Non-slumping, pumpable castable and method of applying the same

Details Non-slumping, pumpable castable and method of applying the same Non-slumping, pumpable castable and method of applying the same

1995-04-12

1996-04-30

Marcantoni, Paul

Coating processes

Spraying

427427, B05D 102

Patent

active

055123252

ABSTRACT:
An essentially non-slumping, high density, low moisture and low cement castable composition, consisting of a tempered, pumpable first component containing the castable solids and consisting essentially of a refractory aggregate, a calcium-aluminate cement, a flow aid, a deflocculating agent, and water, the water being present in the lowest amount sufficient to achieve a pumpable consistency of the tempered first component, and a flocculating agent as a second component to be added to said first component at time of installation in an amount sufficient to give the castable a dried bulk density of at least about 120 pcf. The invention also includes the method of applying such castable through a spray nozzle in which the flocculating agent is added to the tempered first component just prior to its application through a spray nozzle.

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