Publication detail

An influence of geothermal water, temperature and pressure on the hydration of multicomponent cement binders

KUZIELOVA, E. SLANÝ, M. KOPLÍK, J. MÁSILKO, J. FRIČOVÁ, O.

Original Title

An influence of geothermal water, temperature and pressure on the hydration of multicomponent cement binders

Type

journal article in Web of Science

Language

English

Original Abstract

Cement pastes of different compositions were hydrated in a geothermal solution with the simultaneous action of high temperature (150 °C) and pressure (18 MPa) for 7 days. The influence of solution on phase composition and compressive strength of pastes was investigated based on the comparison with hydration in water and using TGA, XRD, FTIR, 29Si, and 27Al NMR. The geothermal solution accelerated hydration and pozzolanic reactions. A higher amount of more thermally stable products was formed. Undesired transformation to crystalline α-C2SH in the samples with the highest C/S ratio was restricted. The uptake of carbonates from the solution led to an increased amount of calcite. As a result, increased compressive strength values were determined. Preferential incorporation of Al3+ into the structure of C-(A-)S-H or hydrogrossular phases depended on the composition of cement pastes.

Keywords

Hydrothermal conditions; Silica fume; Metakaolin; Ground granulated blast-furnace slag; Geothermal water

Authors

KUZIELOVA, E.; SLANÝ, M.; KOPLÍK, J.; MÁSILKO, J.; FRIČOVÁ, O.

Released

30. 8. 2024

Publisher

PERGAMON-ELSEVIER SCIENCE LTD

Location

OXFORD, ENGLAND

ISBN

0375-6505

Periodical

GEOTHERMICS

Number

125

State

United Kingdom of Great Britain and Northern Ireland

Pages count

11

URL

https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0375650524002426?via%3Dihub#fig0006

BibTex

@article{BUT193980,
  author="Eva {Kuzielova} and Michal {Slaný} and Jan {Koplík} and Jiří {Másilko} and Oľga {Fričová}",
  title="An influence of geothermal water, temperature and pressure on the hydration of multicomponent cement binders",
  journal="GEOTHERMICS",
  year="2024",
  number="125",
  pages="11",
  doi="10.1016/j.geothermics.2024.103156",
  issn="0375-6505",
  url="https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0375650524002426?via%3Dihub#fig0006"
}