AI Publication Reviews REOB
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The Asphalt Institute recently released a comprehensive review of vacuum-tower asphalt extender (VTAE), a common form of re-refined engine oil bottoms (REOB) used as a blending agent to soften asphalt binders. The free publication, State of the Knowledge: The Use of REOB/VTAE in Asphalt (IS 235), details health, safety, and environmental considerations, as well as alternate tests and aging protocols for characterizing physical properties of asphalt binders that incorporate REOB.
