Multi-Criteria Selection of Additives in Porous Asphalt Mixtures Using Mechanical, Hydraulic, Economic, and Environmental Indicators

Anik Gupta, Carlos J. Slebi-Acevedo, Esther Lizasoain-Arteaga, Jorge Rodriguez-Hernandez and Daniel Castro-Fresno
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Anik Gupta: GITECO Research Group, University of Cantabria, 39005 Santander, Spain
Carlos J. Slebi-Acevedo: GITECO Research Group, University of Cantabria, 39005 Santander, Spain
Esther Lizasoain-Arteaga: GITECO Research Group, University of Cantabria, 39005 Santander, Spain
Jorge Rodriguez-Hernandez: GITECO Research Group, University of Cantabria, 39005 Santander, Spain
Daniel Castro-Fresno: GITECO Research Group, University of Cantabria, 39005 Santander, Spain

Sustainability, 2021, vol. 13, issue 4, 1-20

Abstract: Porous asphalt (PA) mixtures are more environmentally friendly but have lower durability than dense-graded mixtures. Additives can be incorporated into PA mixtures to enhance their mechanical strength; however, they may compromise the hydraulic characteristics, increase the total cost of pavement, and negatively affect the environment. In this paper, PA mixtures were produced with 5 different types of additives including 4 fibers and 1 filler. Their performances were compared with the reference mixtures containing virgin bitumen and polymer-modified bitumen. The performance of all mixes was assessed using: mechanical, hydraulic, economic, and environmental indicators. Then, the Delphi method was applied to compute the relative weights for the parameters in multi-criteria decision-making methods. Evaluation based on distance from average solution (EDAS), technique for order of the preference by similarity to ideal solution (TOPSIS), and weighted aggregated sum product assessment (WASPAS) were employed to rank the additives. According to the results obtained, aramid pulp displayed comparable and, for some parameters such as abrasion resistance, even better performance than polymer-modified bitumen, whereas cellulose fiber demonstrated the best performance regarding sustainability, due to economic and environmental benefits.

Keywords: porous asphalt; aramid fiber; multi-criteria decision making; life cycle assessment (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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