Raw PERLITE: When the Crude Perlite is heated rapidly at 900 ºC, it evaporates into its own juice and forms numerous pores on the perlite that expands like corn grains and thermally expands. In this way, the expanded perlite provides excellent heat and sound insulation. Perlite is a name given to naturally occurring silica-based volcanic rocks. The most important feature that separates perlite from other volcanic glass is that it can rise to four to twenty-four times its original volume when heated around the softening temperature. This expansion is attributed to the juice (crystal water) which is between 2-6% in the raw perltit. Perlite is a glassy volcanic rock in varying colors ranging from the shades of gray, which means pearl stone, to galena. This is called raw Perlite. Crude Perlite is widely used in the construction industry because it contains chemical and siliceous and aluminum components in terms of its chemical composition and therefore exhibits hydraulic (puzzolonic) activity by entering into a chemical reaction with calcium-based binders. With this feature, cement is an excellent aggregate that provides economics and durability. Crude Perlite is a natural material that is not expanded by the application of perlite. The raw pearlite is cracked and classified in appropriate sizes. It is then heated to increase the volume of perlite. Special ovens are used for heating raw pearlite. As a result, expanded perlite is ready to be used. Unpaved perlite has various uses: concrete tile production, production of thin and coarse lime, sewerage pipes, roof and terrace waterproofing, swimming pool construction, asphalt filling material for road construction, skating sand on railways and resistance to frost is available. Usage areas: * In the production of plaster and building chemicals * Metallurgy (Casting) Industry