FIELD: process and apparatus for manufacturing of glass-bituminous covering which may be used as roofing and/or hydraulically isolating material.
SUBSTANCE: method involves applying bituminous filler by feeding under pressure at both sides of moving web of glass base; passing it through bath with bituminous filler, with double-side covering with film and rolling thereof being provided simultaneously between two calibrating rolls for forced formation of covering layer. Apparatus has two rolls arranged in spaced relation for passage therebetween of glass web base movable in vertical plane, bitumen pump for feeding of bituminous filler onto glass base web, end restricting devices, and tank with cooling liquid.
EFFECT: increased output of glass-bituminous covering at low temperatures and provision for utilization of bitumen-containing wastes.
3 cl, 1 ex
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