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Autoclaved Composites with Nanostructured Silica Additive

Published online by Cambridge University Press:  30 July 2014

Victoria Nelubova ,
Valeria Strokova ,
Alla Cherevatova ,
Nataliya Altynnik  and
Konstantin Sobolev
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
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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.

Keywords

compositenanostructureceramic
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1611: Symposium 4A – Advanced Structural Materials--2013 , 2014 , pp. 111 - 116
Copyright
Copyright © Materials Research Society 2014 

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References

REFERENCES

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