Displaying items by tag: Fletcher Building

New Zealand: Fletcher Building subsidiary Golden Bay Cement has co-processed 80,000t of waste in production of its EcoSure reduced-CO₂ general-purpose cement at its Golden Bay, Whangarei, cement plant. The plant has achieved a coal substitution rate of 50%. It has processed various waste streams, including 3 million used tyres. EcoSure cement generates CO₂ emissions of 699kg/t of product, 20% less than its imported alternatives, according to Golden Bay Cement. Fletcher building CEO Nick Traber said that this figure is 'simply our starting point.' The company's next target is to achieve a 30% CO₂ reduction by 2030.

Traber said "We needed to think outside the box, or rather the cement bag, to be more precise. The challenge was around what enhancements we could make to our manufacturing processes at our Golden Bay cement works in to improve the plant's sustainability. We quickly realised that consuming used tyres and wood waste as alternative fuels was a win-win. When we started with the idea in 2015, we were aiming to replace 15% of coal with end-of-life tyres. Fast forward to 2022, and our rate of coal substitution is now at 50%, which has obviously delivered further reductions in carbon emissions, as well as helping to offset increased coal costs."

New Zealand: Golden Bay Cement has commissioned a waste tyre feeding line at its Golden Bay integrated cement plant in Northland. The producer will cut CO₂ emissions by 13,000t/yr by substituting tyres for coal. It will eliminate the 5000t/yr of iron sands used in production and reduce coal use by 15%. The New Zealand government’s Waste Minimisation Fund supplied US$11.2m towards the US$17.5m project.

Government environment minister David Parker told Live News, "This innovative project is a win-win-win for the environment. It reduces a significant waste problem, reuses a valuable resource, and reduces carbon emissions by about 13,000t/yr.” He added that the line, "will divert from landfill or stockpiles about 42% of the estimated 3m waste tyres in Auckland each year. New Zealand needs to address its longstanding problem with waste so we can become the low-waste, low-emissions economy we need to be. "

New Zealand: Fletcher Building has ordered a Hotdisk Combustion device from Denmark’s FLSmidth for installation at its Golden Bay Cement plant in Portland. Once the Hotdisk is operational the plant’s kiln will consume up to 3.1 million shredded tyres per year. Carsten Damslund Jensen, Global Product Line Manager at FLSmidth, said that the company is forecasting the sale of 10 Hotdisk units in 2019. Demand around the world, and especially in China, is driving the growth.