沥青路面预防养护工程的碳排放分析

Analysis on Carbon Emissions of Prevention and Maintenance Engineering for Asphalt Pavements

摘要:

通过评估城市沥青路面预防养护工程对碳排放的影响，为城市交通基础设施的低碳和环保发展提供指导性建议。通过对沥青路面养护过程中的生产、运输、施工3个核心阶段进行分析，采用工程量预算定额法和碳排放因子法对就地热再生、微表处、超薄磨耗层、薄层罩面四种养护技术的碳排放性能进行了评估。结果表明，就地热再生技术在材料的高效利用、废物处理及能源消耗方面的优势，在整个养护周期中表现出了相对较低的碳排放量。据此提出了一个综合评估框架，强调在选择城市沥青路面预防养护策略时，应综合考虑技术的碳排放性能与经济效益。

Abstract:

By assessing the impact of urban asphalt pavement prevention and maintenance engineering on carbon emissions, the guidance and suggestions are provided for the low-carbon and environmental protection development of urban transportation infrastructure. Through the analysis on three core stages of production, transportation and construction in the asphalt pavement maintenance process, the engineering quantity budget quota method and the carbon emission factor method are used to assess the carbon emissions of four maintenance techniques such as in-situ thermal regeneration, micro-surfacing, ultra-thin wearing courses and thin overlay. The result shows that due to the advantages of in-situ thermal regeneration technology in efficient material utilization, waste treatment and energy consumption, its relatively lower carbon emissions are shown during the whole maintenance cycle. Accordingly, an integrated assessment framework is proposed to emphasize that the carbon emission performance and economic benefit of the technology should be considered comprehensively when selecting the prevention and maintenance strategies of urban asphalt pavements.