Publication detail

Influence of Barium Oxide Additions on Portland Clinker

ZEZULOVÁ, A. STANĚK, T. OPRAVIL, T.

Original Title

Influence of Barium Oxide Additions on Portland Clinker

Type

journal article in Web of Science

Language

English

Original Abstract

Nowadays, nuclear power plants are widespread around the world and research is of great interest. Together with nuclear research, shielding of different types of radiation is an important current topic of research aiming at their safety. Portland cement has been an elementary building material for centuries. Since barium is very efficient in shielding different types of radiation, it can be assumed that the radiation shielding capability of cement can be improved by incorporation of barium. This work deals with the influence of barium oxide, added in the form of barium carbonate and sulphate, on the formation and properties of Portland clinker. The structure of burnt clinkers and the ratio of clinker phases were studied by polarizing microscopy and by X-ray diffraction. With increasing barium content, the alite-belite ratio decreases and the content of free lime gradually increases. Moreover, sulphates induce the growth of alite crystals. The ability of barium to be a part of the clinker minerals was observed by scanning electron microscopy. Belite and clinker melt contain the highest amount of barium, but aggregates of barium oxide are formed in the clinker melt. Furthermore, the rate of alite crystallization was studied under isothermal conditions.

Keywords

Alite, Belite, Barium content determination, Portland cement, Raw meal

Authors

ZEZULOVÁ, A.; STANĚK, T.; OPRAVIL, T.

Released

2. 1. 2017

Publisher

Institute of Rock Structure and Mechanics of The Czech Academy of Sciences, v. v. i.

ISBN

1804-5847

Periodical

CERAMICS-SILIKATY

Year of study

61

Number

1

State

Czech Republic

Pages from

20

Pages to

25

Pages count

6

URL

http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=783

Full text in the Digital Library

http://hdl.handle.net/11012/70102

BibTex

@article{BUT133450,
  author="Anežka {Zezulová} and Theodor {Staněk} and Tomáš {Opravil}",
  title="Influence of Barium Oxide Additions on Portland Clinker",
  journal="CERAMICS-SILIKATY",
  year="2017",
  volume="61",
  number="1",
  pages="20--25",
  doi="10.13168/cs.2016.0055",
  issn="1804-5847",
  url="
      http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=783
"
}