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NEXCO総研

Development of durable porous asphalt mix – Hybrid Mix

 
The Hybrid Mix offers sufficient surface macrotexture similar to that of porous asphalt and interior impermeability equal to that of stone mastic asphalt (SMA).
Although its draining function is somewhat low, the pavement provides both superior skid-resistance and durability.
 
 

 

 
     
     
  Figure-1 Rutting test using Accelerated Loading and Environmental Simulator (ALES) Figure-2 Aggregate stripping test using ALES with chain  
 
Hybrid asphalt pavement offers sufficient rutting resistance equal to that of porous asphalt. (Figure-1)
In addition to rutting resistance, the mixture also provides superior resistance against aggregate stripping due to tire chain in winter time. (Figure-2)