|DuraJoint TPER Waterstop
DuraJoint Thermoplastic Elastomer Rubber(TPER) Waterstop is embedded in concrete to prevent leaks in the joints of concrete structures, making it fluidtight. DuraJoint Thermoplastic Elastomer Rubber, used in making waterstop, is a high performance elastomer which combines performance characteristics of vulcanized rubber, such as flexibility and low compression set, with the processing ease of thermoplastics.
Thermoplastic Elastomer Rubber has high temperature resistance equivalent to general purpose SBR and neoprene rubber compounds.
This allows for easier and higher quality field splicing because the TPER Waterstop is heat weldable. The fluid resistance of the TPER waterstop is comparable to general purpose polychloroprene rubber compounds (thermoset rubbers). This unique combination of high temperature and fluid resistance provides a thermoplastic rubber suitable for a broad range of applications.
• Withstands transient temperatures up to 300° F and continuous temperatures to 275° F
• Fluid resistance is similar to polychloroprene for aqueous-based fluids, oils and hydrocarbons
• Low compression and tension set
• Outstanding dynamic fatigue resistance
• Good tear strength
• Excellent ozone and good weathering resistance
• Hot air stability
• Flame retardance
• Enhanced UV stability
Properties of Thermopalstic Rubber (TPER):
||ASTM Test Method
||Test Units SI
||DuraJoint TPER Waterstop
||5 second shore
Fabrication of TPER Waterstop:
Before welding waterstop, cut the waterstop ends with a miter cut and circular saw to make sure there is full contact with the joint.
By doing this it will ensure a complete fluid-tight system. When welding the TPER Waterstop make sure to heat the welding irons to 410° F.
Installation of TPER Waterstop:
When installing, TPER Waterstop should be embedded in the center of the joint and run across the entire length of that joint.
Before the placement of the concrete, make sure that the waterstop is secure to prevent any displacement.
Structures requiring the use of Durajoint are basements, retaining walls, dams, locks, sewage treatment and water treatment plants, storage tanks, water reservoirs, canals, culverts, tunnels, elevator pits, roof and floor slabs, parking decks, bridge decks and abutments - and any other concrete structure requiring tight joints.