Viscione, Nunzio (2021) Assessment of eco-friendly modified asphalt mixtures using Graphene-enhanced polymer compound by dry process. [Tesi di dottorato]
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| Tipologia del documento: | Tesi di dottorato |
|---|---|
| Lingua: | English |
| Titolo: | Assessment of eco-friendly modified asphalt mixtures using Graphene-enhanced polymer compound by dry process |
| Autori: | Autore Email Viscione, Nunzio nunzio.viscione@unina.it |
| Data: | 12 Dicembre 2021 |
| Numero di pagine: | 128 |
| Istituzione: | Università degli Studi di Napoli Federico II |
| Dipartimento: | Ingegneria Civile, Edile e Ambientale |
| Dottorato: | Ingegneria dei sistemi civili |
| Ciclo di dottorato: | 34 |
| Coordinatore del Corso di dottorato: | nome email Papola, Andrea andrea.papola@unina.it |
| Tutor: | nome email Russo, Francesca [non definito] Venturini, Loretta [non definito] Mladenović, Goran [non definito] Lo Presti, Davide [non definito] |
| Data: | 12 Dicembre 2021 |
| Numero di pagine: | 128 |
| Parole chiave: | Hard-plastic-asphalt modifier; Graphene Nanoplatelets; modified asphalt mixtures;recycled polymer compound; dry process; pioneering mixing process, |
| Settori scientifico-disciplinari del MIUR: | Area 08 - Ingegneria civile e Architettura > ICAR/04 - Strade, ferrovie ed aeroporti |
| Depositato il: | 17 Dic 2021 08:55 |
| Ultima modifica: | 28 Feb 2024 11:42 |
| URI: | http://www.fedoa.unina.it/id/eprint/14297 |
Abstract
The recent warnings about waste pollution and the limits of natural resources are encouraging the development of a circular economy changing the paradigm related to the linear economy. With reference to asphalt pavements, it should be noted that technologies have been developed towards solutions for enhancing the pavement’s service life, which should be considered in Life Cycle Analysis (LCA) too. On this way, the effect of an innovative product that contains graphene and a selected type of recycled hard plastics, on the mechanical related properties of hot asphalt mixtures, were investigated. In detail, a traditional HMA (HMANB) was designed and adopted as reference mixture in comparison with a) an HMA manufactured using PMB (HMAPMB); b) an HMA manufactured using the dry process with the introduction of the first polymeric compound (HMAPC) and c) an HMA manufactured using the dry process with the introduction of the graphene-enhanced asphalt modifier (HMAGRPC). The mechanical response of each asphalt solution was investigated by looking at a) Indirect Tensile test (ITS) b) moisture damage by Indirect Tensile strength Ratio (ITSR) test; c) cracking by fatigue and Semi-Circular Bending tests and d) rutting both considering Stiffness Modulus (ITSM) and susceptibility to deform by Wheel Tracker. Considering the obtained test results and conducted investigations, it is possible to conclude that the PMA modification process was found a promising solution for the purpose of increasing the mechanical properties of asphalt mixtures and engineering superior asphalt mixtures via recycling plastic and nano platelets of graphene compounds through the dry process into asphalt mixture is possible
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