Eco-friendly green alternative binder for asphalt from waste oil and waste polymer
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Eco‑friendly green alternative binder for asphalt from waste oil and waste polymer Ibrahim M. Nassar1,2 · Ramy M. Abdel‑monem2 · M. A. Sayed2 · A. A. Ragab2 Received: 16 July 2020 / Revised: 21 October 2020 / Accepted: 6 November 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Eco-friendly alternative binders for asphalt were studied, utilizing green bio-additives (GBA) with different compositions. These GBA were prepared using the waste of cooking oil (WCO) in different ratios ranged from 10 to 40% from the whole composite; on the other hand, the waste polymer (WP), which formed from styrene–butadiene rubber (WSBR) and waste polystyrene (WPS) in a ratio ranged from 90 to 60% from the GBA composite, was used. The optimum composition of GBA has been chosen based on the physical and curing properties, which define that the [60% WP (WSBR and WPS separately) with 40% WCO] is the optimum composite. Asphalt 60/70 (A) and 80/100 (B) were used in this study, GBA with different ratios ranged from 10 to 50% from the applied asphalt were added to prepare green alternative binder (GAB), and physical and rheological properties before and after curing were investigated. The physical properties of the GAB including penetration, softening point, penetration index and penetration temperature susceptibility before and after curing were studied. Rheological properties of pure asphalt and the prepared GAB were studied using dynamic shear rheometer. Herein, data revealed that the GAB consisting of equal proportions between WCO and WP is simulated to original asphalt in the physical and rheological properties. The results showed that in case of asphalt 60/70, when using the 40% WSBR, the softening point increased by 17.7% and penetration decreased by 15.4%, and when using the 40% WPS, the softening point increased by 24.4% and penetration decreased by 16.9%. In case of 50% GAB, when using asphalt 60/70 + 40% WPS, the softening point increased by 17.7%, while using asphalt 80/100 + 40% WPS the softening point increased by 28.9%. Additionally, these materials are a promising candidate to replacement the non-renewable asphalt binders which used in the construction of road infrastructure, with a healthy environment and reduce the cost of road construction. Keywords Asphalt · Eco-friendly · Green alternative binder · Waste oil and waste polymer * A. A. Ragab [email protected] Extended author information available on the last page of the article
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Polymer Bulletin
Introduction The construction of a new road has a number of implications for the environment, consuming large amounts of materials and energy. Also, the price of crude oil, which is the major source of asphalt binder, has significantly increased in recent years (the most noticeably in 2001–2008) [1]. This has led to an increase in the total price of asphalt mixtures. In order to promote sustainable practices and to combat price increase, measures with sound sustainability credentials need to be widely implemented. Developin
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