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Achieving a heat resistance of cellular concrete based on alkali activated fly ash cements

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Abstract

Alkali activated fly ash is a modern cement system based 90 % on industrial by-products which has a set of unique properties tailored by hydration products being similar to zeolites. When appropriately designed, these materials may be used at high temperatures, since zeolite-like products were found to be able to undergo non-destructive re-crystallization to anhydrous aluminosilicates (nepheline, albite, etc.). As an example of a possible application, heat resistant aerated concrete was designed and industrially tested for heat insulation of glassware plant at 700–800 °C.

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Authors and Affiliations

  1. Scientific Research Institute for Binders and Materials, Kiev National University for Civil Engineering and Architecture, Kiev, Ukraine

    Pavel Krivenko & Georgiy Kovalchuk

Authors
  1. Pavel Krivenko
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  2. Georgiy Kovalchuk
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Correspondence to Pavel Krivenko.

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Krivenko, P., Kovalchuk, G. Achieving a heat resistance of cellular concrete based on alkali activated fly ash cements. Mater Struct 48, 599–606 (2015). https://doi.org/10.1617/s11527-014-0479-0

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  • DOI: https://doi.org/10.1617/s11527-014-0479-0

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