Visy Recycling is a New Zealand division of the Australian giant Visy Industries. The parent employs over 9,500 people across 180 facilities worldwide. In 2006 Visy was awarded the joint Auckland and Manukau City Council tender to build, own, and operate the regions new mixed recycling facility.
The $21.9 million dollar facility was the most advanced in the southern hemisphere designed to process up to 120,000 tonnes of recyclables per year. The MRF sorts the mixed recyclables into the various materials i.e. glass. These materials then need to be stored.
Interbloc was chosen as a sub contractor to provide a bulk storage solution. Not only were the blocks cost competitive, there ease of handling ensured a quick build time and very low labour input. As if the cost and speed of install wasn’t enough of a selling point, Interbloc had a further advantage; the blocks are made from recycled concrete, and this was a perfect fit for the project – recycled blocks storing recycled glass.
Visy approached Interbloc with a plan to build four huge glass storage bins with a total cubic meter capacity of 2649m³ capable of storing 3556 tonnes of crushed glass. Interbloc provided 1337 of its 1200mm x 600mm x 600mm blocks to build over 278 lineal meters of wall 3.6m high.
The simplistic design of these one tonne, interlocking concrete blocks, meant construction of the bins took only three weeks with a peak construction crew of four experienced hands. The only equipment required was a 10 tonne excavator and a couple of concrete drills. By choosing Interbloc blocks Visy had immediate access to the bins as they were completed and were able to start storing glass just four days into the construction process.
“Visy was a great job for Interbloc as it show cased the unique capabilities of the blocks – low cost, quick construction, and immediate access to the finished structure” Says Interbloc boss Scott Bright. Stage two of the project is set to commence within the next six months as Visy increases is storage capacity by adding a further bin.