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首页> 外文会议>International Center for Aggregates Research 5th Annual Symposium Proceedings; Apr 21-23, 1997; Austin, TX >RECYCLED MATERIALS IN ROAD BASES
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RECYCLED MATERIALS IN ROAD BASES

机译：再生材料在路基

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摘要

Large quantities of waste materials are generated in the United States every year. The standard approach for characterizing these materials has been to evaluate them technically but this may not be appropriate since these materials do not always match natural aggregates in technical quality yet may still have a high societal, environmental and economic value. A Waste and Reclaimed Material (WRM) evaluation process was therefore developed which evaluates WRMs based on 1) technical, 2) economic, 3) societal, and 4) environmental aspects. An initial screening process is incorporated which is used to discard WRMs which display a clear lack of utilization potential. The Analytic Hierarchy Process (AHP) from decision analysis theory is used to assign weights to the four evaluation sub-systems and the respective attributes based on their relative importance. The available WRMs were ranked from the highest utilization potential to the lowest using this method. The selected top three WRMs in Texas: reclaimed asphalt and Portland cement concrete and furnace slag, were then subjected to detailed laboratory and economic studies to determine their potential for use in road bases. This paper describes the WRM evaluation system and reports the results of the detailed laboratory testing.
机译：美国每年产生大量废料。表征这些材料的标准方法是对它们进行技术评估，但这可能不合适，因为这些材料的技术质量并不总是与天然骨料匹配，但仍具有很高的社会，环境和经济价值。因此，开发了废物和再生材料（WRM）评估程序，该程序基于1）技术，2）经济，3）社会和4）环境方面来评估WRM。包含了初始筛选过程，该过程用于丢弃明显缺乏利用潜力的WRM。决策分析理论中的层次分析法（AHP）用于为四个评估子系统及其各自的相对重要性分配权重。使用此方法，可用的WRM从最高的利用潜力到最低的利用潜力进行了排名。然后，在德克萨斯州选定的前三名WRM：再生沥青和波特兰水泥混凝土以及炉渣，经过详细的实验室和经济研究，以确定其在路基中的潜力。本文介绍了WRM评估系统，并报告了详细实验室测试的结果。

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