Refractory Technology
Segar cones are used for the determination of __________ of refractories.

Softening temperature
Resistance to slag attack
Spalling resistance
Electrical conductivity

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Refractory Technology
Tar bonded dolomite bricks

Are used in outer lining of L.D. converters
Are stored under controlled temperature & humidity to avoid hydration
All of these
Have poorer hydration resistance than pitch bonded bricks

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