Lining material and pipeline lining method

A pipeline lining method using a flexible tubular lining material impregnated with a thermosetting resin, comprising the steps:

• removably attaching first and second elastic and rigid strip members to respective opposite sides of the flexible tubular lining material, and fixedly attaching a third elastic and rigid strip member to one end of the flexible tubular lining material and to the first and second elastic and rigid strip members;
• drawing or inserting into a pipeline the flexible tubular lining material with the first, second and third elastic and rigid strip members attached thereto;
• removing and extracting the first, second and third elastic and rigid strip members from the flexible tubular lining material while retaining the flexible tubular lining material inside the pipeline;
• and
• subjecting the flexible tubular lining material to pressure to cause it to expand against an inner peripheral surface of the pipeline and heating the flexible tubular lining material to cause the thermosetting resin to be cured.

A lining material for rehabilitating an existing pipeline, the lining material comprising:

• first and second elastic and rigid strip members;
• a flexible tubular body impregnated with a thermosetting resin and interposed between the strip members along the length of the flexible tubular body for imparting elasticity and rigidity to the flexible tubular body while inserting the flexible tubular body into an existing pipeline during a rehabilitating operation;
• and
• a third elastic and rigid strip member directly connected to an end of the flexible tubular body for guiding the flexible tubular body into the existing pipeline during the rehabilitating operation.