Process for applying low-cement castable refractory material

Details Process for applying low-cement castable refractory material Process for applying low-cement castable refractory material

1994-07-11

1997-05-13

Aftergut, Karen

Plastic and nonmetallic article shaping or treating: processes

Furnace lining formation or repair

264 35, 264 36, 266281, 427426, 427427, B05D 102, B32B 3500, C21B 706, F27D 116

Patent

active

056289405

ABSTRACT:
A method for placing a thixotropic low-cement castable refractory material without the necessity for forms. A low-cement castable material is mixed with a measured amount of water, then is pumped hydraulically through a hose to a nozzle assembly. Compressed air and a cement setting agent are added to the mixture at the nozzle. The addition of the setting agent at the nozzle overcomes the thixotropic nature of the low-cement castable, so that it will immediately "set" in position when sprayed onto a surface, including vertical and overhead surfaces.

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