Durability of asphalt modified with crumb rubber
   Why
asphalt
 rubber?
20 cms. of traditional asphalt after 13 years in service
12.5 cms. of asphalt rubber after 13 years in service
Test in Tucson, AZ
1988
Preparations for asphalt rubber
2000
5 cms. overlay of asphalt rubber
after 12 years
Less pollution!
Eliminates waste tyre burning
Higher safety!
Better skid resistance
Higher durability!
Pavements which last longer
Less susceptible to icing
Less water spray and better skid resistance
Test in
Los Angeles, CA
Asphalt rubber
Traditional asphalt
1990
After 4 years, with a 3 cms. overlay of asphalt rubber
1993
After 7 years, with a 3 cms. overlay of asphalt rubber
1996
After 10 years, with a 3 cms. overlay of asphalt rubber