Nano Archive

A novel cement-based hybrid material

Nasibulin, Albert G and Shandakov, Sergey D and Nasibulina, Larisa I and Cwirzen, Andrzej and Mudimela, Prasantha R and Habermehl-Cwirzen, Karin and Grishin, Dmitrii A and Gavrilov, Yuriy V and Malm, Jari E M and Tapper, Unto and Tian, Ying and Penttala, Vesa and Karppinen, Maarit J and Kauppinen, Esko I (2009) A novel cement-based hybrid material. New Journal of Physics, 11 (2). 023013 (11pp).

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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.

Item Type:Article
ID Code:5142
Deposited By:Prof. Alexey Ivanov
Deposited On:05 Aug 2009 09:00
Last Modified:06 Aug 2009 11:31

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