Publication detail

Aluminosilicate system based on alkali activation of industrial by-products reinforced with wollastonite microfibers

BUZEK, L. MÁSILKO, J. KOPLÍK, J. ŠOUKAL, F.

Original Title

Aluminosilicate system based on alkali activation of industrial by-products reinforced with wollastonite microfibers

English Title

Aluminosilicate system based on alkali activation of industrial by-products reinforced with wollastonite microfibers

Type

conference paper

Language

en

Original Abstract

Portland cement-based products are the most commonly used building materials. However, it is well known that the production of OPC not only consumes significant amount of natural resources and energy but also releases high quantity of carbon dioxide (CO2) to the atmosphere. Purpose of this work is to develop material similar to Portland cement-based concrete, which would be convenient both in terms of energy and environmental friendliness. This article presents preparation, composition and properties of inorganic aluminosilicate polymer, called geopolymer, synthesized from an alkali activation of fly ash/slag mixtures. In the research, effects of different kinds of fly ash from Czech power plants and different dosage of slag and alkali activators that influence compressive strength of hardened geopolymer pastes were discussed. Relatively small flexural strength after 28 days was enhanced with wollastonite microfibers. The study of the microstructure was based on XRD and SEM-EDX analyses.

English abstract

Portland cement-based products are the most commonly used building materials. However, it is well known that the production of OPC not only consumes significant amount of natural resources and energy but also releases high quantity of carbon dioxide (CO2) to the atmosphere. Purpose of this work is to develop material similar to Portland cement-based concrete, which would be convenient both in terms of energy and environmental friendliness. This article presents preparation, composition and properties of inorganic aluminosilicate polymer, called geopolymer, synthesized from an alkali activation of fly ash/slag mixtures. In the research, effects of different kinds of fly ash from Czech power plants and different dosage of slag and alkali activators that influence compressive strength of hardened geopolymer pastes were discussed. Relatively small flexural strength after 28 days was enhanced with wollastonite microfibers. The study of the microstructure was based on XRD and SEM-EDX analyses.

Keywords

geopolymer, fly ash, slag, wollastonite microfiber

RIV year

2010

Released

21.09.2010

Publisher

Aalborg University

Location

Aalborg

ISBN

87-91606-20-9

Book

12th International Inorganic-Bonded Fiber Composites Conference

Edition number

1

Pages from

316

Pages to

320

Pages count

5

Documents

BibTex


@inproceedings{BUT34580,
  author="Lukáš {Kalina} and Jiří {Másilko} and Jan {Koplík} and František {Šoukal}",
  title="Aluminosilicate system based on alkali activation of industrial by-products reinforced with wollastonite microfibers",
  annote="Portland cement-based products are the most commonly used building materials. However, it is well known that the production of OPC not only consumes significant amount of natural resources and energy but also releases high quantity of carbon dioxide (CO2) to the atmosphere. Purpose of this work is to develop material similar to Portland cement-based concrete, which would be convenient both in terms of energy and environmental friendliness. This article presents preparation, composition and properties of inorganic aluminosilicate polymer, called geopolymer, synthesized from an alkali activation of fly ash/slag mixtures. In the research, effects of different kinds of fly ash from Czech power plants and different dosage of slag and alkali activators that influence compressive strength of hardened geopolymer pastes were discussed. Relatively small flexural strength after 28 days was enhanced with wollastonite microfibers. The study of the microstructure was based on XRD and SEM-EDX analyses.",
  address="Aalborg University",
  booktitle="12th International Inorganic-Bonded Fiber Composites Conference",
  chapter="34580",
  howpublished="print",
  institution="Aalborg University",
  year="2010",
  month="september",
  pages="316--320",
  publisher="Aalborg University",
  type="conference paper"
}