Assessment of carbon dioxide emissions during production, construction and use stages of asphalt pavements

Transportation Research Interdisciplinary Perspectives

Baowen Lou¹  Shaopeng Wu²  Sara Anastasio²  Diego Maria Barbieri²  Fusong Wang²  Terje Kristensen²  Rolf André Bohne³  Hrefna Run Vignisdottir⁴  Inge Hoff⁵  Jiashuo Li⁵ 

[1] Corresponding author.;Norwegian University of Science and Technology, Department of Civil and Environmental Engineering, Høgskoleringen 7A, Trondheim 7491, Trøndelag, Norway;SINTEF Infrastructure, Strindvegen 4, Trondheim 7034, Trøndelag, Norway;Shandong University Shanda South Road 27, Jinan 250100, Shandong, China;State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology. Luoshi Road 122, Wuhan 430070, Hubei, China;

关键词: Carbon dioxide emissions;    Sustainability;    Asphalt pavement;    Life Cycle Assessment;    Albedo;    Rolling resistance;   

DOI  :  

来源: DOAJ

【 摘 要 】

The carbon dioxide emissions generated during the life of flexible asphalt pavements are an important indicator of the sustainability of these infrastructures. The study aims at tentatively quantifying the CO2 released during production, construction and use stages of a road pavement, the analysis is performed adopting a Life Cycle Assessment approach. Each stage is structured based on data retrieved from an extensive literature review. Special focus is given to the use stage, which is usually only partially addressed. The study is achieved employing the “HERMES CO2” spreadsheet tool developed for the purpose and it is publicly available to maximize openness and the interaction with the user. As an illustrative application, the study then quantifies the generation of carbon dioxide for the three major categories of Norwegian highways referring to 1 km as functional unit with lifespan of 50 years. The analysis documents that the overall CO2 amount is approximately equal to 1 million metric tons, which is significantly related to the albedo and rolling resistance of the use stage. Overall, the research establishes a common methodology and analysis frame which is relevant to early planning of road pavements and can be refined further for specific case-studies.

【 授权许可】

Unknown