Can you replace up to 30% of cement in precast concrete using a locally produced material without impacting performance?
We are working with kiwi business Aspiring Materials to put that to the test in our precast operations.
We’re trialling their silica as a supplementary cementitious material in our concrete mixes. Together, we are assessing how it performs under genuine production conditions, rather than in a lab.
The material meets NZ, USA and EU standards as a natural pozzolan and has been independently verified for partial cement replacement. It’s produced from olivine (largely mining by-product) using a low-carbon, low-waste process.
The key question that we and the team at Aspiring Materials are trying to answer is whether this can deliver meaningful carbon reduction without introducing complexity into manufacturing or affecting long-term performance. Pending successful validation, this could provide a practical pathway to lower-emissions precast using local materials and processes compatible with existing production frameworks.
This collaboration continues our history of partnering with kiwi innovators to provide our customers with high quality, locally manufactured products.
