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[1] Bo Wu, Ren Haisheng, Geng Wei, et al. Investigation of the environmental impactsof steel deck pavement based on life cycle assessment [J]. Journal of Southeast University (English Edition), 2020, 36 (3): 334-340. [doi:10.3969/j.issn.1003-7985.2020.03.012]
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Investigation of the environmental impactsof steel deck pavement based on life cycle assessment()
基于生命周期分析法的钢桥面铺装层环境影响研究
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
36
Issue:
2020 03
Page:
334-340
Research Field:
Traffic and Transportation Engineering
Publishing date:
2020-09-20

Info

Title:
Investigation of the environmental impactsof steel deck pavement based on life cycle assessment
基于生命周期分析法的钢桥面铺装层环境影响研究
Author(s):
Bo Wu1;  2;  Ren Haisheng1;  Geng Wei3;  Gao Hui1;  Qian Zhendong1
1Intelligent Transport System Research Center, Southeast University, Nanjing 211189, China
2School of Engineering, Tibet University, Lasa 850000, China
3Nanjing Communications Institute of Technology, Nanjing 211188, China
薄雾1;  2;  任海生1;  耿巍3;  高辉1;  钱振东1
1东南大学智能运输系统研究中心, 南京 211189; 2西藏大学工学院, 拉萨 850000; 3南京交通职业技术学院, 南京 211188
Keywords:
steel deck pavement;  environmental impact;  life cycle assessment;  energy consumption;  gas emission
钢桥面铺装层;  环境影响;  生命周期分析法;  能源消耗;  气体排放
PACS:
U418.4
DOI:
10.3969/j.issn.1003-7985.2020.03.012
Abstract:
To investigate the environmental impacts of steel deck pavement through the whole life cycle, the steel deck pavement was divided into five stages: raw materials production, asphalt mixture mixing, pavement construction, operation management, and pavement removing stage. Based on the process-based life cycle assessment(PLCA)method, the calculation methods of energy consumption and gas emissions of two typical steel deck pavement systems(EA+EA pavement and GA+SMA pavement)were determined. The data lists of two pavements were analyzed, and the calculation model was built. Four characteristic indices including primary energy demand(PED), global warming potential(GWP), acidification potential(AP)and respiratory inorganics(RI)were used to quantify the environmental impacts of two pavements. The results show that the environmental impact of the GA+SMA pavement is more than 1.3 times that of the EA+EA pavement. Moreover, the critical stage of energy-saving and emission-reduction of EA+EA pavement and GA+SMA pavement are the raw material production stage and asphalt mixture mixing stage, respectively.
为研究钢桥面铺装层在全生命周期内对环境的影响, 将钢桥面铺装层的生命周期划分为原材料生产、混合料拌和、铺装层铺筑、运营管理和铺装层铲除5个阶段, 并基于过程生命周期分析法, 确定了钢桥面铺装层中应用较广的双层环氧和下层浇注+上层SMA两种铺装层生命周期内能耗与排放的计算方法.分析了2种铺装层的生命周期清单, 构建了相应计算模型, 以初级能源消耗(PED)、全球变暖潜值(GWP)、酸化(AP)和可吸入无机物(RI)4个特征化指标量化了2种钢桥面铺装层生命周期内对环境的影响.结果表明, 下层浇注+上层SMA铺装层生命周期内对环境的影响是双层环氧铺装层的1.3倍以上;双层环氧铺装层节能减排的重点在于原材料生产阶段, 下层浇注+上层SMA铺装层节能减排的重点在于混合料拌合阶段.

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Memo

Memo:
Biographies: Bo Wu(1984—), male, Ph.D. candidate; Qian Zhendong(corresponding author), female, doctor, professor, qianzd@seu.edu.cn.
Foundation items: The National Key Research and Development Project of China(No.2018YFB1600304), the National Natural Science Foundation of China(No.51878167, 51678146), the National Natural Science Foundation of Xizang, China(No.XZ2018ZRG-10).
Citation: Bo Wu, Ren Haisheng, Geng Wei, et al. Investigation of the environmental impacts of steel deck pavement based on life cycle assessment[J].Journal of Southeast University(English Edition), 2020, 36(3):334-340.DOI:10.3969/j.issn.1003-7985.2020.03.012.
Last Update: 2020-09-20