Detail publikačního výsledku

The influence of different starting conditions to the hydrothermal formation of tobermorite - influence of silica source and water-to-solid ratio

GALVÁNKOVÁ, L.; BARTONÍČKOVÁ, E.; OPRAVIL, T.

Originální název

The influence of different starting conditions to the hydrothermal formation of tobermorite - influence of silica source and water-to-solid ratio

Anglický název

The influence of different starting conditions to the hydrothermal formation of tobermorite - influence of silica source and water-to-solid ratio

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

In this study, the influence of different starting materials, especially the silica source was studied. Hydrothermal reactions were performed at 180 °C under saturated steam pressure, while the reaction time was three days and C/S ratio of the starting mixture was set to 0.83. For the synthesis of tobermorite, the crystalline silica source with finer particles is favourable. After three days of reaction using silica sand Dorsilit (d50 = 5.3 µm) and w/s ratio in the range 2–5 ml/g tobermorite is the main detected phase in the samples. When amorphous silica sources (industrially prepared micro silica and self-synthesised SixOyOHz from TEOS) were used as starting materials, other C–S–H phases like gyrolite, hillebrandite and clinotobermorite were prepared.

Anglický abstrakt

In this study, the influence of different starting materials, especially the silica source was studied. Hydrothermal reactions were performed at 180 °C under saturated steam pressure, while the reaction time was three days and C/S ratio of the starting mixture was set to 0.83. For the synthesis of tobermorite, the crystalline silica source with finer particles is favourable. After three days of reaction using silica sand Dorsilit (d50 = 5.3 µm) and w/s ratio in the range 2–5 ml/g tobermorite is the main detected phase in the samples. When amorphous silica sources (industrially prepared micro silica and self-synthesised SixOyOHz from TEOS) were used as starting materials, other C–S–H phases like gyrolite, hillebrandite and clinotobermorite were prepared.

Klíčová slova

silica source, tobermorite, hydrothermal synthesis

Klíčová slova v angličtině

silica source, tobermorite, hydrothermal synthesis

Autoři

GALVÁNKOVÁ, L.; BARTONÍČKOVÁ, E.; OPRAVIL, T.

Rok RIV

2020

Vydáno

16.09.2019

Nakladatel

Research Institute of Binding Materials Prague

Místo

Praha

Kniha

15th International Congress on the Chemistry of Cement (ICCC 2019) Congress proceedings – Papers and Posters Proceedings

Edice

first edition

ISSN

2523-935X

Periodikum

5th International Congress on the Chemistry of Cement (ICCC 2019) Congress proceedings – Papers and Posters Proceedings

Stát

Česká republika

Strany od

1

Strany do

11

Strany počet

11

BibTex

@inproceedings{BUT157476,
  author="Lucie {Dlabajová} and Eva {Bartoníčková} and Tomáš {Opravil}",
  title="The influence of different starting conditions to the hydrothermal formation of tobermorite - influence of silica source and water-to-solid ratio",
  booktitle="15th International Congress on the Chemistry of Cement (ICCC 2019)
Congress proceedings – Papers and Posters Proceedings",
  year="2019",
  series="first edition",
  journal="5th International Congress on the Chemistry of Cement (ICCC 2019)
Congress proceedings – Papers and Posters Proceedings
",
  pages="1--11",
  publisher="Research Institute of Binding Materials Prague",
  address="Praha",
  issn="2523-935X"
}

Dokumenty

The influence of different starting conditions to the hydrothermal formation of tobermorite - influence of silica source and water-to-solid ratio