The Authors present the results obtained by using a system for the characterization of bituminous mixtures which was specifically devised to be employed for the evaluation of additives. The characterization system is based on the testing of multi-scale bituminous systems, progressively formed by an increasing number of components: binders, mastics, slurries and whole-mixtures. Specific tests which were performed at the various scale levels include rheological and empirical tests on binders, rheological and fatigue tests on mastics, volumetric and fatigue tests on slurries, volumetric, stiffness and fatigue tests on mixtures. The analysis system was applied to a specific case in order to evaluate the effectiveness of two additives: a silica reinforced vulcanised natural rubber and a patented granular product, basically constituted by ethylene-vinyl-acetate. Obtained results proved to be coherent at all scales and yielded information regarding the possible field performance of the mixtures containing the two additives.
Multi-scale testing of bituminous systems for additive evaluation / Santagata, Ezio; Bassani, Marco; Lioi, Davide; Cossale, Gianluca. - STAMPA. - 1:(2009), pp. 175-184. (Intervento presentato al convegno MAIREPAV6, 6th International Conference on Maintenance and Rehabilitation of Pavements tenutosi a Torino, Italy nel July 8-10, 2009).
Multi-scale testing of bituminous systems for additive evaluation
SANTAGATA, Ezio;BASSANI, Marco;LIOI, DAVIDE;COSSALE, GIANLUCA
2009
Abstract
The Authors present the results obtained by using a system for the characterization of bituminous mixtures which was specifically devised to be employed for the evaluation of additives. The characterization system is based on the testing of multi-scale bituminous systems, progressively formed by an increasing number of components: binders, mastics, slurries and whole-mixtures. Specific tests which were performed at the various scale levels include rheological and empirical tests on binders, rheological and fatigue tests on mastics, volumetric and fatigue tests on slurries, volumetric, stiffness and fatigue tests on mixtures. The analysis system was applied to a specific case in order to evaluate the effectiveness of two additives: a silica reinforced vulcanised natural rubber and a patented granular product, basically constituted by ethylene-vinyl-acetate. Obtained results proved to be coherent at all scales and yielded information regarding the possible field performance of the mixtures containing the two additives.Pubblicazioni consigliate
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https://hdl.handle.net/11583/2366771
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