A reinforced liner for cured in place pipe rehabilitation of an existing
pipeline having a plurality of high-strength low-elongation fiber bundles
disposed circumferentially around the tubular liner at both inner and
outer surfaces of a resin absorbent layer of the liner is provided. The
bundles of reinforcing fibers are continuous lengths of high modulus
fibers laid circumferentially with the ability to stretch to accommodate
variations in host pipe diameter. The fibers on the inner surface are
secured to a porous scrim to form an inner tubular reinforcing layer. A
resin absorbent layer is formed into a tube about the inner layer. An
outer layer of bundles of reinforcing fiber are formed into a tube about
the absorbent layer. An outer impermeable tubular layer is wrapped around
the inner layers. The reinforcing layer may include longitudinal
reinforcing fiber in either or both reinforcing layers to increase the
longitudinal strength of the liner.
