Publication detail

Hygric and mechanical parameters of ternary binder based plasters lightweighted by expanded perlite

ČÁCHOVÁ, M. KOŇÁKOVÁ, D. VEJMELKOVÁ, E. VYŠVAŘIL, M. BAYER, P.

Original Title

Hygric and mechanical parameters of ternary binder based plasters lightweighted by expanded perlite

English Title

Hygric and mechanical parameters of ternary binder based plasters lightweighted by expanded perlite

Type

conference paper

Language

en

Original Abstract

This article is focused on modern plasters with improved thermal insulating ability. The studied plasters were composed of lime, cement, ceramic powder, expanded perlite and silica sand. Regarding the matrix, three kinds of binders were used. Lime was partially replaced by ceramic powder. These waste materials show good pozzolanic reactivity and thus bring economic and ecological benefits. Portland cement was added as a third component to the mixture for the purpose of improving mechanical performance of the studied plasters. In this article, mechanical properties of designed plasters are presented. It was proved that matrix strengthening brought positive effect and eliminated the deterioration of mechanical behaviour; the final values of compressive strength were over 3 MPa. Due to desired high porosity of the studied plasters, their durability can be strongly affected by presence of the water. Therefore, in this article, the hygric parameters were studied too. Namely, the water absorption coefficient, apparent moisture diffusivity, the water vapour diffusion resistance factor and sorption and desorption isotherms belong among studied hygric characteristics. In this article, pore size distribution curves, which affect the discussed parameters, are presented.

English abstract

This article is focused on modern plasters with improved thermal insulating ability. The studied plasters were composed of lime, cement, ceramic powder, expanded perlite and silica sand. Regarding the matrix, three kinds of binders were used. Lime was partially replaced by ceramic powder. These waste materials show good pozzolanic reactivity and thus bring economic and ecological benefits. Portland cement was added as a third component to the mixture for the purpose of improving mechanical performance of the studied plasters. In this article, mechanical properties of designed plasters are presented. It was proved that matrix strengthening brought positive effect and eliminated the deterioration of mechanical behaviour; the final values of compressive strength were over 3 MPa. Due to desired high porosity of the studied plasters, their durability can be strongly affected by presence of the water. Therefore, in this article, the hygric parameters were studied too. Namely, the water absorption coefficient, apparent moisture diffusivity, the water vapour diffusion resistance factor and sorption and desorption isotherms belong among studied hygric characteristics. In this article, pore size distribution curves, which affect the discussed parameters, are presented.

Keywords

plaster; brick powder; expanded perlite; water transport; compressive strength; porosity;

Released

12.07.2018

Publisher

IOP Publishing

ISBN

1757-8981

Periodical

IOP Conference Series: Materials Science and Engineering

Year of study

379

Number

1

State

GB

Pages from

1

Pages to

8

Pages count

8

URL

http://iopscience.iop.org/article/10.1088/1757-899X/379/1/012004

Full text in the Digital Library

http://hdl.handle.net/11012/137139

Documents

BibTex 


@inproceedings{BUT148886,
  author="Monika {Čáchová} and Dana {Koňáková} and Eva {Vejmelková} and Martin {Vyšvařil} and Patrik {Bayer}",
  title="Hygric and mechanical parameters of ternary binder based plasters lightweighted by expanded perlite",
  annote="This article is focused on modern plasters with improved thermal insulating ability.
The studied plasters were composed of lime, cement, ceramic powder, expanded perlite and
silica sand. Regarding the matrix, three kinds of binders were used. Lime was partially replaced
by ceramic powder. These waste materials show good pozzolanic reactivity and thus bring
economic and ecological benefits. Portland cement was added as a third component to
the mixture for the purpose of improving mechanical performance of the studied plasters. In this
article, mechanical properties of designed plasters are presented. It was proved that matrix
strengthening brought positive effect and eliminated the deterioration of mechanical behaviour;
the final values of compressive strength were over 3 MPa. Due to desired high porosity of
the studied plasters, their durability can be strongly affected by presence of the water. Therefore,
in this article, the hygric parameters were studied too. Namely, the water absorption coefficient,
apparent moisture diffusivity, the water vapour diffusion resistance factor and sorption and
desorption isotherms belong among studied hygric characteristics. In this article, pore size
distribution curves, which affect the discussed parameters, are presented.",
  address="IOP Publishing",
  booktitle="International Conference Building Materials, Product and Technologies",
  chapter="148886",
  doi="10.1088/1757-899X/379/1/012004",
  howpublished="online",
  institution="IOP Publishing",
  number="1",
  year="2018",
  month="july",
  pages="1--8",
  publisher="IOP Publishing",
  type="conference paper"
}