Usually RTFOT instrument is used to measure short term aging for asphaltic binders under standard conditions.
Under what standard conditions, can we use RTFOT instrument to measure long term aging.
A pressure aging vessel (PAV) treatment of the RTFO binder is used to further age the binder. This simulates long term aging changes.
To simulate the usual long term ageing of asphalt binder (which accounts for 7 - 10 years of field performance) you need to run the RTFO first and do the PAV on the sample. However, to get better results closer to that of field it is better to do RTFO+2PAV as presented in literature (Bowers BF, Huang B, Shu X. Refining laboratory procedure for artificial RAP: a comparative study. Constr Build Mater 2014;52:385–90.)
Sorry you cant, you can justsimulat for mixing transporting and compaction. for long term you could do PAV test
Ramya answer is appropriate: you can, but it is not standardized. EN 12591 refer to PAV method, but if you obtain the same results as PAV, with a much longer work time at RTFOT, you could also try to propose such as a new approach which could avoid the PAV cost and maintenance. You should try, remember that some in EU are experimenting 3 times Rotating flask (DIN) , and they say it simulates PAV results.
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