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Transactions of the INDIAN CERAMIC SOCIETY   Vol. 59  2000
Development of Glazed Earthenware Wall Tiles through Replacement of Wollastonite in the Body Composition
H. M. Shah and K. N. Maiti
Pages : 109-112
DOI :
Abstract
Traditional minerals namely, calcite and dolomite were substituted for the wollastonite in the standard glazed wall tile body .composition. Test specimens of three compositions incorporating calcite and dolomite along with a standard composition were fabricated by pressing and firing at three different test temperatures, viz., 1000, 1050 and 1100C in an electric furnace. Dry and fired properties of the specimens were determined and compared with those of the standard composition. It was observed that the percent water absorption, fired strength (MOR) and craze resistance of the optimized body composition with complete replacement of wollastonite conformed to the requirements of BIS specification at the test firing temperature of about 1100C with 2 h dwelling time which was, however, slightly higher by 30 to 40 oc than that of the standard wall tile body composition.
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