@conference {2137,
	title = {Evaluation of foamed bitumen efficiency in warm asphalt mixtures recycling},
	journal = {3rd Int Conference on Wastes: Solutions, treatments and opportunities},
	year = {2015},
	month = {2015-09-14 00:00:00},
	pages = {1-6},
	publisher = {CRC Press - Taylor \& Francis Group},
	address = {Viana do Castelo, Portugal},
	abstract = {The recycling of pavements is nowadays a very important question to the road paving in-dustry. With the objective of incorporating higher percentages of reclaimed asphalt (RA) materials in recycled asphalt mixtures, new techniques have been developed in the last years. The use of foamed bitumen is normally associated with the production of cold as-phalt mixtures, which usually show lower quality standards. However, the objective of the work presented in this paper is to assess the use of foamed bitumen as the binder of warm asphalt mixtures incorporating 30\% RA, which have quality standards similar to those of conventional mixtures. Thus, five mixtures have been produced with 30\% RA, one of them with a conventional bitumen (control mix) and the others with foamed bitumen at different production temperatures. The mixtures were tested for compactability and water sensitivity and the results show a possible reduction of 25 {\textordmasculine}C in the production tempera-tures, while the water sensitivity test results were kept close to 90 \%.},
	keywords = {Foamed bitumen, warm asphalt mixtures},
	isbn = {978-1-138-02882-1},
	author = {Abreu, L. and Oliveira, J. R. M. and Silva, H. M. R. D. and Palha, D. and Fonseca, P.}
}