| 摘要 |
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/cm3 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 DEG to 1100 DEG C for not more than 6 hours. The material is also suitable for conventional firing schedules. |
