| 摘要 |
FIELD: heat-insulation materials. ^ SUBSTANCE: nonflammable heat-insulation material is manufactured from woodworking waste and may be employed in industrial and civil construction. Wood particles, in particular sawdust, are mixed with fire retardant is obtained chemically in the course of mixing with wood particles via reaction of nepheline with sulfuric acid. ^ EFFECT: imparted antiseptic properties, reduced power consumption and material expenses. ^ 2 cl, 3 ex |
