C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 38/10 (2006.01) E04C 2/288 (2006.01)
Patent
CA 2547231
A super lightweight ceramic panel for a non-bearing wall utilizing an expandable clay mineral and a process for preparing the same are provided. The super lightweight ceramic panel is comprised of a clay composition containing 90 to 98% by weight of an expandable clay mineral, 1.5 to 5% by weight of a flux (glass), and 0.5 to 5% by weight of silicon carbide, and is prepared by mixing and pressing the clay composition, followed by firing at a temperature of 1100 to 1200°C. The super lightweight ceramic panel in accordance with the present invention is a material having a light weight and exhibiting improvement in physical properties such as water resistance, flame retardancy, heat insulation and rigidity, via formation of closed pores inside the ceramic material.
L'invention porte sur un panneau en céramique super léger destiné à un mur non porteur, que l'on fabrique au moyen d'un minéral argileux expansible, et sur un procédé de préparation dudit panneau. Le panneau en céramique super léger de l'invention comprend une composition d'argile contenant de 90 à 98 % en poids d'un minéral argileux expansible, de 1,5 à 5 % en poids d'un fondant (verre), et de 0,5 à 5 % en poids d'un carbure de silicium, et on le prépare en mélangeant et en comprimant la composition d'argile, que l'on cuit ensuite à une température comprise entre 1100 et 1200 °C. Le panneau en céramique super léger de l'invention constitue un matériau léger aux propriétés physiques améliorées, par exemple la résistance à l'eau, l'ininflammabilité, l'isolation thermique et la rigidité, grâce à la formation de pores fermés à l'intérieur du matériau céramique.
Lg Chem Ltd.
Osler Hoskin & Harcourt Llp
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