Porous friction course

As it was mentioned, PA or OGFC is used in surfacing airport pavements. FAA standards call this type of mixture porous friction course (PFC) mixture. 

Source FAAAC 150/5370-1 OF, Part 5, Item P-402, Porous friction course FAA 201 lb. 

FAA. 2011b. AC 150/5370-10F, Part 5, Item P-402. Porous Friction Course. Washington, DC FAA. FAA. 2011c. AC 150/5370-10F, Part 5, Item 403. Plant Mix Bituminous Pavements (Base, Levelling or Surface Course). Washington, DC FAA. 

In the United Kingdom, TRL trials using porous friction course mixture gradation as a crack-relief layer on military airfields have shown good performance in resisting reflection cracking, even with a crack-relief layer as thin as 20 mm (Coley and Carswell 2006). 

Three types of RA have been used traditionally porous friction course, and gap and open graded asphalt concretes. 

For the surface layer, in particular, the asphalts most commonly used nowadays are (a) asphalt concrete for very thin layers (AC-VTL), (b) porous asphalt (PA), (c) open-graded friction course mixture (OGFC), (d) stone mastic asphalt (SMA), (e) single or double surface dressing (S-SD or D-SD) and (f) micro-surfacing (MS). Table 10.17 gives the comparative properties/characteristics for all the abovementioned surfacing materials. 

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