Waterview Tunnel Location: Auckland, New Zealand Country: New Zealand Project Type: Civil / Infrastructure | Roading Project Scale: 0 – 5,000 m² CONQOR 47B controlled expansion waterstop at work in the Waterview tunnel, Auckland, NZ. CONQOR 47B is a unique sealing gasket that expands in a controlled fashion when exposed to moisture, forming a compression seal in concrete joints. Concrete Products & Solutions used. These related products and concrete solutions were used to protect the concrete of this project. CONQOR 47B | WATERSTOP GASKET Let us keep you Updated. Subscribe to MAKING CONCRETE BETTER email updates to receive our latest content, plus news and views from the world of concrete. Subscribe