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含高再生沥青和钢渣的可持续沥青混合料的特性研究

Characterization of Sustainable Asphalt Mixtures Containing High Reclaimed Asphalt and Steel Slag.

作者信息

Georgiou Panos, Loizos Andreas

机构信息

Laboratory of Pavement Engineering, National Technical University of Athens (NTUA), 9 Iroon Polytechniou Str., 15780 Zografou, Greece.

出版信息

Materials (Basel). 2021 Aug 30;14(17):4938. doi: 10.3390/ma14174938.

DOI:10.3390/ma14174938
PMID:34501028
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8434263/
Abstract

Policymakers are implementing the transition to a circular model in all economic sectors to drastically mitigate the effects of climate change. In this regard, the producers of paving products should promote the reuse and recycling of solid waste in the design of sustainable asphalt materials. This study evaluated the performance-based properties of three highly recycled mixtures for wearing courses of asphalt pavements containing steel slag and varying amounts (25, 40, and 50%) of fractionated reclaimed asphalt (RA). In addition, the mixtures incorporated a warm mix asphalt (WMA) organic additive to lower production temperatures compared to a reference hot mix asphalt (HMA). Based on the experimental results, the warm recycled asphalt mixtures show equivalent or better performance compared to HMA in terms of moisture susceptibility, stiffness, rutting and fracture resistance, and surface macrotexture. Therefore, the combined incorporation of RA and steel slag with WMA was proven to be an effective option in designing environmentally friendly and high-performance wearing course mixtures.

摘要

政策制定者正在所有经济部门实施向循环模式的转变，以大幅减轻气候变化的影响。在这方面，铺路产品生产商应在可持续沥青材料设计中促进固体废物的再利用和回收。本研究评估了三种高再生混合料的性能特性，这些混合料用于含钢渣和不同比例（25%、40%和50%）分级再生沥青（RA）的沥青路面磨耗层。此外，与参考热拌沥青（HMA）相比，这些混合料掺入了温拌沥青（WMA）有机添加剂以降低生产温度。基于实验结果，温拌再生沥青混合料在水分敏感性、刚度、车辙和抗断裂性以及表面宏观纹理方面表现出与HMA相当或更好的性能。因此，RA、钢渣与WMA的联合掺入被证明是设计环保型高性能磨耗层混合料的有效选择。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/d2bca45e63f7/materials-14-04938-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/51b6a0b25f0c/materials-14-04938-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/bd276342ea35/materials-14-04938-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/6fafd2993760/materials-14-04938-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/42ae66275541/materials-14-04938-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/b3ea4f289e6e/materials-14-04938-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/4389d73321f9/materials-14-04938-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/e4a513c7d156/materials-14-04938-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/918b1649ac87/materials-14-04938-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/d2bca45e63f7/materials-14-04938-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/51b6a0b25f0c/materials-14-04938-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/bd276342ea35/materials-14-04938-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/6fafd2993760/materials-14-04938-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/42ae66275541/materials-14-04938-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/b3ea4f289e6e/materials-14-04938-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/4389d73321f9/materials-14-04938-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/e4a513c7d156/materials-14-04938-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/918b1649ac87/materials-14-04938-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3e44/8434263/d2bca45e63f7/materials-14-04938-g010.jpg

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本文引用的文献

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The Role of Additives in Warm Mix Asphalt Technology: An Insight into Their Mechanisms of Improving an Emerging Technology.添加剂在温拌沥青技术中的作用：对其改进一项新兴技术的作用机制的洞察
Nanomaterials (Basel). 2020 Jun 19;10(6):1202. doi: 10.3390/nano10061202.
2
Sustainable Designed Pavement Materials.可持续设计的路面材料。
Materials (Basel). 2020 Mar 29;13(7):1575. doi: 10.3390/ma13071575.
3
Use of plastic waste (poly-ethylene terephthalate) in asphalt concrete mixture as aggregate replacement.将塑料废弃物（聚对苯二甲酸乙二酯）用于沥青混凝土混合料中以替代集料。
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