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MAJEROVÁ, J DROCHYTKA, R.
Original Title
The influence of the addition of gypsum on some selected properties of lime-metakaolin mortars
Type
conference paper
Language
English
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.
Keywords
Historic mortar, metakaolin, lime, gypsum, ettringite
Authors
MAJEROVÁ, J; DROCHYTKA, R.
Released
16. 7. 2018
Publisher
IOP Publishing
Location
United Kingdoms
ISBN
1757-899X
Periodical
IOP Conference Series: Materials Science and Engineering
Year of study
385
Number
1
State
United Kingdom of Great Britain and Northern Ireland
Pages from
Pages to
6
Pages count
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", issn="1757-899X", url="http://iopscience.iop.org/article/10.1088/1757-899X/385/1/012034" }