Publication detail

High-strength fluoroanhydrite composition

YAKOVLEV, G. KERIENE, J. GRAKHOV, V. DROCHYTKA, R. GORDINA, A. PICHUGIN, A. BAZHENOV, K.

Original Title

High-strength fluoroanhydrite composition

Type

conference paper

Language

English

Original Abstract

The research studies the properties of a high-strength anhydrite composition based on fluoroanhydrite, a waste product of hydrofluoric acid. To activate fluoranhydrite, Na3PO4 sodium phosphate was added to the composition in an amount of 3% of the mass. The physico-chemical studies of the structure and properties of activated fluoroanhydrite conducted using infrared spectroscopy and X-ray phase analysis showed changes in the composition of the hardened composite, and the study of the fluoroanhydrite microstructure revealed the formation of a denser matrix with the increased strength. An increase in the water resistance of the developed binder matrix was noted. The composition can be used as a cheap substitute for gypsum plaster due to the low prime cost of raw materials, and also contribute to the improvement of the environmental situation in fluoroanhydrite disposal sites.

Keywords

Fluoroanhydrite; activator; sodium phosphate; calcium phosphate; calcium sulfate dehydrate; ultrafine new formations

Authors

YAKOVLEV, G.; KERIENE, J.; GRAKHOV, V.; DROCHYTKA, R.; GORDINA, A.; PICHUGIN, A.; BAZHENOV, K.

Released

17. 5. 2019

Publisher

VILNIUS GEDIMINAS TECHNICAL UNIV PRESS, TECHNIKA

Location

Vilnius, LITHUANIA

ISBN

978-609-476-197-3

Book

13TH INTERNATIONAL CONFERENCE MODERN BUILDING MATERIALS, STRUCTURES AND TECHNIQUES (MBMST 2019)

ISBN

2029-9915

Periodical

Modern Building Materials, Structures and Techniques

State

Republic of Lithuania

Pages from

224

Pages to

229

Pages count

6

URL

https://doi.org/10.3846/mbmst.2019.042

BibTex

@inproceedings{BUT176898,
  author="G.I. {Yakovlev} and Jadvyga {Keriene} and V. N. {Grakhov} and Rostislav {Drochytka} and A. F. {Gordina} and Anatoly {Pichugin} and K.A. {Bazhenov}",
  title="High-strength fluoroanhydrite composition",
  booktitle="13TH INTERNATIONAL CONFERENCE MODERN BUILDING MATERIALS, STRUCTURES AND TECHNIQUES (MBMST 2019)",
  year="2019",
  journal="Modern Building Materials, Structures and Techniques",
  pages="224--229",
  publisher="VILNIUS GEDIMINAS TECHNICAL UNIV PRESS, TECHNIKA",
  address="Vilnius, LITHUANIA",
  doi="10.3846/mbmst.2019.042",
  isbn="978-609-476-197-3",
  issn="2029-9915",
  url="https://doi.org/10.3846/mbmst.2019.042"
}