WARM MIX ASPHALT – ENVIRONMENT FRIENDLY PAVEMENT TECHNOLOGIES

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-16-2 / ISSN 1314-2704, June 19-25, 2014, Book 4 ,Vol. 2, 607-614 pp

ABSTRACT
The destruction of natural resources and climate change are the main causes of damage and disruption of ecosystems. Industry, agriculture, and transport are blamed for being the main contributors. This awareness was formalized in 1997 by the Kyoto Protocol to the United Nations Framework Convention on Climate Change which featured, in particular, a commitment made by signatory states to bring greenhouse gas emission rates down to 1990 levels. This agreement came into force on February 13, 2005. Warm-mix asphalt technology addresses this issue in a rather small but important way. The concept of warm-mix asphalt has been introduced over the last few years, a mixture produced at temperatures in the range of 20oC to 40o C lower than typical hot-mix asphalt (HMA). Technologies that allow lower HMA production temperatures may demonstrate positive impacts on pavement performance and in reduction of pollutant emisions. The results are presented like comparative graphs and the conclusions will establish which is the performance of WMA.

Keywords: roads infrastructure, warm mix asphalt, CO2 reduction, bitumen additives,
mixture stiffness