Use of waste and marginal materials for silent roads

Poulikakos, Lily; Athari, Sahand; Mikhailenko, Peter; Piao, Zhengyin; Kakar, Muhammad Rafiq Khan; Bueno, Moises; Pieren, Reto; Heutschi, Kurt (13 September 2019). Use of waste and marginal materials for silent roads In: Proceedings of the 23rd International Congress on Acoustics: ICA 2019 (pp. 491-498). Deutsche Gesellschaft für Akustik

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Inhabitants of the urban environment are exposed to high levels of traffic noise and increase in amounts of waste. One way to mitigate their exposure to noise is to take advantage of the existing public spaces between buildings and transform the available surfaces of pavements into elements that foster comfort and health for urban residents. This work aims to develop low noise pavements by using certain waste materials. Semi-dense asphalt (SDA) mixtures (Air Voids = 12-16%) is used in this study due to their acoustic properties. Part of the aggregate matrix incorporates crumb rubber (CR). The various mixtures produced are compacted into 100mm dimeter specimens and subjected to texture measurements by 3D laser profilometry, porosity measurements and sound absorption measurements by the impedance tube method (EN 10534-2). The SDA mixtures showed a higher surface macrotexture amplitude, MPD. They also showed a more negative surface profile Rsk, indicating better noise properties based on the shape. This study gives us an understanding on how waste materials impact the texture and acoustic properties of roads and ultimately, to what degree they can be incorporated in low-noise asphalt mixtures.

Item Type:	Conference or Workshop Item (Paper)
Division/Institute:	School of Architecture, Wood and Civil Engineering School of Architecture, Wood and Civil Engineering > Institute for Urban Development and Infrastructure > Transport Infrastructure
Name:	Poulikakos, Lily; Athari, Sahand; Mikhailenko, Peter; Piao, Zhengyin; Kakar, Muhammad Rafiq Khan; Bueno, Moises; Pieren, Reto and Heutschi, Kurt
Subjects:	T Technology > TE Highway engineering. Roads and pavements
ISBN:	978-3-939296-15-7
Publisher:	Deutsche Gesellschaft für Akustik
Language:	English
Submitter:	Muhammad Rafiq Khan Kakar
Date Deposited:	22 Mar 2022 15:16
Last Modified:	08 Apr 2022 08:37
Related URLs:	Organisation
Uncontrolled Keywords:	Semi Dense Asphalt; Low Noise Pavements, Crumb Rubber
ARBOR DOI:	10.24451/arbor.16568
URI:	https://arbor.bfh.ch/id/eprint/16568