Detail publikačního výsledku

The influence of supplementary cementitious materials on the hydration of Dyckerhoff G-Oil cement

PALOU, M.; NOVOTNÝ, R.; KUZIELOVA, E.; ŽEMLIČKA, M.; ČEPČIANSKA, J.; PODHORSKA, J.

Original Title

The influence of supplementary cementitious materials on the hydration of Dyckerhoff G-Oil cement

English Title

The influence of supplementary cementitious materials on the hydration of Dyckerhoff G-Oil cement

Type

WoS Article

Original Abstract

The kinetics of early hydration reactions of Dyckerhoff G-oil cement and its blends using conduction calorimeter and thermogravimetric analysis are reported in the present paper. The coupling effect of temperature (25, 40, 50, 60, 80 degrees C) and material composition (100, 95, 90, 85, 80, 75, 70, 65% Dyckerhoff) with different substitution levels by blast slag furnace, metakaolin and limestone were analyzed on the light of hydration products and activation energy of different reactions. Besides the initial peak in the first 10 min of hydration, two or more other particular peaks characterizing the sequence of successive hydration reactions of the cement are observed, the intensities and the time position of which depend on the temperatures and on the composition of the materials. The apparent activation energies calculated from the hydration peaks characterizing the different reactions decrease with the increase in the substitution levels, but that of the second peaks (31.95 to 33.31 kJ mol(-1)) is higher than that of the former (27.88 to 31.33 kJ mol(-1)) at the same level of substitution. Thermogravimetric analysis of the samples after calorimetric measurement shows that the main hydration products are C-S-H, C-A-S-H, CH, and calcium carbonate. Their quantity depends on the material composition of the material and the temperatures of hydration.

English abstract

The kinetics of early hydration reactions of Dyckerhoff G-oil cement and its blends using conduction calorimeter and thermogravimetric analysis are reported in the present paper. The coupling effect of temperature (25, 40, 50, 60, 80 degrees C) and material composition (100, 95, 90, 85, 80, 75, 70, 65% Dyckerhoff) with different substitution levels by blast slag furnace, metakaolin and limestone were analyzed on the light of hydration products and activation energy of different reactions. Besides the initial peak in the first 10 min of hydration, two or more other particular peaks characterizing the sequence of successive hydration reactions of the cement are observed, the intensities and the time position of which depend on the temperatures and on the composition of the materials. The apparent activation energies calculated from the hydration peaks characterizing the different reactions decrease with the increase in the substitution levels, but that of the second peaks (31.95 to 33.31 kJ mol(-1)) is higher than that of the former (27.88 to 31.33 kJ mol(-1)) at the same level of substitution. Thermogravimetric analysis of the samples after calorimetric measurement shows that the main hydration products are C-S-H, C-A-S-H, CH, and calcium carbonate. Their quantity depends on the material composition of the material and the temperatures of hydration.

Keywords

Temperature; Material composition; Kinetics; Hydration products; CaO; SiO2; Al2O3; Fe2O3; H2O

Key words in English

Temperature; Material composition; Kinetics; Hydration products; CaO; SiO2; Al2O3; Fe2O3; H2O

Authors

PALOU, M.; NOVOTNÝ, R.; KUZIELOVA, E.; ŽEMLIČKA, M.; ČEPČIANSKA, J.; PODHORSKA, J.

RIV year

2023

Released

28.06.2022

Publisher

SPRINGER

Location

DORDRECHT

ISBN

1388-6150

Periodical

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY

Volume

147

Number

18

State

Hungary

Pages from

9935

Pages to

9948

Pages count

14

URL

Full text in the Digital Library

BibTex

@article{BUT178883,
  author="Martin {Palou} and Radoslav {Novotný} and Eva {Kuzielova} and Matúš {Žemlička} and Jana {Čepčianska} and Janette {Podhorska}",
  title="The influence of supplementary cementitious materials on the hydration of Dyckerhoff G-Oil cement",
  journal="JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY",
  year="2022",
  volume="147",
  number="18",
  pages="9935--9948",
  doi="10.1007/s10973-022-11444-y",
  issn="1388-6150",
  url="https://link.springer.com/article/10.1007/s10973-022-11444-y"
}