深圳綠建智鏈科技有限公司

Bottom ash from incineration of waste can be upcycled into aggregates for making concrete. However, there are several issues with this application, such as the risk of heavy metal leaching, poor dimensional stability, and low strength. To address these challenges, the team modified waste incineration bottom ash and enhanced its properties with carbonation technology before making it into functional artificial aggregates. With their high carbon sequestration rates, effective stabilisation of heavy metal, good dimensional stability, and high strength, functional artificial aggregates make a safe, sound and eco-friendly upcycled material for construction. The company established partnerships with construction companies in both the Mainland and Hong Kong who have expressed positive feedback on the product. The global concrete market is expected to reach a value of USD 1.5 trillion by 2029, presenting significant untapped potential for the widespread application of the product.

Key Team Member(s)

Dr. ZHANG Wei-feng (Department of Civil and Environmental Engineering)

Ir Prof. POON Chi-sun (Department of Civil and Environmental Engineering)

Dr. ZHANG Shi-peng (Department of Civil and Environmental Engineering)