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

C - Chemistry, Metallurgy

04

B

C04B 28/06 (2006.01) B28B 19/00 (2006.01) C04B 14/30 (2006.01) C04B 22/00 (2006.01) C04B 35/66 (2006.01)

Patent

CA 2153289

An essentially non-slumping, high density, low moisture and low cement castable composition, consisting of a tempered, pumpable first component having a density of at least 120 pcf 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 prevent falling or slumping of the castable composition once it has been applied. 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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