Transactions of the INDIAN CERAMIC SOCIETY Vol. 11 1952
Utilisation of Hyderabad Clays for Making Fireclay
Refractories-Part II.
M. D. Narasimhan
Pages : 118-122
DOI : 10.1080/0371750X.1952.10877570
Abstract
Although the P. C. E. value of Kamthana clay is sufficiently
high, that is con9 32 ( 1700° C) ; this clay alone cannot be used
for making refractories as the pieces made out of the clay do not
have enough mechanical strength and show low spalling resistance.
Addition of Pachgaon clay is therefore recommended. The P. C. E.
value of the mixtures containing 30-50% of f achgaon clay is
1640-1660° C. The spalling resistance for these mixtures is
satisfactory. The use of calcined Kamthana clay is suggested as
this would reduce the shrinkage and the resulting cracking of
the pieces.
