Archive - Известия Казанского государственного архитектурно-строительного университета.

Включен в Перечень ведущих рецензируемых научных журналов и изданий, определяемый ВАК

Archive

About the authors



First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Khuzin A.F. – candidate of technical sciences, assistant E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Rahimov R.Z. – doctor of technical sciences, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1
Title of the articleThe effect of multiwalled carbon nanotubes on the porosity of the cement stone
Abstract.Depending on the composition and preparation technology of cement composites can have high strength in compression and, at the same time, the relatively low strength values in bending and tension. This difference in performance for the most part, due to the porosity of the concrete. The cement paste, which is the binder in concrete, generally has a porous structure that includes macro-, micro- and mesopore. The past decade has increased interest in the works associated with the use of construction materials of the particles, the characteristic size of which does not exceed 100 nm. The study of the structure of cement stone shows the manifestation of particles of MWCNT reinforcing effect. Pore structure of samples of cement stone were carried out by optical methods (electron microscopy and x-ray) computed tomography. The study of the structure of cement stone with different magnification has allowed to establish that the modification of cement stone with multilayer carbon nano tubes leads to a redistribution of the number of pores to decrease their size. The decrease in the proportion of large pores with a simultaneous increase in the number of micro- and nano-pores contribute to the more dense structure of cement stone and as a consequence leads to increased strength characteristics of cement composites, water resistance, frost resistance and resistance to aggressive environments.
Keywords.carbon nanotubes, an additive, cement stone, porosity, tomography.
For citations:Khuzin A.F., Rahimov R.Z. The effect of multiwalled carbon nanotubes on the porosity of the cement stone // Izvestiya KGASU. 2016. №3(37) P.231-236.


New issues

 
Russian (CIS)English (United Kingdom)

Search

Vinaora Visitors Counter

mod_vvisit_countermod_vvisit_countermod_vvisit_countermod_vvisit_countermod_vvisit_countermod_vvisit_counter
mod_vvisit_counterToday40
mod_vvisit_counterYesterday43
mod_vvisit_counterThis week252
mod_vvisit_counterLast week185
mod_vvisit_counterThis month83
mod_vvisit_counterLast month1151
mod_vvisit_counterAll days720617

Online (12 hours ago): 2
Your IP: 192.168.1.44
,
Today: Дек 02, 2021