Detail publikačního výsledku

Thaumasite formation by hydration of sulphosilicate clinker

DVOŘÁK, K.; VŠIANSKÝ, D.; GAZDIČ, D.; FRIDRICHOVÁ, M.; VAIČIUKYNIENĖ, D.

Originální název

Thaumasite formation by hydration of sulphosilicate clinker

Anglický název

Thaumasite formation by hydration of sulphosilicate clinker

Druh

Článek WoS

Originální abstrakt

This work was aimed at hydration of ternesite based clinkers at low temperatures, with respect to thaumasite formation. Five clinkers with various compositions corresponding to stoichiometric ratios of elements in thaumasite and ternesite were prepared. Clinker-water suspensions were stored at 5 °C for up to 810 days. X-ray diffraction, DSC/TG, and SEM/EDS were used as the analytical tools. All the clinkers contained ternesite, belite, anhydrite, and free lime. As shown by the results, ternesite and belite preferably hydrate to CSH gels, and sulphate ions forming ternesite become a part of gypsum. The remaining portion of gypsum originated from anhydrite hydration. Gypsum reacted with silica and carbon dioxide to form thaumasite. Thaumasite was clearly identified already after 28 days of hydration.

Anglický abstrakt

This work was aimed at hydration of ternesite based clinkers at low temperatures, with respect to thaumasite formation. Five clinkers with various compositions corresponding to stoichiometric ratios of elements in thaumasite and ternesite were prepared. Clinker-water suspensions were stored at 5 °C for up to 810 days. X-ray diffraction, DSC/TG, and SEM/EDS were used as the analytical tools. All the clinkers contained ternesite, belite, anhydrite, and free lime. As shown by the results, ternesite and belite preferably hydrate to CSH gels, and sulphate ions forming ternesite become a part of gypsum. The remaining portion of gypsum originated from anhydrite hydration. Gypsum reacted with silica and carbon dioxide to form thaumasite. Thaumasite was clearly identified already after 28 days of hydration.

Klíčová slova

Sulphosilicate clinker; Hydration; Ternesite; Thaumasite; Sustainability;

Klíčová slova v angličtině

Sulphosilicate clinker; Hydration; Ternesite; Thaumasite; Sustainability;

Autoři

DVOŘÁK, K.; VŠIANSKÝ, D.; GAZDIČ, D.; FRIDRICHOVÁ, M.; VAIČIUKYNIENĖ, D.

Rok RIV

2021

Vydáno

10.12.2020

Nakladatel

Elsevier

Místo

Nizozemí

ISSN

2352-4928

Periodikum

Materials Today Communications

Svazek

2020

Číslo

25

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

9

Strany počet

9

URL

https://www.sciencedirect.com/science/article/pii/S2352492820324600?via%3Dihub

BibTex

@article{BUT165362,
  author="Karel {Dvořák} and Dalibor {Všianský} and Dominik {Gazdič} and Marcela {Fridrichová} and Danute {Vaičiukynienė}",
  title="Thaumasite formation by hydration of sulphosilicate clinker",
  journal="Materials Today Communications",
  year="2020",
  volume="2020",
  number="25",
  pages="1--9",
  doi="10.1016/j.mtcomm.2020.101449",
  url="https://www.sciencedirect.com/science/article/pii/S2352492820324600?via%3Dihub"
}