生物碳作为道路碳管理的一种手段,Advanced Sustainable Systems

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生物碳作为道路碳管理的一种手段
Advanced Sustainable Systems ( IF 6.5 ) Pub Date : 2023-04-26 , DOI: 10.1002/adsu.202300054
Farideh Pahlavan ₁ , Sand Aldagari ₁ , Ki‐Bum Park ₂ , Joo‐Sik Kim ₂ , Elham H. Fini ₁

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本文介绍了生物碳，简称生物炭，它是一种新型环保且具有成本效益的添加剂，可增加沥青成分之间的相互作用，同时促进道路基础设施中的碳管理。据推测，生物炭表面上的官能团增强了生物炭和沥青成分之间的相互作用。这反过来又提高了沥青路面的机械性能和耐久性。本研究使用源自六种不同类型的木质生物质和一种藻类的生物炭，以及聚对苯二甲酸乙二醇酯颗粒作为载体，将生物炭引入沥青中。基于量子的分子模型和非共价相互作用分析表明，藻类生物炭与沥青成分的相互作用更有效。藻类生物炭增强的相互作用归因于其表面官能团，包括活性氮和氧携带官能团。掺杂不同生物炭的沥青的流变特性证实，含有藻类生物炭的沥青的分离指数最低，同时也表现出最高的弹性恢复百分比和抗永久变形能力。研究表明，通过选择合适的生物炭来增加分子间相互作用，可以提高沥青路面的耐久性。藻类生物炭的可喜成果通过封存二氧化碳促进其在道路基础设施碳管理中的应用掺杂不同生物炭的沥青的流变特性证实，含有藻类生物炭的沥青的分离指数最低，同时也表现出最高的弹性恢复百分比和抗永久变形能力。研究表明，通过选择合适的生物炭来增加分子间相互作用，可以提高沥青路面的耐久性。藻类生物炭的可喜成果通过封存二氧化碳促进其在道路基础设施碳管理中的应用掺杂不同生物炭的沥青的流变特性证实，含有藻类生物炭的沥青的分离指数最低，同时也表现出最高的弹性恢复百分比和抗永久变形能力。研究表明，通过选择合适的生物炭来增加分子间相互作用，可以提高沥青路面的耐久性。藻类生物炭的可喜成果通过封存二氧化碳促进其在道路基础设施碳管理中的应用_2.通过光合作用从空气中获取藻类生物质。

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Bio-Carbon as a Means of Carbon Management in Roads

This paper introduces biocarbon, referred to as biochar, as a novel eco-friendly and cost-effective additive to increase interactions among bitumen components while facilitating carbon management in roadway infrastructures. It is hypothesized that functional groups on biochar surfaces enhance interactions between biochar and bitumen constituents. This in turn enhances mechanical properties and durability of asphalt pavements. This study uses biochars derived from six different types of woody biomass and one type of algae, and polyethylene terephthalate granules as a carrier to introduce biochar to bitumen. Quantum-based molecular modeling and noncovalent interaction analysis show that algal biochar interacts more effectively with bitumen components. The enhanced interaction of algal biochar is attributed to its surface functional groups including reactive nitrogen- and oxygen-carrying functional groups. The rheological characterization of bitumen doped with different biochars confirms that the lowest separation index occurs for bitumen containing algal biochar, which also exhibits the highest percent of elastic recovery and resistance to permanent deformation. The study suggests that asphalt pavement durability can be enhanced by selection of the proper biochar to increase intermolecular interactions. Promising results for the algae biochar promote its use in carbon management for roadway infrastructure by sequestering CO₂ from air through photosynthesis of algae biomass.

更新日期：2023-04-26

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