Warm mix asphalt (WMA) and crumb rubber modified asphalt in the field of asphalt paving have been demonstrated to be green technologies for producing environmentally friendly pavement. However, limited research has assessed the behaviours of mixtures including both technologies. This study performed research aligned with environmental considerations and sustainability to examine the design and manufacturing of dense asphalt mixtures incorporating a crumb-rubber modifier through a wet or dry process and a specific vegetable additive for WMA technologies. The results indicated that, when rubber is added through a wet process, and a WMA vegetable additive is incorporated, the mixture can be manufactured and compacted at temperatures approximately 25 °C below that of the control mixture, while keeping the mechanical properties within the specifications.

Technical suitability of wet or dry processing of a dense rubberized warm asphalt mixture / Rodríguez-Alloza, A. M.; Giuliani, F.; Gallego, J.. - In: MATERIALES DE CONSTRUCCIÓN. - ISSN 1988-3226. - 72:348(2022), pp. 1-10.

Technical suitability of wet or dry processing of a dense rubberized warm asphalt mixture.

Giuliani F.;
2022-01-01

Abstract

Warm mix asphalt (WMA) and crumb rubber modified asphalt in the field of asphalt paving have been demonstrated to be green technologies for producing environmentally friendly pavement. However, limited research has assessed the behaviours of mixtures including both technologies. This study performed research aligned with environmental considerations and sustainability to examine the design and manufacturing of dense asphalt mixtures incorporating a crumb-rubber modifier through a wet or dry process and a specific vegetable additive for WMA technologies. The results indicated that, when rubber is added through a wet process, and a WMA vegetable additive is incorporated, the mixture can be manufactured and compacted at temperatures approximately 25 °C below that of the control mixture, while keeping the mechanical properties within the specifications.
2022
Las mezclas semicalientes y las mezclas con caucho son técnicas en el campo de la pavimentación asfáltica que han demostrado ser tecnologías sostenibles y respetuosas con el medio ambiente. Sin embargo, la investigación dedicada al comportamiento de las mezclas que incluyen ambas tecnologías es limitada. Esta investigación está alineada con consideraciones ambientales y de sostenibilidad: el diseño y la fabricación de la mezcla asfáltica densa incorpora caucho tanto por la vía húmeda o vía seca, y un aditivo vegetal específico de la tecnología de mezclas semicalientes. De los resultados obtenidos se ha demostrado que, cuando se añade el caucho por vía húmeda, la mezcla se puede fabricar y compactar a temperaturas del orden de 25 ºC por debajo de la temperatura de la mezcla de control gracias a la adición del aditivo vegetal para mezclas semicalientes seleccionado mateniéndose las propiedades mecánicas dentro de las especificaciones.
Technical suitability of wet or dry processing of a dense rubberized warm asphalt mixture / Rodríguez-Alloza, A. M.; Giuliani, F.; Gallego, J.. - In: MATERIALES DE CONSTRUCCIÓN. - ISSN 1988-3226. - 72:348(2022), pp. 1-10.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2942314
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
social impact