Currently there are no known methods that will effectively estimate construction wastes. In this study, we will show how the early estimation method for construction wastes can be used to estimate construction wastes, particularly concrete and plastic wastes, using blueprints for houses, The early estimation method for construction wastes is a methodology to estimate the discharge of these materials at the design stage. What this study makes clear is that this method is more valid than the methods based on the wastes from dismantled buildings. To illustrate this, we examined how much concrete and plastics were used for one detached house and one apartment house. We calculated the quantitative ratios of each waste per the floor space for each house (t/m{sup}2, kg/m{sup}2) and the space that houses were dismantled (m{sup}2 /year). We defined these ratios as units of concrete and plastic wastes, and the lost housing space respectively. Then we multiplied the lost housing space by the units to estimate the amounts of concrete and plastic wastes producing in a year. Moreover we analyzed concrete wastes with ICP-AES and examined the content of chromium as an example how the methodology can work. It was found from the results of estimation that units of concrete and plastic wastes calculated from blueprints were almost identical with those calculated from actual wastes. Also it was revealed that the estimated discharging quantities of concrete and plastic wastes were equivalent to the statistical data. The result of the analysis clearly showed that resource recovery or landfill disposal of concrete wastes could be safe for human in respect of heavy metals because the content of chromium in concrete wastes was under the Japanese standard for soil. These results lead us to the conclusion that the early estimation method could be a handy and effective method for estimation of the quantity and the quality of concrete and plastic wastes.
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机译：目前没有已知的方法将有效地估计建设废物。在这项研究中，我们将展示如何利用房屋蓝图来估计建筑废物的早期估计方法，估计建筑废物，特别是混凝土和塑料废物，用于施工废物的早期估计方法是估算这些排放的方法设计阶段的材料。本研究明确的是，这种方法比拆除建筑物的废物的方法更有效。为了说明这一点，我们检查了一个独立式房屋和一个公寓房屋的混凝土和塑料。我们计算每个房屋（T / M {sup} 2，kg / m {sup} 2）的每个垃圾的每个浪费的定量比，以及拆除房屋的空间（m {sup} 2 /年）。我们将这些比率定义为混凝土和塑料废物的单位，以及丢失的房屋空间。然后，我们将失落的房屋空间乘以单位来估计一年内生产的混凝土和塑料废物的量。此外，我们用ICP-AES分析了混凝土废物，并作为示例检查了铬的含量，作为方法如何工作。从估计结果中发现，从蓝图计算的混凝土和塑料废物单元与实际废物计算的单位几乎相同。此外，据透露，估计的混凝土和塑料废物的排出量相当于统计数据。分析结果清楚地表明，在重金属方面，具体废物的资源回收或垃圾填埋场处理可能是安全的，因为混凝土废物中铬的含量下是日本土壤标准。这些结果导致我们得出结论，早期估计方法可能是估计混凝土和塑料废物的数量和质量的便利和有效的方法。
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