FIELD: technological processes.
SUBSTANCE: invention relates to a crude mixture for producing heat-insulating composite construction materials and can be used to produce articles in the form of plates and blocks for interior finishing of rooms. Crude mixture consists of crushed wood wastes and binder, which is represented by styrene foam wastes dissolved in methylene with industrial chlorine, with the following ratio of components, wt%: ground wood wastes 20.0–38.2, wastes of expanded polystyrene 17.1–25.0, methylene chloride 41.2–60.0. Wood wastes can be sawdust, shavings, chips or bark with different moisture content and particle size. Used foam polystyrene foam can be used waste packaging elements for household appliances and equipment.
EFFECT: higher bending strength and low heat conductivity of heat-insulating material.
1 cl, 1 tbl, 5 ex
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