| 摘要 |
<p>Turning now to figure 1, for repair is shown. In order to repair a pipe (1) having a fracture (3), a patch (10) of absorbent material is impregnated with curable resin and positioned on an inflatable bladder (20). The bladder (20) and patch (10) can then be positioned at the fracture zone (3) where the repair is required. Inflation of the bladder (20) holds the impregnated patch against the walls of the fracture (3) whilst the resin cures to form a rigid watertight layer bonded to the pipe (1). A sheath (40) may be provided around the patch (10). The sheath (40) is removed when the patch (10) is positioned correctly. The resin is supplied in a container (50) having two sections ((51), 52) each containing a separate component of the resin and separated by a sealing (clip 53). Once the clip (53) is removed, the two components can be mixed. The bag (50) is additionally provided with temperature sensing means (60) operable to respond to the temperature of the bag (50) and/or its contents. The user of the resin can thus check the temperature of the resin components using the temperature sensing means (60). This will provide the user with an indication of the curing timescale for the resin and/or the overall life time of the resin.</p> |
