.R. Mudimela, Karin Habermehl-Cwirzen, Dmitrii A. Grishin, Yu.V. Gavrilov, J.E.M. Malm, U. Tapper, Y. Tian, Vesa Penttala, M.J. Karppinen, E.I. Kauppinen

Research output: Contribution to journalArticleScientificpeer-review

118 Citations (Scopus)
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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.
Original languageEnglish
Article number023013
Pages (from-to)1-11
JournalNew Journal of Physics
Volume11
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

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