As one of the world’s most densely populated cities, Hong Kong faces a significant challenge in carbon emissions from the construction sector, which accounts for over 50% of the city's total emissions. Promoting the green transformation of the construction industry has become critical. Green buildings aim to reduce environmental impact by integrating innovative technologies and sustainable design principles, with the widespread adoption of green building materials.
Prof. Poon Chi-sun, Chair Professor of Sustainable Construction Materials and Head of the Department of Civil and Environmental Engineering, Michael Anson Professor in Civil Engineering and Director of the Research Centre for Resources Engineering towards Carbon Neutrality of the Hong Kong Polytechnic University (PolyU) focuses on converting waste materials, such as construction debris, glass aggregates and incineration ash, into sustainable building materials, thereby reducing carbon emissions and enhancing environmental quality.
Prof. Poon was featured in the TV programme “Carbon Revolution in China” to introduce Eco-blocks, a type of green construction material produced from construction and other waste materials. These blocks utilise advanced recycling technology and are manufactured through low-carbon methods. By grinding recycled glass into powder as a substitute for cement, the production process significantly lowers carbon emissions. In addition, Eco-blocks not only relieve the burden on overloaded landfills, but also address issues related to rainwater accumulation and flooding, as they are capable of absorbing carbon dioxide, contributing to carbon sequestration.
In response to the increasing demand for green design in architecture, Prof. Poon believes that innovation and sustainable development contribute to a healthier environment and improved living conditions. He emphasises the collective responsibility to confront the challenges of climate change, fostering a path towards a more sustainable future.
Interview Replay (In Chinese Only): https://polyu.me/4hIeY99 (3:01 - 4:50) For more:
PolyU Five Projects Awarded Green Tech Fund to Support Environmental Protection in Hong Kong PolyU research: Transformation of waste glass to low-carbon construction materials
