Study of the Effect of Replacing Microsilica in Heat-Resistant Concrete with Additive based on Metakaolin

Study of the Effect of Replacing Microsilica in Heat-Resistant Concrete with Additive based on... A comparative study is provided for the effect of microsilica additive and one based on metakaolin on hydration of alumina cement and cement stone structure formation after hardening and firing. It is established that in a composite with alumina cement an additive based on metakaolin promotes transfer of cement minerals into solution more rapidly than microsilica additive, and also that composite hydration with additive based on metakaolin proceeds more rapidly than a composite with microsilica. Additive based on metakaolin compared with microsilica improves mechanical properties of heat-resistant concrete based on a chamotte filler: after hardening and firing the ultimate strength in compression for specimens with additive based on metakaolin is higher by 5 – 27% than this index for specimens with microsilica additive. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Study of the Effect of Replacing Microsilica in Heat-Resistant Concrete with Additive based on Metakaolin

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Publisher
Springer US
Copyright
Copyright © 2013 by Springer Science+Business Media New York
Subject
Material Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/s11148-013-9580-0
Publisher site
See Article on Publisher Site

Abstract

A comparative study is provided for the effect of microsilica additive and one based on metakaolin on hydration of alumina cement and cement stone structure formation after hardening and firing. It is established that in a composite with alumina cement an additive based on metakaolin promotes transfer of cement minerals into solution more rapidly than microsilica additive, and also that composite hydration with additive based on metakaolin proceeds more rapidly than a composite with microsilica. Additive based on metakaolin compared with microsilica improves mechanical properties of heat-resistant concrete based on a chamotte filler: after hardening and firing the ultimate strength in compression for specimens with additive based on metakaolin is higher by 5 – 27% than this index for specimens with microsilica additive.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Nov 20, 2013

References

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