Publication detail

Early and middle stages of multicomponent cement hydration under the effect of geothermal water and increased temperatures

KUZIELOVA, E. TATARKO, M. SLANÝ, M. ŽEMLIČKA, M. MÁSILKO, J. NOVOTNÝ, R. PALOU, M.

Original Title

Early and middle stages of multicomponent cement hydration under the effect of geothermal water and increased temperatures

Type

journal article in Web of Science

Language

English

Original Abstract

The study of early and middle stages of hydration in the systems composed of Portland cement Class G (PC) - silica fume (SF) - metakaolin (MK) and PC - SF - blast furnace slag (BFS) was performed by Isothermal calorimetry, Thermogravimetric, X-ray diffraction, and Fourier Transform Infrared analyses in the mid-IR region. The influence of composition, temperature (25, 60, and 80 degrees C), and hydration media (water and geothermal solution) was investigated. Geothermal solution delayed main hydration, however, considering the times of the calorimetric maxima at 25 degrees C, it led to the formation of hydration products with more polymerized structures in larger amounts than during the hydration process using water. At higher temperatures, the deceleration effect of the geothermal solution became less evident, nevertheless higher degree of silica polymerization and more hydration products were found in samples that were hydrated in water. Regardless of the hydration temperature, the hydration carried out in geothermal solution became more effective already after 40 h. The effect of fine additives advanced by higher temperatures resulted in accelerated hydration represented by faster depletion of gypsum. The presence of SO4-AFm and CO3-AFm phases was confirmed during the deceleration period of the hydration process using water and geothermal solution, respectively.

Keywords

Early and middle stage of hydration; Silica fume; Metakaolin; Ground granulated blast -furnace slag; Geothermal water

Authors

KUZIELOVA, E.; TATARKO, M.; SLANÝ, M.; ŽEMLIČKA, M.; MÁSILKO, J.; NOVOTNÝ, R.; PALOU, M.

Released

10. 2. 2023

Publisher

PERGAMON-ELSEVIER SCIENCE LTD

Location

OXFORD

ISBN

0375-6505

Periodical

GEOTHERMICS

Year of study

108

Number

únor

State

United Kingdom of Great Britain and Northern Ireland

Pages count

13

URL

https://www.sciencedirect.com/science/article/pii/S0375650522002772

BibTex

@article{BUT181477,
  author="Eva {Kuzielova} and Miroslav {Tatarko} and Michal {Slaný} and Matúš {Žemlička} and Jiří {Másilko} and Radoslav {Novotný} and Martin {Palou}",
  title="Early and middle stages of multicomponent cement hydration under the effect of geothermal water and increased temperatures",
  journal="GEOTHERMICS",
  year="2023",
  volume="108",
  number="únor",
  pages="13",
  doi="10.1016/j.geothermics.2022.102632",
  issn="0375-6505",
  url="https://www.sciencedirect.com/science/article/pii/S0375650522002772"
}