Innovative Technologies and Materials for more Sustainable Transportation Infrastructures
DOI:
https://doi.org/10.14633/AHR198Keywords:
Proprietà superficiali, pavimentazione porose, decadimento nel tempo, sostenibilità, agenda 2030Abstract
nnovative technologies and materials can develop the goals stated in the UN resolution A/RES/70/1. To be more precise, low-noise road pavements (for example Porous asphalt concretes, asphalt rubberised mixture, and texture-optimised pavements) have volumetric, surface (such as drainability, texture, friction and acoustic performance), and mechanistic properties that decay over time. This depends on the particular technology used and on the many variables, processes, and phenomena with consequences in terms of safety, quietness, and budget.
In light of these issues, the objectives of this study are confined into discussing several prospective developments related to the improvement of the road pavements currently used in the urban context. A new methodology aimed at improving the design of the main properties of a road pavement is presented.
The abovementioned methodology was set up based on laboratory and on-site tests, which were carried out over recent decades in order to monitor the variation of surface and volumetric properties over time. Road surfaces with premium properties (such as low-noise emissions) can increase pavement and acoustic durability, and the proposed methodology can greatly improve the overall sustainability of current transportation infrastructures, fulfilling some of the goals stated in the UN Resolution A/RES/70/1.
Tecnologie e materiali innovativi per infrastrutture di trasporto più sostenibili
Le tecnologie e i materiali innovativi possono favorire gli obiettivi contenuti nella risoluzione A/RES/70/1 delle Nazioni Unite. Le pavimentazioni stradali a bassa rumorosità (ad esempio le pavimentazioni porose, le miscele bituminose con gomma e le pavimentazioni con tessitura ottimizzata) hanno proprietà volumetriche, superficiali (quali drenabilità, tessitura, aderenza e prestazioni acustiche) e proprietà meccaniche che decadono nel tempo. Ciò dipende dalla particolare tecnologia utilizzata e da molteplici variabili. Molti processi e fenomeni sono coinvolti, con conseguenze in termini di sicurezza, rumorosità e budget. Alla luce di questi problemi, gli obiettivi di questo studio riguardano la messa a punto di una metodologia volta a migliorare la progettazione delle principali proprietà di una pavimentazione stradale e in particolare di quelle relative alla superficie. Le proprietà superficiali e volumetriche sono state monitorate, analizzate, in laboratorio e in situ. I risultati mostrano che l'uso di superfici stradali “speciali” (aventi, ad esempio, bassa emissione di rumore) può aumentare la durata complessiva della pavimentazione e che il metodo messo a punto può migliorare notevolmente la sostenibilità complessiva delle infrastrutture di trasporto, raggiungendo alcuni degli obiettivi indicati nella risoluzione A/RES/70/1.
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Copyright (c) 2019 Filippo Giammaria Praticò; Rosario Fedele; Paolo Giovanni Briante; Gianfranco Pellicano; Giuseppe Colicchio

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