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-  2018 

路面全寿命周期能耗与CO2排放分析研究进展
Research progress on pavement life cycle energy consumption and carbon dioxide emission assessment

Keywords: 道路工程,路面,全寿命周期,能源消耗,CO??2排放??
road engineering
,pavement,life cycle,energy consumption,carbon dioxide emission

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Abstract:

为了进一步促进路面全寿命周期分析在道路工程领域的研究与发展,为低碳节能型路面材料应用、结构设计及养护管理提供理论依据,综合国内外最新研究成果对路面全寿命周期能源消耗与CO??2排放分析方法进行了全面分析。介绍路面全寿命周期分析的基本方法,提出功能单元应具有的基本属性,指出中国主要道路建筑材料物化清单需要统一的现状。系统梳理路面材料物化阶段、建设施工阶段、使用阶段、养护维修阶段与结构拆除阶段中所涉及的环境影响因素,指出路面平整度、路面反射率、水泥混凝土碳化、沥青燃烧能、交通延误、养护维修方案等在路面全寿命分析中的重要性,并对其能耗与CO??2量化计算方法进行了分析,对再循环材料的环境影响分配方法进行了列举说明,指出数据质量与敏感性分析的必要性。综合分析表明:基于路面长时间使用寿命,应重视路面使用阶段与养护阶段中随时间积累的环境影响因素;以循环理念为基础,多层面的对路面全寿命周期内各阶段涉及到的影响因素进行综合分析,完善路面全寿命分析模型,使其能够科学、合理的计算出路面全寿命周期的能源消耗与CO??2排放。
To further promote the research and development of pavement life cycle assessment in the road engineering field and provide a theoretical basis for low??carbon and energy??saving pavement materials apply, structural design and maintenance management measures,the latest research results on pavement life cycle energy consumption and carbon dioxide emission assessment methods at home and abroad were comprehensively analyzed. A basic method for pavement life cycle assessment and the attributes that a functional unit should have were introduced, and the current status of the main road construction materials in China must be unified. The environmental impact factors of the pavement materials phase, construction phase, use phase, maintenance phase, and demolition phase were systematically reviewed. The importance of pavement roughness, pavement albedo, carbonation, asphalt feedstock energy, traffic delay, and maintenance programs in the pavement life cycle assessment was summarized. Methods for calculating the energy consumption and carbon dioxide emissions were also analyzed. The environmental impact distribution method for recycled materials was explained, and the necessity for data quality and sensitivity analysis was pointed out. According to a comprehensive analysis, based on the long service life of pavement, the environmental impact factor of use and maintenance phases should be emphasized, and the circulation concept should be applied to improve the pavement life cycle assessment model, and the factors affecting the various phases of the pavement life cycle should be analyzed at multiple levels, for achieving scientific, reasonable calculations of energy consumption and carbon dioxide emissions over the pavement life cycle. ??2 tabs??, 7 figs, 52 refs.?

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