Ceramic composition for making stoneware products

Details Ceramic composition for making stoneware products Ceramic composition for making stoneware products

1976-07-08

1978-10-10

Vertiz, O. R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 71, 106120, C04B 3300, C04B 3313

Patent

active

041194705

ABSTRACT:
A ceramic composition capable of quick firing to form a stoneware product. The composition contains water, a clay component and a lime component. The clay component is a conventional stoneware clay. The lime component is a hydrothermally cured, highly porous lime-sand product having a major proportion of spherical pores. The lime-sand product can be a conventional lightweight cellular concrete product having a density of 0.4 to 0.8 g/cm.sup.3 and is preferably waste product resulting from the manufacture of lightweight concrete products. The composition is made by grinding the clay and lime-sand product, forming an aqueous slurry of the ground material, drying the slurry, and granulating the dried material. The granulated composition is utilized by pressing to shape, drying, and firing at a temperature of 900.degree. to 1100.degree. C for not more than 6 hours. The material is also suitable for conventional firing schedules.

REFERENCES:
patent: 968379 (1910-08-01), Marsden
patent: 3030218 (1962-04-01), Robinson
patent: 3690904 (1972-09-01), Spangler

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