temporary shop provided at the site of the installation or at the
manufacturer's plant. A miter guide and portable power saw shall be
used to cut the ends to be joined to insure good alignment and contact
between joined surfaces. Continuity of the characteristic features of
the cross section of the waterstop (ribs, tabular center axis,
protrusions and the like) shall be maintained across the splice.
b. Rubber Waterstops - Splices shall be vulcanized in accordance with
the approved procedure.
c. Polyvinylchloride Waterstops - Splices shall be made by heat
sealing the adjacent surfaces in accordance with the approved
procedure. A thermostatically controlled electrical heat source shall
be used to make all splices. The correct temperature at which splices
should be made will differ with the material concerned but the applied
heat should be sufficient to melt but not char the plastic. Waterstops
shall be reformed at splices with a remolding iron with ribs or
corrugations to match the pattern of the waterstop. The spliced area,
when cooled and bent by hand in as sharp an angle as possible, shall
show no sign of separation.
d. Flexible Metal Waterstop - Splices in copper shall be lap joints
made by the approved brazing procedure. Splices in stainless steel
shall be made by the approved welding procedure. Damaged waterstops
shall be repaired by removing damaged portions and patching. Patches
shall overlap a minimum of 25 mm 1 inch onto undamaged portion of the
waterstop.
e.
Flat Steel Waterstops - Splices shall be welded.
-- End of Section --
SECTION 03151A
Page 10
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