| Evaluation and Utilization of Rajpardi Clay in the
Production of Traditional Ceramics :
Part-III : Development of Pressed Low Tension
Insulators through Optimal Utilization of Rajpardi Clays |
R. M. SAVSANI, D. R. VYAS, A. K. CHAKRABORTY AND K. N. MAITI
Pages : 1-8
DOI : 10.1080/0371750X.1998.10804819 |
| Abstract |
| Rajpardi clay was progressively incorporated as replacement
for Bikaner ball clay initially and then with Than plastic clay
in combination with the conventional LT Insulator body
composition. Standard composition consisted of 25% calcined
quartz, 25% potash feldspar, 25% china clay, 15%
Bikaner clay and 10% Than clay. The introduction of
Rajpardi clay in the body mix in replacement of Bikaner ball
and Than fire clays, showed significant changes in the
unfired and fired properties of the body mixes. An incorporation
of 25 mass% of Rajpardi clay in the composition
increased the fired strength from 338 to 378 kg.cm·2 at the
firing temperature of 1250"C, while decreased the water absorption
and apparent porosity. |
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