Guha, JP


Characterization of red-burning clays of Zambia, by J.P. Guha, Zambia Journal of Science and Technology, Vol.2, no.3, July 1977, Pg. 11-19.


Red-burning clay samples from two local deposits, namely, Nega-Nega and Kalulushi were beneficiated and the relevant physical properties of the purified clays determined. Both the clays possess several properties favourable for the production of common bricks, hollow blocks and flooring tiles. The only major disadvantage is a high water-absorption value for both the clays at the maximum permissible firing temperature which warrants partial substitution of the parent clays by another low firing clay or a suitable fluxing agent to promote vitrification at a lower firing temperature.

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