Detail publikace

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.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

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

Autoři

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

Vydáno

30. 8. 2024

Nakladatel

PERGAMON-ELSEVIER SCIENCE LTD

Místo

OXFORD, ENGLAND

ISSN

0375-6505

Periodikum

GEOTHERMICS

Číslo

125

Stát

Spojené království Velké Británie a Severního Irska

Strany počet

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"
}