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首页> 外文期刊>International journal of sustainable engineering >Environmental and economic viability of Alkali Activated Material (AAM) comprising slag, fly ash and spent coffee ground
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Environmental and economic viability of Alkali Activated Material (AAM) comprising slag, fly ash and spent coffee ground

机译：碱活性物质（AAM）的环境和经济可行性包括炉渣，粉煤灰和咖啡渣

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摘要

This paper presents a concept of reusing spent coffee ground (CG) as a construction material. Through creating a CG-filled Alkali Activated Material (AAM) with industrial wastes such as fly ash (FA) and slag (S), a strong recycled material was synthesised and found suitable to be used as a road subgrade fill material. Potential groundwater contamination tests were done in accordance to the Australian Standard Leaching Procedure (ASLP). The environmental analysis done on this green material shows that albeit being composed of various industrial wastes and chemicals, CG-filled AAMs in the ground will not cause adverse environmental impacts to surrounding soils and groundwater. Heavy metals and cyanide leached from the AAMs were well below hazardous thresholds. Comparing the carbon footprint of CG, it is found that recycling CG into a construction material would reduce the nett global carbon emission by reducing dependency on quarried material. Cost analyses done on CG-filled AAMs show that these AAMs are expensive to produce relative to traditional construction materials. However, as recycling technology is progressively advancing, in the future the economic value of CG-filled AAM may increase to match those of contemporary construction materials.
机译：本文介绍了作为建筑材料重用废咖啡渣（CG）的概念。通过使用工业废物（如粉煤灰（Fa）和炉渣等工业废物的CG填充的碱活化材料（AAM），合成强循环材料，并发现适合用作道路路基填充材料。根据澳大利亚标准浸出程序（ASLP）进行潜在的地下水污染试验。在这种绿色材料上进行的环境分析表明，虽然由各种工业废物和化学品组成，但地面上的CG充满了AAM不会对周围土壤和地下水产生不利的环境影响。从AAMS浸出的重金属和氰化物均低于危险阈值。比较CG的碳足迹，发现将CG循环到建筑材料中将通过减少对被叫材料的依赖来降低Nett全球碳排放。在CG填充的AAM上完成的成本分析表明，这些AAM相对于传统的建筑材料生产昂贵。然而，随着回收技术逐步推进，将来CG充足的AAM的经济价值可能会增加，以匹配当代建筑材料。

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  • 作者

    Teck-Ang Kua; Monzur Alam lmteaz; Arul Arulrajah; Suksun Horpibulsuk;

  • 作者单位

    Swinburne University of Technology Department of Civil and Construction Engineering Hawthorn Victoria Australia;

    Swinburne University of Technology Department of Civil and Construction Engineering Hawthorn Victoria Australia;

    Swinburne University of Technology Department of Civil and Construction Engineering Hawthorn Victoria Australia;

    School of Civil Engineering and Center of Innovation in Sustainable Infrastructure Development Suranaree University of Technology Nakhon Ratchasima Thailand Department of Civil and Construction Engineering Swinburne University of Technology Hawthorn Victoria Australia;

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  • 正文语种 eng
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  • 关键词

    Alkali Activated Material (AAM); coffee grounds (CG); subgrade; environmental assessment;

    机译：碱活性物质（AAM）;咖啡渣（CG）;路基;环境评估;

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