First I want to choose some rejuvenators, then by analyzing FTIR results, choose the best one. what is the best considering index from results of FTIR test for better performance of rejuvenators(or oil) in capsules ?
Mohammad Amin Hosseinzad Derakhshan
I would advise you to get the spectrum of pure hyaluronic acid and determine the best anti-aging agents by its content.
Hi Amin,
Carbonyls and sulfoxide functional groups in the FTIR spectrum of asphalt clearly determine the aging of asphalt. Determine the chemical aging index (CAI) for asphalt modified with each rejuvenator. Lower the CAI better the aging resistance.
Use the following as an example it could help you understand
Article Application of surface-modified silica nanoparticles with du...
The relationship between the self-healing index from mechanical properties with the FTIR chemical results can be established. And the FTIR test can be used to predict the self-healing properties of bitumen considering the diffusion process of rejuvenator.
according to Article Performance characteristics of asphalt binders modified with...
The carbonyl index analysis revealed the antiaging behavior of asphalt binders.
Apart from Carbonyl and sulphoxide groups, one can have a look into aromatic and aliphatic indices. With proper rejuvenation of asphalt, these indices will increase.
Amount of carbonyl and sulfoxide compounds are widely used as an indicator of ageing in asphalt ageing. You can further calculate Ageing Index to quantify the effect of ageing and rejuvenation on asphalt binders.
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