Production and placement

The production and placement of OGFC, as well as sampling and testing during construction, and the construction procedure are carried out in accordance to ASTM D 6932 (2008). 

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. 

According to AC 150/5370-10F, Item P-402 (FAA 2011b), the binder should be viscosity-graded bitumen (asphalt cement) with a synthetic rubber (polymer) added at a percentage of not less than 2%, by mass of bitumen. The properties of the modified bitumen should comply with the requirements of Table 5.21. 

The aggregates should consist of crushed stone, crushed gravel or crushed slag (air cooled, blast furnaced) with or without natural sand or other inert, finely divided mineral aggregate, provided they meet the requirements summarised in Table 5.22. 

After thin film oven test (test on residue) 

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