Publication detail

The influence of barium sulphate and barium carbonate on the Portland cement

ZEZULOVÁ, A. STANĚK, T. OPRAVIL, T.

Original Title

The influence of barium sulphate and barium carbonate on the Portland cement

Type

journal article in Web of Science

Language

English

Original Abstract

Shielding of different types of radiation should be studied these days when there is a great development in the field of nuclear science. Barium ions can shield different type of radiation, therefore, by incorporation of barium ions into the system of Portland clinker, a binder with shielding properties can be made. The work is focused on influence of barium ions on the formation of Portland clinker and its properties. As a source of barium, barium sulphate and barium carbonate were added to raw meal. Clinkers and cements with a different amount of barium were prepared and the effect of barium on the clinker and cement properties respectively was studied. By Rietveld analysis (using X-Ray diffraction) and microscopic point counting method, the ratio of clinker phases was studied. With increasing amount of barium, the alite : belite ratio was decreasing and the amount of free lime was increasing. Sulphate decelerates the decreasing ratio and causes grow of alite crystals to great dimensions. The presence of barium in different phases was observed by SEM with EDS. The highest amount of barium was found in belite and clinker melt. In clinker melt, conglomerations of barium were formed. Furthermore, a difference in formation temperature of clinker phases was observed and some elementary tests were done on prepared cements according to the European standards.

Keywords

Portland clinker; alite; belite; barium oxide; Portland cement; raw meal; barium carbonate; barium sulphate

Authors

ZEZULOVÁ, A.; STANĚK, T.; OPRAVIL, T.

Released

3. 8. 2016

Publisher

Elsevier Ltd.

ISBN

1877-7058

Periodical

Procedia Engineering

Year of study

151

Number

2016

State

Kingdom of the Netherlands

Pages from

42

Pages to

49

Pages count

8

URL

http://www.sciencedirect.com/science/article/pii/S1877705816317465

Full text in the Digital Library

http://hdl.handle.net/11012/70103

BibTex

@article{BUT133426,
  author="Anežka {Zezulová} and Theodor {Staněk} and Tomáš {Opravil}",
  title="The influence of barium sulphate and barium carbonate on the Portland cement",
  journal="Procedia Engineering",
  year="2016",
  volume="151",
  number="2016",
  pages="42--49",
  doi="10.1016/j.proeng.2016.07.358",
  issn="1877-7058",
  url="http://www.sciencedirect.com/science/article/pii/S1877705816317465"
}