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A method for determining buildings' material composition prior to demolition

机译：在拆除之前确定建筑物材料成分的方法

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摘要

A prerequisite of the efficient recycling of demolition waste and its evaluation in terms of the material specific recycling rates is information on the composition of the building material stock (as the source of future demolition waste). A practical method is presented that characterizes the material composition of buildings prior to their demolition. The characterization method is based on the analysis of available construction documents and different approaches of on-site investigation. The method is tested in different buildings and the results from four case studies indicate that the documents are useful to quantify bulk materials (e.g. bricks, concrete, sand/gravel, iron/steel and timber). However, on-site investigations are necessary to locate and determine the trace materials such as metals (e.g. copper and aluminium), or different types of plastics. The overall material intensity of the investigated buildings ranges from 270 to 470kg/m(3) gross volume. With ongoing surveys about the composition of different buildings, the collected data will be used to establish a building-specific database about the amount of materials contained in Vienna's building stock.
机译：有效拆卸建筑垃圾的前提条件以及根据特定材料的回收率进行评估的前提条件是有关建筑材料库存（作为未来拆卸垃圾的来源）组成的信息。提出了一种实用的方法，用于表征建筑物在拆除之前的材料成分。表征方法基于对可用施工文件的分析和不同的现场调查方法。该方法在不同的建筑物中进行了测试，四个案例研究的结果表明，这些文档可用于量化散装材料（例如，砖，混凝土，沙子/碎石，铁/钢和木材）。但是，必须进行现场调查以找到和确定痕量材料，例如金属（例如铜和铝）或不同类型的塑料。被调查建筑物的整体材料强度范围为270至470kg / m（3）总体积。通过对不同建筑物的组成进行的持续调查，收集的数据将用于建立特定建筑物的数据库，以了解维也纳建筑物库存中所含材料的数量。

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