The mechanical performance of a typical surface course mixture, modified with two different plastic wastes, both via the wet and dry processes, was evaluated in this study. Water sensitivity, rutting resistance, stiffness modulus, and fatigue cracking resistance tests were used. The results obtained indicated that the polymer-modified mixtures showed similar or improved performance when compared with that of a conventional control mixture produced with a harder virgin grade bitumen, not always available, or available at higher costs, in several countries. Thus, modifying asphalt mixtures with these plastic wastes can be an economical and ecological alternative for paving works. Moreover, the mixtures produced via the dry process showed increased water sensitivity and stiffness modulus properties. This holds out new possibilities for use of polymer-modified mixtures, especially in developing countries, because it widens the possibility of using locally available bitumen, of variable quality, for producing mixtures with higher performance. This can be achieved at real scale with no major extra costs because the dry process does not require modification of typical asphalt plants.

Ranieri, M., Costa, L., Oliveira, J., Silva, H., Celauro C. (2017). Asphalt Surface Mixtures with Improved Performance Using Waste Polymers via Dry and Wet Processes. JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 29(10), 1-9 [10.1061/(ASCE)MT.1943-5533.0002022].

Asphalt Surface Mixtures with Improved Performance Using Waste Polymers via Dry and Wet Processes

RANIERI, Mauro;CELAURO, Clara
2017-01-01

Abstract

The mechanical performance of a typical surface course mixture, modified with two different plastic wastes, both via the wet and dry processes, was evaluated in this study. Water sensitivity, rutting resistance, stiffness modulus, and fatigue cracking resistance tests were used. The results obtained indicated that the polymer-modified mixtures showed similar or improved performance when compared with that of a conventional control mixture produced with a harder virgin grade bitumen, not always available, or available at higher costs, in several countries. Thus, modifying asphalt mixtures with these plastic wastes can be an economical and ecological alternative for paving works. Moreover, the mixtures produced via the dry process showed increased water sensitivity and stiffness modulus properties. This holds out new possibilities for use of polymer-modified mixtures, especially in developing countries, because it widens the possibility of using locally available bitumen, of variable quality, for producing mixtures with higher performance. This can be achieved at real scale with no major extra costs because the dry process does not require modification of typical asphalt plants.
2017
Ranieri, M., Costa, L., Oliveira, J., Silva, H., Celauro C. (2017). Asphalt Surface Mixtures with Improved Performance Using Waste Polymers via Dry and Wet Processes. JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 29(10), 1-9 [10.1061/(ASCE)MT.1943-5533.0002022].
File in questo prodotto:
File Dimensione Formato  
Asphalt Surface Mixtures with Improved Performance Using Waste Polymers via Dry and Wet Processes _ FINAL PAPER.pdf

Solo gestori archvio

Descrizione: Full Paper
Dimensione 847.51 kB
Formato Adobe PDF
847.51 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

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/10447/236827
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 59
  • ???jsp.display-item.citation.isi??? 48
social impact