Detail publikačního výsledku

Electrokinetic Potential Measurements in SiO2- H2 O System in the Presence of Calcium Sulphate Dihydrate.

FASUROVÁ, N.; HAVLICA, J.

Originální název

Electrokinetic Potential Measurements in SiO2- H2 O System in the Presence of Calcium Sulphate Dihydrate.

Anglický název

Electrokinetic Potential Measurements in SiO2- H2 O System in the Presence of Calcium Sulphate Dihydrate.

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

The aim of the presented work was to study the dependence of the SiO2 sol zeta potential on the contents of calcium chloride. The sol contained 2.27 wt. % of SiO2 and the content of anhydrous CaCl2 varied between 0.126 and 13.0 wt. %. The experiments demonstrated an influence of calcium and chloride ions on the electrokinetic potential. Formation of gels based on calcium-silicate hydrates can be expected with an increasing content of calcium ions in the solution. On the other hand, increasing content of chloride ions brings about a lowering of the pH of the solution, thus slowing down the transport of the silicate components into the solution. These chloride effects are more apparent at higher CaCl2 concentrations. The described phenomenon explains the behaviour of calcium chloride as an additive accelerating the hydration of the silicate components of clinker minerals.

Anglický abstrakt

The aim of the presented work was to study the dependence of the SiO2 sol zeta potential on the contents of calcium chloride. The sol contained 2.27 wt. % of SiO2 and the content of anhydrous CaCl2 varied between 0.126 and 13.0 wt. %. The experiments demonstrated an influence of calcium and chloride ions on the electrokinetic potential. Formation of gels based on calcium-silicate hydrates can be expected with an increasing content of calcium ions in the solution. On the other hand, increasing content of chloride ions brings about a lowering of the pH of the solution, thus slowing down the transport of the silicate components into the solution. These chloride effects are more apparent at higher CaCl2 concentrations. The described phenomenon explains the behaviour of calcium chloride as an additive accelerating the hydration of the silicate components of clinker minerals.

Klíčová slova

sol of silicon dioxide, gelation process, zeta potential, isoelectric point.

Klíčová slova v angličtině

sol of silicon dioxide, gelation process, zeta potential, isoelectric point.

Autoři

FASUROVÁ, N.; HAVLICA, J.

Vydáno

09.06.1999

Nakladatel

Ceramics-Silikáty

Místo

Prague

Edice

1

ISSN

0862-5468

Periodikum

CERAMICS-SILIKATY

Svazek

43

Číslo

2

Stát

Česká republika

Strany od

52

Strany počet

4

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@article{BUT38900,
  author="Naděžda {Fasurová} and Jaromír {Havlica}",
  title="Electrokinetic Potential Measurements in SiO2- H2 O System in the Presence of Calcium Sulphate Dihydrate.",
  journal="CERAMICS-SILIKATY",
  year="1999",
  volume="43",
  number="2",
  pages="4",
  issn="0862-5468"
}