中交四航局举办建筑垃圾资源化利用现场会

Core Viewpoint - The event showcased the successful application of on-site resource utilization of construction waste in the Pearl River Village project, emphasizing the importance of innovative technologies in urban construction waste management [1][2]. Group 1: Technology and Innovation - The core of the technology presented is the self-developed "modified adhesive material," which is created from various natural and artificial inorganic mineral raw materials, enhancing the reactivity between soil particles [1]. - The modified solidified soil can be pumped and directly poured into the filling trench, allowing for seamless integration and eliminating the risk of ground subsidence associated with traditional backfilling methods [1][2]. Group 2: Environmental Impact - The new process achieves up to 80% carbon reduction compared to traditional cement backfilling, significantly decreasing traffic congestion and dust pollution caused by the transportation of construction waste [2]. - The project successfully utilized 12,000 cubic meters of waste soil on-site, achieving a balance between excavation and filling [2]. Group 3: Cost and Efficiency - The new method reduced overall costs by 20%-30% by saving on soil transportation and purchasing, as well as labor and machinery costs [2]. - The use of mechanized pumping instead of manual and mechanical layer compaction shortened the backfilling period by approximately 50%, optimizing the construction site for subsequent processes [2]. Group 4: Policy and Future Development - The Guangzhou Municipal Bureau of Urban Management and Comprehensive Law Enforcement plans to strengthen collaboration among departments to promote the resource utilization of construction waste, aiming for high-quality development in this sector [3]. - The event was organized by multiple associations and companies, indicating a collaborative effort to advance the technology and practices in construction waste management [3].