Compositions – Fire retarding
Patent
1986-04-07
1988-06-14
Lechert, Jr., Stephen J.
Compositions
Fire retarding
106 1811, 106 90, 106 93, 106 97, 106 99, 106109, 106111, 106114, 106115, 252602, 252 62, 428402, 428404, 428407, 428920, 428921, C09K 2100, E04B 174, B27N 900, C04B 2400
Patent
active
047510242
ABSTRACT:
Fireproofing compositions for steel structural members are provided. The compositions comprise a hydratable cementitious binder, shredded polystyrene aggregate, an air entraining agent, and a fibrous material. On addition of water, the compositions form settable, sprayable slurries which can be pumped to the point of application. The slurries are capable of spray application to steel structural members and adhere to the member in the slurried state and after setting. Excellent fire and heat protection is provided to the member despite the organic nature of the polystyrene aggregate.
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Payment Walter R.
Shu Larry S.
Baker William L.
Lechert Jr. Stephen J.
Locker Howard J.
W. R. Grace & Co.
Wasatonic John J.
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