Nonfibrous castable refractory concrete having high deflection t

Details Nonfibrous castable refractory concrete having high deflection t Nonfibrous castable refractory concrete having high deflection t

1978-04-20

1979-11-20

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106104, C04B 3502

Patent

active

041749723

ABSTRACT:
A nonfibrous castable refractory concrete, having a deflection temperature under load above 1000.degree. C. and a compressive strength higher than 1450 Newton/cm.sup.2, comprising grains bound by a hydraulic binder and having a content by weight of aluminum expressed as Al.sub.2 O.sub.3 of from 40 to 60%, a content by weight of calcium expressed as CaO of from 4 to 14%, a content by weight of silicon expressed as SiO.sub.2 of from 20 to 60% and a content by weight of fluorine of from 0.1 to 10%, a part of said fluorine being present as alkali or alkaline earth metal fluoride. The invention also provides a process for making said concrete.

REFERENCES:
patent: 3617319 (1971-11-01), Sadran et al.

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