Publication detail

Options for the implementation of new secondary raw materials in autoclaved aerated concrete

ČERNÝ, V. DROCHYTKA, R. ŠEBESTOVÁ, P.

Original Title

Options for the implementation of new secondary raw materials in autoclaved aerated concrete

Type

conference paper

Language

English

Original Abstract

Currently, the only material used as the primary siliceous component of autoclaved aerated concrete (AAC) in the Czech Republic is sand. Within the context of previously conducted research, this article evaluates the use of new types of secondary raw materials to achieve greater economic and ecological benefits during AAC production. The investigated secondary raw materials include fly and bottom ash, slag, and waste glass. AAC composite specimens with admixtures of secondary raw materials were cured by hydrothermal conditions in a laboratory autoclave for 7 and 12 h of isothermal durability 190°C. Of the secondary raw materials tested under laboratory conditions, the highest strength was obtained in the specimen with a 10% waste glass admixture. The other admixture that positively affected the mechanical characteristics of specimens was waste incinerator slag. It is clear from the results of this investigation that the use of secondary raw materials does not diminish strength, but improves mixture rheology and supports the formation of tobermorite.

Keywords

Aerated autoclaved concrete; secondary raw material; fluidized bed combustion ash; slag, recycled glass

Authors

ČERNÝ, V.; DROCHYTKA, R.; ŠEBESTOVÁ, P.

Released

1. 9. 2018

Publisher

Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co.

Location

Berlin

ISBN

2509-7075

Periodical

ce/papers

Year of study

2

Number

4

State

Federal Republic of Germany

Pages from

431

Pages to

437

Pages count

7

URL

https://doi.org/10.1002/cepa.841

BibTex

@inproceedings{BUT149485,
  author="Vít {Černý} and Rostislav {Drochytka} and Pavlína {Ondříčková}",
  title="Options for the implementation of new secondary raw materials in autoclaved aerated concrete",
  booktitle="ICAAC ‐ 6th International Conference on Autoclaved Aerated Concrete",
  year="2018",
  journal="ce/papers",
  volume="2",
  number="4",
  pages="431--437",
  publisher="Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co.",
  address="Berlin",
  doi="10.1002/cepa.841",
  issn="2509-7075",
  url="https://doi.org/10.1002/cepa.841"
}