A novel cement-based hybrid material

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Journal Title
Journal ISSN
Volume Title
School of Chemical Technology | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2009
Major/Subject
Mcode
Degree programme
Language
en
Pages
023013/1-11
Series
New Journal of Physics, Volume 11, Issue 2
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.
Description
Keywords
carbon nanotubes, carbon nanofibers composite materials
Other note
Citation
Nasibulin, Albert G & Shandakov, Sergey D & Nasibulina, Larisa I & Cwirzen, Andrzej & Mudimela, Prasantha R & Habermehl-Cwirzen, Karin & Grishin, Dmitrii A & Gavrilov, Yuriy V & Malm, Jari E M & Tapper, Unto & Tian, Ying & Penttala, Vesa & Karppinen, Maarit & Kauppinen, Esko I. 2009. A novel cement-based hybrid material. New Journal of Physics. Volume 11, Issue 2. 023013/1-11. ISSN 1367-2630 (printed). DOI: 10.1088/1367-2630/11/2/023013.