Silica Fume

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Description

GNPGraystar’s Silica Fume is an undensified, amorphous ligh gray silicon dioxide powder with low impurity levels and a constant pH.

Diese Materialdaten wurden von GNPGraystar Specialty Materials zur Verfügung gestellt

Alle Daten beziehen sich auf Raumtemperatur soweit nicht anderweitig spezifiziert. SI Einheiten werden verwendt soweit nicht anderweitig spezifiziert.
Äquivalente Standards sind ähnlich zu einem oder mehreren Standards die der Anbieter angegeben hat. Manche äquivalente Standards können strikter sein oder außerhalb der Bedingungen des ursprünglichen Standards.

Ashby charts

Eigenschaften

Allgemein

PropertyValueComment

Loss on Ignition

1.7 %

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max. (970°C/1 hrs)

Schüttdichte

0.304 g/cm³

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Spezifische Oberfläche

20.5 m²/g

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BET

Water content

0.3 %

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pH-Wert

7.5 [-]

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Chemical properties

PropertyValueComment

Aluminium

0.11

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Al₂O₃

Chlor

0.0095

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Eisen

0.08

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Fe₂O₃

Kalium

0.38

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K₂O

Kalzium

0.42

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max. CaO

Kohlenstoff

1.1 %

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free carbon

Magnesium

0.29 %

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Natrium

0.06 %

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Na₂O

Schwefel

0.01 %

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SO₂

Silizium

0.12 %

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free silicon

96 %

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SiO₂

Technological properties

Property
Application areas

GNPGraystar’s Silica Fume is perfect for use in refractory castables, including low and medium cement, vibratables, and self-flow castables. Use of Silica Fume improves the mechanical properties (MOR, CCS, creep,etc.) of castables by acting as a flow agent of water required to place refractory castable mix.

Other

> 45 microns: 2.2 %

Brightness: 47