Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 71, Issue -, Pages 538-550Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2014.08.073
Keywords
Recycling agent; Rejuvenator; RAP; Reclaimed asphalt; Waste Vegetable Oil; Fry oil; Recycled asphalt concrete; Performance-related tests; Superpave
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100% recycled hot mix asphalt lab samples were modified with five generic and one proprietary rejuvenators at 12% dose and tested for binder and mixture properties. Waste Vegetable Oil, Waste Vegetable Grease, Organic Oil, Distilled Tall Oil, and Aromatic Extract reduced the Superpave performance grade (PG) from 94-12 of extracted binder to PG 64-22 while waste engine oil required higher dose. All products ensured excellent rutting resistance while providing longer fatigue life when compared to virgin mixtures and most lowered critical cracking temperature. Rejuvenated samples required more compaction energy compared to virgin and some oils reduced moisture resistance slightly. (C) 2014 Elsevier Ltd. All rights reserved.
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