According to the statistics of the Industrial Waste Reporting and Management Information System of the Environmental Protection Agency of the Executive Yuan, the inorganic resources produced in my country every year include fly ash bottom slag, furnace slag, waste water and water purification sludge, refractory/clay building materials and others. Eight categories, including ceramic products, glass and its products, civil engineering and construction waste, product manufacturing waste and other non-metallic mineral products, exceeded 18 million tons. After stabilization and productization of these inorganic resources, their properties are no less than that of natural pellets, and a number of resources have even been successfully introduced into construction projects. The annual demand for aggregates for construction projects is about 37 million tons, which are mainly used for asphalt concrete, ready-mixed concrete, controlled low-strength backfill materials, cement products, cement and brick products, and most of them are concentrated in controlled low-strength backfill materials , other miscellaneous non-metallic mineral products, other unlisted cement products and other items. Through the survey of usage and demand, there is a huge gap between the supply and demand of resources in my country, and inorganic resources should have the potential to be recycled. In addition to the inventory of inorganic recycled pellets and aggregate projects, types and output, the other work results of this year are summarized as follows： 1. Develop an integrated management mechanism for the recycling of inorganic recycled aggregate in construction projects, including inventory or estimation of inorganic recycled aggregate projects, types and output, and to develop the selection principles and integrated management scope of inorganic recycled aggregate in this project. Research and analyze the key issues of the integrated management of inorganic recycled aggregate, and develop an integrated management mechanism, including the trend of changes in types and supply and demand, and the factors that affect the adjustment of key projects for recycling, and make a blueprint for promoting the recycling of inorganic recycled aggregate in construction projects. 2. Assemble the reporting information and related statistical reports of the production and use of inorganic recycled pellets and aggregate in construction projects in my country, and according to the needs of the integrated management mechanism, develop advanced measures, and analyze the structure, projects, and reporting systems for waste cleaning or reuse. Programs and related statistical reports to discuss the applicability of each data in the integrated management of the recycling of inorganic regenerated pellets. 3. Inventory the pellet quality specification projects and related laws and regulations for the recycling of inorganic recycled pellets and aggregate in construction projects, including environmental regulations, CNS national standards, construction specifications, user manuals, etc., and cooperate with the inorganic recycled pellets and aggregate and construction projects of this project. In the discussion area, the revision of pellet standards will be researched to improve the quality of inorganic recycled pellets and aggregate, so as to facilitate the subsequent promotion and application of suitable materials. 4. Organize four research discussions or seminars to evaluate the key issues of multiple cycles of inorganic recycled pellets and aggregate and construction cycles, and to review the applicability of establishing an integrated management mechanism.

Inorganic recycled materials and aggregate, Construction circulation, Management Strategy