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首页> 外文会议>Global Symposium on Recycling, Waste Treatment and Clean Technology; 20040926-29; Madrid(ES) >THE EARLY ESTIMATION METHOD FOR CONSTRUCTION WASTES: A METHODOLOGY TO ESTIMATE THE QUANTITY OF CONCRETE AND PLASTIC WASTES AT THE DESIGN STAGE
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THE EARLY ESTIMATION METHOD FOR CONSTRUCTION WASTES: A METHODOLOGY TO ESTIMATE THE QUANTITY OF CONCRETE AND PLASTIC WASTES AT THE DESIGN STAGE

机译：建筑废料的早期估算方法：设计阶段估算混凝土和塑料废料数量的方法

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摘要

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~2, kg/m~2) and the space that houses were dismantled (m~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.
机译：当前，没有已知的方法可以有效地估计建筑垃圾。在这项研究中，我们将展示如何使用建筑蓝图，将建筑垃圾的早期估算方法用于估算建筑垃圾，尤其是混凝土和塑料垃圾。建筑垃圾的早期估算方法是一种在设计阶段估算这些材料排放量的方法。这项研究清楚地表明，这种方法比基于拆除建筑物废料的方法更为有效。为了说明这一点，我们检查了一栋独立房屋和一栋公寓房使用了多少混凝土和塑料。我们计算了每所房屋每平方米建筑面积中每种废物的定量比率（t / m〜2，kg / m〜2）和房屋拆解的空间（m〜2 /年）。我们将这些比率分别定义为混凝土和塑料废物的单位以及损失的房屋空间。然后，我们将损失的房屋空间乘以单位，以估算一年中产生的混凝土和塑料废物量。此外，我们使用ICP-AES分析了混凝土废料，并以铬的含量为例说明了该方法如何起作用。从估算结果发现，根据蓝图计算的混凝土和塑料废物的单位几乎与根据实际废物计算的单位相同。另外还发现，估计的混凝土和塑料废物排放量与统计数据相当。分析结果清楚地表明，由于混凝土废料中的铬含量低于日本土壤标准，因此对于重金属而言，混凝土废料的资源回收或垃圾掩埋对人类而言可能是安全的。这些结果使我们得出这样的结论：早期估计方法可能是一种方便有效的方法来估计混凝土和塑料废物的数量和质量。

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