Detail publikace

Rheological and mechanical properties of alkali-activated brick powder based pastes: effect of amount of alkali activator

VYŠVAŘIL, M. VEJMELKOVÁ, E. ROVNANÍKOVÁ, P.

Originální název

Rheological and mechanical properties of alkali-activated brick powder based pastes: effect of amount of alkali activator

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The rheological behaviour and mechanical properties of alkali-activated materials prepared by activation of a brick powder by alkaline solution (alkali + water glass) is presented in this paper. The effect of quantity of alkaline activator on the rheological and mechanical properties of brick pastes prepared from two types of brick dust was monitored. The rheological investigation included the characterization of flow properties and viscoelastic properties of the fresh mixtures. Compression and bending strengths were determined at 7, 28, 56 and 90 days. These materials have a low yield stress and a high viscosity strongly influenced by the amount of alkali activator. The fresh brick pastes become liquid more easily with increasing amount of alkali activator. The rising amount of alkali activator leads to a decrease of the material cohesion. The results of rheological and mechanical properties investigation showed considerable differences in behaviour of particular types of brick dust.

Klíčová slova

brick powder; alkaline activation; rheology; yield stress; viscosity; strength; geopolymerization

Autoři

VYŠVAŘIL, M.; VEJMELKOVÁ, E.; ROVNANÍKOVÁ, P.

Vydáno

12. 7. 2018

Nakladatel

IOP Publishing

ISSN

1757-8981

Periodikum

IOP Conference Series: Materials Science and Engineering

Ročník

379

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

8

Strany počet

8

URL

http://iopscience.iop.org/article/10.1088/1757-899X/379/1/012011

Plný text v Digitální knihovně

http://hdl.handle.net/11012/137356

BibTex

@inproceedings{BUT148887,
  author="Martin {Vyšvařil} and Eva {Vejmelková} and Pavla {Rovnaníková}",
  title="Rheological and mechanical properties of alkali-activated brick powder based pastes: effect of amount of alkali activator",
  booktitle="International Conference Building Materials, Product and Technologies",
  year="2018",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="379",
  number="1",
  pages="1--8",
  publisher="IOP Publishing",
  doi="10.1088/1757-899X/379/1/012011",
  issn="1757-8981",
  url="http://iopscience.iop.org/article/10.1088/1757-899X/379/1/012011"
}