SiO2 percentage in firebrick is about

More Questions from Refractory Technology

• Maximum apparent porosity of magnesite bricks is about __________ percent.
• Mullite is chemically represented by
• Graphite or carbon refractories
• Dilatometer is used for the determination of __________ of refractories.
• The maximum linear expansion of silica bricks during firing is about __________ percent.
• Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the
• Use of higher percentage of lime for bonding silica bricks, reduces their
• Semi-silica bricks compared to silica bricks have
• Rate of slag attack on refractories increases with rise in temperature due to the
• Chrome magnesite brick is not used for lining the

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