FIELD: facing materials.
SUBSTANCE: tubular facing material is claimed for reinforcing pipelines, used in the method for facing pipelines, during realization of which tubular facing material, having bonding substance applied to its internal surface, is inserted into pipeline, tubular facing material is moved inside the pipeline, and is turned inside out under effect of hydrostatic pressure, by means of that tubular facing material with bonding substance positioned between it and the pipeline is applied to internal surface of pipeline, it contains external layer of impenetrable material and reinforcing internal tubular cover on its internal part, where reinforcing internal tubular cover contains at least two sheets of highly stretch-resistant and/or high module fibers, where sheets with free widths of overlapping on both edges are lapped at least in two locations, and overlapping parts on both edges extend in longitudinal direction of internal tubular cover, and are positioned in diametrically opposite locations, which envelope flattened folds of tubular facing material.
EFFECT: increased strength of composite cover.
16 cl, 3 dwg
