Characterization of crumb rubber from end-of-life tyres for paving applications.

Crumb rubber (CR) derived from grinding of end-of-life tyres (ELTs) may be successfully used as a bitumen modifier or as a supplementary component in the production of bituminous mixtures employed for the construction and maintenance of road pavements. However, CRs deriving from different sources and production processes yield effects on performance of corresponding paving mixtures under traffic loading and on gaseous emissions produced during laying on site which may change considerably depending upon their physical and chemical properties. In order to quantitatively assess the possible variability of CR characteristics, 16 samples were taken from 9 Italian and 2 foreign ELT processing plants. Investigation activities included field surveys, during which plants were examined in detail, and laboratory tests, which focused on physical and chemical characterization of CR. Based on the analysis of available technical information and experimental data, it was possible to find relationships between the peculiar characteristics of treatment cycles and corresponding CR properties.

[1]  Ezio Santagata,et al.  Use of Crumb Rubber in road paving applications: workers' health risk assessment , 2013 .

[2]  Ezio Santagata,et al.  Development of a laboratory test procedure for the evaluation of potential gaseous emissions of asphalt rubber bituminous mixtures , 2014 .

[3]  Douglas D. Carlson,et al.  Stack Emissions With Asphalt Rubber A Synthesis of Studies , 2003 .

[4]  H A Khalid,et al.  EXPLORATORY STUDY TO EVALUATE THE PROPERTIES OF RUBBERISED ASPHALT MODIFIED USING THE WET AND DRY PROCESSES , 2002 .

[5]  Ezio Santagata,et al.  Potential Performance-Related Properties of Rubberized Bituminous Mixtures Produced with Dry Technology , 2013 .

[6]  S N Amirkhanian,et al.  UTILIZATION OF CRUMB RUBBER IN ASPHALTIC CONCRETE MIXTURES - SOUTH CAROLINA'S EXPERIENCE , 2001 .

[7]  R G Hicks,et al.  Asphalt rubber design and construction guidelines volume 1: design guidelines , 2002 .

[8]  Mary Stroup-Gardiner,et al.  Polymerized crumb rubber modified mixtures in Minnesota , 1994 .

[9]  Douglas D. Carlson.  Stack Emissions With Asphalt Rubber , 2003 .

[10]  Ezio Santagata,et al.  Relationship between Crumb Rubber Morphology and Asphalt Rubber Viscosity , 2012 .

[11]  J A Epps.  USES OF RECYCLED RUBBER TIRES IN HIGHWAYS , 1994 .

[12]  Mark S. Buncher,et al.  Evaluating the Effects of the Wet and Dry Processes for Including Crumb Rubber Modifier in Hot Mix Asphalt. , 1995 .

[13]  Silvia Fiore,et al.  Environmental–sanitary risk analysis procedure applied to artificial turf sports fields , 2013, Environmental Science and Pollution Research.

[14]  Ezio Santagata,et al.  Assessment of gaseous emissions produced on site by bituminous mixtures containing crumb rubber , 2014 .

[15]  Mariachiara Zanetti,et al.  Impact of the contamination due to chlorinated solvents and chromium VI on the human receptors resident near an industrial area , 2010 .

[16]  Boming Tang,et al.  Influence of surface area and size of crumb rubber on high temperature properties of crumb rubber modified binders , 2009 .

[17]  R R Watts,et al.  Airborne exposures to PAH and PM2.5 particles for road paving workers applying conventional asphalt and crumb rubber modified asphalt. , 1998, Journal of exposure analysis and environmental epidemiology.