“纸板+土壤”制成低碳建材

Core Insights - Australian scientists have developed an eco-friendly building material called "cardboard-reinforced rammed earth," which consists of only cardboard, water, and soil. This material has a carbon footprint approximately one-fourth that of concrete and is reusable and recyclable, providing a new pathway for sustainable development in the construction industry [1] Group 1: Environmental Impact - Over 2.2 million tons of cardboard and paper are sent to landfills in Australia each year [1] - Global carbon emissions from cement and concrete production account for about 8% of annual emissions [1] - The new material's carbon footprint is significantly lower than that of traditional concrete, making it a more sustainable option [1] Group 2: Material Properties and Cost - The innovative cardboard-reinforced rammed earth completely eliminates the need for cement, reducing costs by over two-thirds [1] - The construction process is simplified, requiring only the mixing of soil and water on-site, which reduces the need for heavy transportation of bricks, steel, or concrete [1] - Cardboard is lightweight and readily available, which significantly lowers transportation costs and simplifies the construction process [1] Group 3: Future Implications - This innovation has the potential to reshape building design and construction methods, promoting the convenient use and recycling of local materials [1] - In a related study, the research team combined carbon fiber with rammed earth to create a composite material with strength comparable to high-performance concrete [1]