METHOD FOR PRODUCTION OF ORNAMENTAL AND BUILDING ARTICLES BASED ON FOAMED POLYSTYRENE Russian patent published in 2006 - IPC C04B38/08 C04B16/08 B28B1/50 

FIELD: building industry, in particular building materials.

SUBSTANCE: claimed method includes providing polystyrene/concrete mixture by blending of cement, sand, water, foamed polystyrene; formation by vibrocompaction; dismantling of forms and article conditioning. Plasticizer and pigment are additionally introduced into polystyrene/concrete mixture during blending. In formation step precursory vibrocompaction is carried out to produce compacted protective and ornamental cement/sand face layer with thickness not less than 0.3 mm. Then finished vibrocompaction under kentledge is carried out to accomplish desired geometrical sizes. Obtained article is hold in form under kentledge at 15-25°C for 24 h or more, and in total article is hold up to 5 days. Article back surface is heat treated to produce porosity in contact sites due to polystyrene volume contraction up to 10 % in contrast with original one.

EFFECT: article with controlled thickness of compacted protective and ornamental layer.

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