VGTU talpykla > Fundamentinių mokslų fakultetas / Faculty of Fundamental Sciences > Moksliniai straipsniai / Research articles >

Lietuvių   English
Please use this identifier to cite or link to this item: http://dspace.vgtu.lt/handle/1/220

Title: Cement based foam concrete reinforced by carbon nanotubes
Authors: Yakovlev, Grigorij
Kerienė, Jadvyga
Gailius, Albinas
Girnienė, Ingrida
Keywords: Carbon nanotubes
Fibrillar structures
Dehydropolycondensation
Carbonization
X-ray photoelectron spectra
Issue Date: 2006
Publisher: Kauno technologijos universitetas
Citation: Yakovlev, G.; Kerienė, J.; Gailius, A.; Girnienė, I. 2006. Cement based foam concrete reinforced by carbon nanotubes, Materials Science [Medžiagotyra] 12(2): 147-151.
Abstract: The main task of the presented research was to investigate the carbon nanotubes, synthesized from aromatic hydrocarbons and as well as to investigate the possibilities of production and main technological properties of Portland cement based foam concrete reinforced by dispersed carbon nanotubes. The method of stimulation of dehydropolycon-densation and carbonization of aromatic hydrocarbons in chemical active environment (melts of aluminium, copper, nickel, iron salts) was used for carbon nanotubes synthesis. The results of investigation of the synthesized carbon nanotubes by X-ray photoelectron spectroscopy showed that they contain (80 – 90) % of carbon. The examination of the carbon nanotubes microstructure by electron microscope have shown that the nanotubes have a cylindric form, with diameter ranging up to 100 nm and length up to 20 μm. The nanotubes are agglomerated to fiber shaped agglomerates with a diameter up to 30 μm and a length up to 10 mm. The carbon nanotubes were used as a high strength dispersed reinforcement for production of foam non-autoclave concrete produced on the base of Portland cement. The results of the investigation of the reinforced non-autoclave cemente foam concrete showed that the use of carbon nanotubes (0.05 % by mass) in production of these concretes allows to decrease its heat conductivity up to (12 – 20) % and increase its compressive strength up to 70 %.
URI: http://dspace1.vgtu.lt/handle/1/220
ISSN: 1392-1320
Appears in Collections:Moksliniai straipsniai / Research articles

Files in This Item:

File Description SizeFormat
147-151_Yakovlev_Mater_science.pdf694.37 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback