Publication result detail

Content of Aluminium Hydroxide in Lime-Silica Composite and its Influence on Tobermorite Formation

MELICHAR, J.; ČERNÝ, V.; FLEISCHHACKER, J.; DROCHYTKA, R.

Original Title

Content of Aluminium Hydroxide in Lime-Silica Composite and its Influence on Tobermorite Formation

English Title

Content of Aluminium Hydroxide in Lime-Silica Composite and its Influence on Tobermorite Formation

Type

Paper in proceedings (conference paper)

Original Abstract

Aerated concrete is lightweight building material with excellent thermos-technical properties compared to its strengths, easy workability and economic efficiency. It is material with long tradition of manufacturing since 1924 but its potential is yet possible to be extended. Since the beginning pure ingredients such as lime and silica sand has been used. Nowadays we are looking for ways to replace these expensive raw materials with cheaper alternatives. One of the most important mechanical properties of each material is its strength. In case of aerated concrete the bearer of strength is mineral tobermorite. It is created by reaction of silicon oxides and lime at hydrothermal conditions. It belongs to the group of calcium hydrosilicates with chemical formula Ca5Si6O16(OH)2·4H2O. Main goal of this paper is proposal for modification of the raw materials composition and autoclave regime of aerated concrete using aluminium hydroxide in order to improve final mechanical properties and mineralogical composition.

English abstract

Aerated concrete is lightweight building material with excellent thermos-technical properties compared to its strengths, easy workability and economic efficiency. It is material with long tradition of manufacturing since 1924 but its potential is yet possible to be extended. Since the beginning pure ingredients such as lime and silica sand has been used. Nowadays we are looking for ways to replace these expensive raw materials with cheaper alternatives. One of the most important mechanical properties of each material is its strength. In case of aerated concrete the bearer of strength is mineral tobermorite. It is created by reaction of silicon oxides and lime at hydrothermal conditions. It belongs to the group of calcium hydrosilicates with chemical formula Ca5Si6O16(OH)2·4H2O. Main goal of this paper is proposal for modification of the raw materials composition and autoclave regime of aerated concrete using aluminium hydroxide in order to improve final mechanical properties and mineralogical composition.

Keywords

aluminium hydroxide, silica sand, aerated concrete, tobermorite, X-ray powder diffraction

Key words in English

aluminium hydroxide, silica sand, aerated concrete, tobermorite, X-ray powder diffraction

Authors

MELICHAR, J.; ČERNÝ, V.; FLEISCHHACKER, J.; DROCHYTKA, R.

RIV year

2019

Released

15.03.2018

Publisher

Trans Tech Publications

Location

Switzerland

Book

Materials Science Forum

ISBN

0255-5476

Periodical

Materials Science Forum

Volume

2018

Number

916

State

Swiss Confederation

Pages from

195

Pages to

199

Pages count

5

BibTex

@inproceedings{BUT143704,
  author="Jindřich {Melichar} and Vít {Černý} and Ján {Fleischhacker} and Rostislav {Drochytka}",
  title="Content of Aluminium Hydroxide in Lime-Silica Composite and its Influence on Tobermorite Formation",
  booktitle="Materials Science Forum",
  year="2018",
  journal="Materials Science Forum",
  volume="2018",
  number="916",
  pages="195--199",
  publisher="Trans Tech Publications",
  address="Switzerland",
  doi="10.4028/www.scientific.net/MSF.916.195",
  issn="0255-5476"
}