Description:

A conformable, swellable polymer/butyl rubber waterstop strip that expands in contact with saline and brackish water. When fully encapsulated by poured concrete, the expansive forces form a seal against concrete faces. The seal resists hydrostatic pressure, stopping water from entering sub-structures.

ADCOR is a unique product that has been specifically developed to provide higher performance than conventional bentonite or swellable rubber waterstops. Superior performance arises from:

• controlled, reproducible, volumetric expansion.
• cohesive strength maintained after volumetric expansion.
• malleable and plastic, enabling easy application to a variety of concrete profiles.

GCP can also uniquely provide continuity of swellable waterstops at construction joint/movement joint intersections. This is achieved by linking ADCOR 500T with SERVITITE AT 200 co-extruded hydrophilic/PVC waterstops.

Uses:

•  Construction joints in in-situ concrete structures.
•  Casting new concrete against existing.
•  Floor slabs cast against diaphragm retaining walls, steel sheet piles and secant piled walls.
•  Joints between floor slabs and pile caps.
•  Pipe penetrations through floors and walls.
•  Remedial ‘breaking out’ of concrete.

Advantages:

•  Controlled volumetric expansion – reduces risk of concrete spalling.
•  Conformable – can be installed onto a variety of irregular substrates.
•  Retains cohesive strength at both original and expanded volume.
•  No need for protective steel mesh.
•  Resists at least 6 bar (60 m) hydrostatic pressure.
•  Volumetric expansion over 140% in 8% salted water.
•  Simple overlap jointing on site.
•  Reproducible swell after wet – dry cycling.
•  Can be easily joined to GCP PVC waterstops at movement joints.
•  Unaffected by freeze/thaw cycling.