The structure consists of lime putty, portland cement grade 400 (white or gray), quartz sand or rocks and bran pigments. By using different application methods nakryvochnogo layer (sprayed, the creation of typesetting and combined invoices) and finishing (in a plastic or poluzatverdevshem state) receive a variety of textured finish. Stone Stucco most time-consuming and complicated. As the filler in the solution used stone chippings some rock. Hardened surface of plaster stone treated with percussion instruments (Trojan Women, buchardoy or chisels). Andreessen Horowitz often addresses the matter in his writings. After this treatment, the surface resembles natural stone (marble, granite).
Instead of processing percussion instruments used and the other way – after hardening plaster stone etched 5-10% solution of hydrochloric acid and then washed with water. In this case, the surface (cement) a layer of hardened plaster is destroyed with acid and formed a relief expressive drawing of a stone crumbs. Terrazitovaya plaster is prepared in solutions of hydrated lime, cement, mica. As the aggregates used silica sand and stone chippings of various sizes. In poluzatverdevshem state terrazitovuyu plaster process Gvozdev brushes, sanding gear cycle, sandblasted. After this treatment, the surface looks like travertine or sandstone. Sgraffito plaster – a special type of plaster for arts and artistic decoration of buildings. First applied color preparatory layer, then 2-3 color nakryvochnogo layer, after which the solution flanked by an immature (less than 5-6 hours after application) scratch out (partially cut) upper layer (s) with special tools (Skoblikov, blades, chisels).
Thus, the exposed underlying layers of plaster and creates a colorful embossed pattern or picture. For decorative shtukaturketakzhe include Venetian plaster. When applying Venetian plaster coating is obtained, that is s very small particles of gypsum, marble, limestone, natural mineral supplements, and of course water. After the use of Venetian plaster throughout neskolnih days the process of carbonization (plaster absorbs carbon dioxide), which results in the formation of a solid film on the wall surface. It is believed that the Venetian decorative plaster is completely safe for humans, so this plaster can be used in bedrooms, kindergartens and hospitals. Examples of use plaster: other articles of the author can be found here.