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Evaluation of energy requirement and greenhouse gas emission of concrete heavy-duty pavements incorporating high volume of industrial by-products

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Title: Evaluation of energy requirement and greenhouse gas emission of concrete heavy-duty pavements incorporating high volume of industrial by-products
Authors: Jamshidi, Ali Browse this author
Kurumisawa, Kiyofumi Browse this author →KAKEN DB
Nawa, Toyoharu Browse this author →KAKEN DB
Samali, Bijan Browse this author
Igarashi, Toshifumi Browse this author →KAKEN DB
Keywords: Resource management
Sustainable practice
Sustainable infrastructure asset
Low energy pavement
Issue Date: 10-Nov-2017
Publisher: Elsevier
Journal Title: Journal of cleaner production
Volume: 166
Start Page: 1507
End Page: 1520
Publisher DOI: 10.1016/j.jclepro.2017.08.141
Abstract: This study evaluates the effects of high percentages of different by-products, including blast furnace slag (BFS) and fly ash (FA), on the structural performance, energy requirement and environment impacts of a concrete heavy-duty pavement (HDP) at various curing temperatures. The results of the structural performance indicate that HDP containing up to 70% BFS and HDP containing 30% FA can be comparable in controlling the HDPs designed for highways and airports. Moreover, the results of the environmental impact assessment indicate that the synergy of the by-product and warm water can reduce the energy requirement and CO2 footprint by 5.77% to 56.54% and 8.16% to 55.5% for the highway and airport HDPs, respectively. Although the elevated curing temperature improves the structural performance and sustainability of the concrete pavements, any delay in concrete production increases energy consumption accordingly. Moreover, a new parameter , which is the time gradient per unit energy consumption developed based on the Laplace transformation, is proposed to characterize the effect of the time delay in concrete production. This parameter indicates that the time required for a unit energy consumption (1 TJ) decreases by 50%, as the curing temperature increases. In conclusion, analysis of the structural design, carbon footprint, and the results of indicate that 35 °C can be proposed as the optimum water curing temperature for the HDP incorporating by-products.
Rights: © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/76068
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 五十嵐 敏文

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