Recommendation of RILEM TC 264 RAP on the evaluation of asphalt recycling agents for hot mix asphalt

• DOI: 10.1617/s11527-021-01837-0
• Publication Date: 2022-01-19T13:02:51Z
• Authors: Martin Hugener; Di Wang; Augusto Cannone F...; Laurent Porot; Patricia Kara De ...; Marko Orešković; Margarida Sa-da-C...; Hassan Tabatabaee; Edoardo Bocci; Atsushi Kawakami; Bernhard Hofko; Andrea Grilli; Emiliano Pasquini; Marco Pasetto; Huachun Zhai; Hilde Soenen; Wim Van den bergh; Fabrizio Cardone; Alan Carter; Kamilla Vasconcelos; Xavier Carbonneau; Aurelie Lorserie; Goran Mladenović; Tomas Koudelka; Pavel Coufalik; Runhua Zhang; Eshan Dave; Gabriele Tebaldi
• Keywords: Dynamic shear rheometer; Asphalt pavement; Fatigue cracking

Abstract This recommendation is based on the results of an inter-laboratory study organised by RILEM technical committee TC 264-RAP "Asphalt Pavement Recycling"—Task Group 3 (TG3) focusing Asphalt Binder for Recycled Mixture. The TG3 aimed to evaluate effect a specific family materials known as asphalt recycling agent (ARA) aged binder under different configurations. Even though ageing irreversible phenomenon, effective ARA must have capability improve flexibility bituminous and their resistance against cracking susceptibility with no adverse rutting pavements containing reclaimed asphalt. A total 17 participating laboratories analysed properties blends composed from in three contents (60, 80, 100%), virgin binder. physical were thoroughly evaluated through traditional rheological testing. proposes restore original material at low intermediate temperatures (i.e. resistance) while balancing high-temperature characteristics susceptibility) durable impact throughout progression phenomena. Therefore, useing Dynamic Shear Rheometer foreseen more suitable sustainable means agent. Compared conventional testing, proposed approach requires fewer resulting faster experimental procedure one single test.