Description:

A conformable, swellable polymer/butyl rubber waterstop strip that expands in contact with 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 500S 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 min 100% in cement 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.