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首页> 外文期刊>The international journal of pavement engineering >Quantification of the properties of enzyme treated and untreated incinerator bottom ash waste used as road foundation
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Quantification of the properties of enzyme treated and untreated incinerator bottom ash waste used as road foundation

机译：定量处理用作路基的酶处理和未处理的焚烧炉底灰废物的性质

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摘要

A substantial amount of incinerator bottom ash (IBA) waste is generated annually from burning municipal solid waste. IB A is similar to aggregate consisting of ferric metals, non-ferrous metals, brick and tile fragments, ceramic, glass, stone, dirt, etc. In this work, IBA waste was mixed with conventional limestone aggregate in an attempt to achieve a blend with acceptable mechanical properties and minimum environmental risks for use in road foundation layers. Enzyme treatment was applied in order to improve the behaviour of IBA-limestone blends. A series of laboratory tests, such as cyclic triaxial compression tests, pH monitoring and scanning electron microscope, were adopted to determine the materials' mechanistic behaviour and microstructure characteristics. Emphasis was on examining the effect of various parameters, such as IBA content, enzyme content, moisture content and curing time. Results of this study showed that IBA blends gave a favourable performance as road foundation layers in comparison with the control limestone blend. Microstructure and chemical analysis results showed that the addition of plant-based enzyme improved the mechanical properties of the control limestone blend; however, it did not have any noticeable effect on the IBA blends.
机译：每年燃烧城市固体废物产生大量的焚化炉底灰（IBA）废物。 IB A类似于由铁金属，有色金属，砖瓦碎片，陶瓷，玻璃，石材，污垢等组成的骨料。在这项工作中，IBA废料与常规石灰石骨料混合，以实现共混具有可接受的机械性能和最低的环境风险，可用于道路基础层。应用酶处理以改善IBA-石灰石混合物的性能。通过一系列的实验室测试，例如循环三轴压缩测试，pH监测和扫描电子显微镜，来确定材料的机械性能和微观结构特征。重点是检查各种参数的影响，例如IBA含量，酶含量，水分含量和固化时间。这项研究的结果表明，与对照石灰石混合物相比，IBA混合物作为道路基础层具有良好的性能。显微组织和化学分析结果表明，添加植物基酶可改善对照石灰石混合物的机械性能；但是，它对IBA混合物没有任何明显的影响。

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