Central Interceptor Team choose to use Recycled Basalt Aggregate

Central Interceptor Team choose to use Recycled Basalt Aggregate

Watercare's Central Interceptor (CI) tunnel will run from Grey Lynn to Māngere. The CI tunnel will collect wastewater from the existing network and take it to the Māngere Wastewater Treatment Plant. This will significantly reduce wastewater overflows in the area. Ghella Abergeldie Joint Venture team are contracted to build the CI project.

Green Vision has supplied Recycled Basalt crushed to GAP65 grade for constructing a temporary road at the CI Western Springs construction site. On this site, a 30-metre deep shaft will be constructed to connect the existing sewer network to the new Central Interceptor tunnel.

The Recycled Basalt material provides the following benefits:

  • Less traffic on the road by choosing a material source close to the construction site.
  • Recycling of basalt also diverts material from landfill.
  • Lowers the carbon impact of aggregate supply*
  • The project pictures show the material delivered to the Western Springs site, installed over geotextiles and the aggregate surface after compaction.

* Based on information from our Recycled Crushed Concrete Environmental Product Declaration (EPD), which reduces the carbon footprint by 75%. Recycled Basalt should achieve the same carbon reduction in theory.

Thanks again to the Ghella Abergeldie Joint Venture team who chose Green Vision recycled aggregate products.

Please contact Green Vision if you have basalt available for recycling to see what options we have available.

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