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Linking Lake Ontario to Lake Erie, The Welland Canal cuts 42 km across Canada’s Niagara Peninsula from Port Colborne to Port Weller. A series of eight locks lift and lower vessels 100 meters and enables maritime commerce to bypass Niagara Falls.
Located adjacent to Lock 2, the St. Lawrence Seaway Bridge is also named as route 83 or Carlton Street. The length of the structure is 80 meter and it is supported by a total of five spans.
The flexible plug expansion joint system, TENSA-POLYFLEX-ADVANCED PU, is a complete new development based on elastic polymers and a further development of the traditional asphaltic plug joint, whereby disadvantages of the traditional bituminous plug joint (e. g. debonding, plastic deformation, rutting, overload due to standing traffic, etc.) can be eliminated and i increasing the durability greatly.
Installation of the TENSA®POLYFLEX® Advanced PU flexible plug expansion joints expansion joint and support ribs
Filling of cut slots with polymer concrete to form the asphalt-strengthening ribs – and placing of a polymer concrete subbase within the recess as required
TENSA®POLYFLEX® Advanced PU flexible plug expansion joints type PA30
+20/-10 mm movement, support ribs
St. Lawrence Seaway