Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-28T02:13:41.882Z Has data issue: false hasContentIssue false

Autoclaved Composites with Nanostructured Silica Additive

Published online by Cambridge University Press:  30 July 2014

Victoria Nelubova
Affiliation:
The Belgorod State Technological University named after V.G. Shoukhov, Belgorod, Russia
Valeria Strokova
Affiliation:
The Belgorod State Technological University named after V.G. Shoukhov, Belgorod, Russia
Alla Cherevatova
Affiliation:
The Belgorod State Technological University named after V.G. Shoukhov, Belgorod, Russia
Nataliya Altynnik
Affiliation:
The Belgorod State Technological University named after V.G. Shoukhov, Belgorod, Russia
Konstantin Sobolev
Affiliation:
Department of Civil Engineering and Mechanics, University of Wisconsin-Milwaukee, Milwaukee, USA
Get access

Abstract

This article deals with the development of autoclaved composites (AC) with nanostructured additive (NSA) and reports on the beneficial effects of NSA in autoclaved lime-silica mixtures.

Based on the results of X-ray diffraction and electron microscopy investigation, the effects of hydrothermal conditions on the mechanisms of lime-silica interaction are revealed. It is demonstrated that the addition of NSA intensifies the formation of the C-S-H phase, reduces the quantities of amorphous phases and enables the formation of low-base calcium hydrosilicates (11Å-tobermorite and xonotlite).

The physical and mechanical properties of autoclaved composites with NSA are investigated and optimized. The reported research demonstrates the feasibility of NSA application to improve the performance of autoclaved materials.

Type
Articles
Copyright
Copyright © Materials Research Society 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Nelubova, V.V., Constr. Mater. 9, 25 (2008), in Russian Google Scholar
Bozhenov, P. I., Technology of Autoclave Materials, (Stroiizdat, Leningrad, 1978), pp. 368, in Russian Google Scholar
Sobolev, K., Ferrada-Gutiérrez, M., How Nanotechnology Can Change the Concrete World: Part 1. American Ceramic Society Bulletin 10, 1417, (2005).Google Scholar
Flores, I., Sobolev, K., Torres, L.M., Valdez, P.L., Zarazua, E., and Cuellar, E.L., Transportation Research Record: Journal of the Transportation Research Board 1 (2141), 1014 (2010).CrossRefGoogle Scholar
Cherevatova, A., Strokova, V., Zhernovsky, I., Pavlenko, N., Nelubova, V., Sobolev, K., The development of nanostrured SiO2 binders for application in cellular concrete, NICOM 4: 4th International Symposium on Nanotechnology in Construction, Greece, 2012.Google Scholar
Zhernovsky, I.V., Nelyubova, V., Cherevatova, A.V., Strokova, V.V., Constr. Mater. 11, 100103 (2009), in Russian Google Scholar
Zhernovsky, I., Strokova, V., Koshukhova, N., Sobolev, K., The use of mechano-activation for nanostructuring of quartz materials, NICOM 4: 4th International Symposium on Nanotechnology in Construction, Greece (2012).Google Scholar
Cherevatova, A.V., Zhernovsky, I., Nelyubova, V.V., Refractories and Industrial Ceramics 51 (4), 310311 (2009), in Russian CrossRefGoogle Scholar
Nelubova, V.V., Strokova, V.V., Pavlenko, N.V., Zhernovsky, I., Constr. Mater. 2, 1115 (2013), in Russian Google Scholar
Fomina, E.V., Nelyubova, V.V., Strokova, V.V., Altynnik, N.I., Constr. Mater. 3, 1819 (2012), in Russian Google Scholar