Sustainable Pavement Solutions: A Project-Based Economic Assessment of RAP Usage

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Author(s): Dolunay Zengin (Faculty of Engineering, Department of Civil Engineering, Pamukkale University, Denizli, Turkey), Soner Haldenbilen (Faculty of Engineering, Department of Civil Engineering, Pamukkale University, Denizli, Turkey)and Mohammad Aman Rasekh (Faculty of Engineering, Department of Civil Engineering, Pamukkale University, Denizli, Turkey)
Copyright: 2026
Pages: 34
Source title: Sustainable Solutions for Transportation and Logistics
Source Author(s)/Editor(s): Olcay Polat (Pamukkale University, Turkey)and Görkem Gülhan (Pamukkale University, Turkey)
DOI: 10.4018/979-8-3373-4611-3.ch009

Keywords: Business & Management / Engineering Science Reference / Supply Chain Management / Transportation Studies

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Abstract

This study examines the technical and economic effects of incorporating Reclaimed Asphalt Pavement (RAP) and basalt fiber into asphalt mixtures within the framework of sustainability and circular economy principles. Twelve mixtures with varying RAP (0–45%) and fiber (0–3‰) contents were tested using the Tensile Strength Ratio (TSR) and Hamburg Wheel Tracking methods. Results showed that RAP significantly improved rutting resistance and reduced costs, achieving up to 34% savings at 45% RAP. Although basalt fiber slightly increased initial costs due to higher bitumen demand, it enhanced durability and reduced long-term maintenance needs. Overall, RAP supports circular economy goals by lowering material and energy use, while basalt fiber strengthens mechanical performance, offering a balanced and sustainable pavement solution.

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Sustainable Pavement Solutions: A Project-Based Economic Assessment of RAP Usage

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