Sustainable concrete

We’re growing our use of sustainable processes and materials for projects across the business. We partnered with fellow Fletcher Building company Firth to find ways to further reduce the Global Warming Potential (GWP) of the concrete needed for our projects.

Firth and BPC determined that emissions can be reduced by using recycled water, instead of potable water, for most of the available mixes. They were guided by Firth’s ‘Green Star’ low carbon rules where a minimum of 50% recycled water is required for the mix to qualify as a low carbon concrete mix. Firth estimates saving 20m3 to 25m3 of potable water to date, and the project has further potential to save another 10 – 15 m3.

To find out how we did it, check out the Leadership in Construction page: