Plastiline™ - Humes
Plastiline™ - Humes
Plastiline™ - Humes
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10 Jointing of precast products<br />
(including pipes) lined with Plastiline to<br />
insitu structures<br />
10.1 Where a product lined with Plastiline is to be joined<br />
to an unlined insitu structure a liner return shall be made as<br />
follows:<br />
The lining is cut off flush with the end of the product and<br />
an end cap is fabricated to cover the end, and form a<br />
50mm (minimum) return on the outside surface.<br />
The end cap is not keyed to the product and plain PVC<br />
sheet is used. The annular shape to cover the end may be<br />
formed from several pieces butted together with a gap less<br />
than 4mm, and may be held in place by an approved<br />
adhesive for welding. Outside corner weld strip is used to<br />
join the annular shape to the lining and to the return. Any<br />
butt joints are sealed with flat welding strip.<br />
10.2 Where a product lined with Plastiline joins a lined<br />
insitu structure the joint shall be constructed by one of the<br />
following methods:<br />
a) Where the product is to be connected after the<br />
insitu structure has been constructed, a hole should be cut<br />
or formed in the structure and the joint made using an<br />
approved method.<br />
The joint protection is then provided by using a piece of<br />
plain sheet with a central hole cut to fit the interior of the<br />
product. This also overlaps the surrounding insitu lining by<br />
50mm (minimum) to 200mm (maximum). The plain sheet<br />
may be made up from several pieces. It is welded to the<br />
product lining using outside corner welding strip and to the<br />
insitu lining using flat welding strip.<br />
b) If the end of the product is to be cast into the insitu<br />
structure the keys on the lining fitted to the inside<br />
formwork should be cut off at the joint position and the<br />
lining trimmed off flush with the end of the product, which<br />
is then placed in position and held against the insitu lining<br />
during the pouring of the structure. After removal of the<br />
formwork the insitu lining is cut away flush with the<br />
interior of the product and welded to the precast product<br />
lining using outside corner strip.<br />
10.3 All field welds, and any repairs carried out in the field<br />
shall be subject to the inspection and testing<br />
specified in Clause 11.<br />
Precast access chamber base with benching.<br />
2100mm Plastiline pipe with an opening for a manhole take off.<br />
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