Publication result detail

The influence of the addition of gypsum on some selected properties of lime-metakaolin mortars

MAJEROVÁ, J; DROCHYTKA, R.

Original Title

The influence of the addition of gypsum on some selected properties of lime-metakaolin mortars

English Title

The influence of the addition of gypsum on some selected properties of lime-metakaolin mortars

Type

Paper in proceedings (conference paper)

Original Abstract

The renovation and replacement of historical plasters is still a very current topic. Today’s trend is for the production of dry mortar mixtures that can be used for the renovation of historic buildings. The article therefore focuses on the preparation of gypsum-modified lime-metakaolin mortar. An experiment consisted of two stages. In the first stage of the experiment, the basic technological properties of fresh and hardened mortars were examined (bulk density of fresh and hardener mortar, compressive and flexural strength). The second stage aimed at monitoring the hydration process in different environments. Environments should simulate real factors affecting the plaster (humidity, low and higher temperatures). To determinate of the phase composition, the X-ray diffraction analysis was used. The results showed that gypsum in the lime-metakaolin plaster caused an increase in compressive and flexural strength. The presence of gypsum also conduced to the formation of ettringite and this has caused volumetric changes.

English abstract

The renovation and replacement of historical plasters is still a very current topic. Today’s trend is for the production of dry mortar mixtures that can be used for the renovation of historic buildings. The article therefore focuses on the preparation of gypsum-modified lime-metakaolin mortar. An experiment consisted of two stages. In the first stage of the experiment, the basic technological properties of fresh and hardened mortars were examined (bulk density of fresh and hardener mortar, compressive and flexural strength). The second stage aimed at monitoring the hydration process in different environments. Environments should simulate real factors affecting the plaster (humidity, low and higher temperatures). To determinate of the phase composition, the X-ray diffraction analysis was used. The results showed that gypsum in the lime-metakaolin plaster caused an increase in compressive and flexural strength. The presence of gypsum also conduced to the formation of ettringite and this has caused volumetric changes.

Keywords

Historic mortar, metakaolin, lime, gypsum, ettringite

Key words in English

Historic mortar, metakaolin, lime, gypsum, ettringite

Authors

MAJEROVÁ, J; DROCHYTKA, R.

RIV year

2019

Released

16.07.2018

Publisher

IOP Publishing

Location

United Kingdoms

Book

Construmat 2018

Edition

2018

ISBN

1757-899X

Periodical

IOP Conference Series: Materials Science and Engineering

Volume

385

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

6

Pages count

6

URL

http://iopscience.iop.org/article/10.1088/1757-899X/385/1/012034

Full text in the Digital Library

http://hdl.handle.net/11012/137182

BibTex

@inproceedings{BUT149558,
  author="Jana {Majerová} and Rostislav {Drochytka}",
  title="The influence of the addition of gypsum on some selected properties of lime-metakaolin mortars",
  booktitle="Construmat 2018",
  year="2018",
  series="2018",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="385",
  number="1",
  pages="1--6",
  publisher="IOP Publishing",
  address="United Kingdoms",
  doi="10.1088/1757-899X/385/1/012034",
  url="http://iopscience.iop.org/article/10.1088/1757-899X/385/1/012034"
}

Documents

Majerova_2018_IOP_Conf._Ser.__Mater._Sci._Eng._385_012034