Gupta, A K and Dan, Tapan Kumar (1994) Development of heat-treated lightweight terra-cotta bodies containing low-grade talc. Research and Industry, 39 (3). pp. 160-164. ISSN 0034-513X

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Abstract

Additives not only improves the required properties in final product like dimensional accuracy, water absorption, mechanical strength, etc. but also contributes to energy conservation (being used as fluxes), insulating properties, act as filler and extender. Keeping this in view, a study on the influence of a additive (low grade talc) on red clay was carried out to develop heat treated light weight bodies by measuring dry and fired properties, when added progressively. The influence of low grade talc additions to plastic red clay is progressively more significant with increase in firing temperatures from 950-degrees to 1100-degrees-C. The impurities present in talc mainly free lime behaves as an inert material at low temperatures (< 950-degrees-C) and then as an opening agent at higher temperatures up to 1050-degrees-C and thus reducing the fired shrinkage to appreciable extent.

Item Type:	Article
Subjects:	Structural Clay Products
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	07 Aug 2013 13:37
Last Modified:	07 Aug 2013 13:37
URI:	http://cgcri.csircentral.net/id/eprint/1972

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