德国建筑垃圾处理.ppt

Raninger-ICEEE - Tongji University 12/2006 Management and Recycling of Construction Waste in European Countries 欧洲建筑垃圾管理与循环利用 Content 主要内容 Concrete Recyling 混凝土的循环利用 本项研究目的 边缘集料：已存在的循环利用源 对精集料进行循环处理技术仍不发达 新料 粗集料 精集料 水泥 水，等 Concrete Recyling 混凝土的循环利用 Why is recycling of concrete of interest ?循环利用混凝土有什么益处？ 1 m3 /c.a are consumed in Germany 德国每年人均消耗混凝土1 m3 Present rate of reutilization mainly restricted to secondary constructionel measures (backfilling, noise protection dams, etc.) 目前回收利用主要用于二次建筑行为（回填、噪音防控等） Reutilization without degradation requires improved separation of concrete into sand, gravel, and cement 再利用但不降低混凝土的质量就需要提高对混凝土的分类，按沙、砂砾和水泥类别分类 Concrete is well suited for separation into its constituents 混凝土由不同材料组成，非常适合分类成其组元 Microcracks between the aggregates and the cement matrix exist already in the unstressed concrete 未受应力的混凝土中集合体和水泥矩阵之间就已经含有微裂纹 From a chemical point of view the cement fraction is very similar to cement 从化学角度讲水泥组分与水泥相似 Cement clinker has been produced by baking at high temperatures 水泥砖通过高温烘制而成 Concrete Recyling 混凝土的循环利用 Advantages of cement recycling: 水泥回收利用的益处： It saves raw materials节省原材料 Milling of raw materials unnecessary 避免磨制不必要的原材料No de-carbonisation of the milled raw material required (baking process - consumes 80% of energy investment)磨碎的原材料不需要再脱碳（烘制过程需要消耗80%的能源） Reduction of CO2 emission possible (7% of the world wide anthropo-generic CO2 release is due to cement production)降低CO2排放（世界水泥生产造成的CO2占人为CO2排放量的7%） No waste disposal of the cement fraction required 水泥组分不会被浪费地处理掉 CDW Recycling Products from - Concrete - Construction waste Railway sleepers 对混凝土、建筑垃圾、铁路木枕废物的循环利用 Qaulity Assurance of CDW Recycling Products CDW循环利用产品的质量保证　 德国循环建筑材料质量监督协会制定的质量指南以及德国循环质量协会（EQAR）标识 Prof. Dr.-habil. Bernhard Raninger CIM Frankfurt- Germany / Mining University Leoben – Austria 伯恩哈特 蓝宁阁教授博士，德国CIM专家，奥地利里奥本矿业大学 11-12-2006 - Shanghai Forum on CD Wastes 上海“建筑拆迁废物”论坛 东方科技论坛 Eastern Forum on Science and Technology (EFST) - CDW Re