Abstract
In the bitumen recycling process, aged binder from reclaimed asphalt pavement material (RAPM) and virgin binder (which is added externally) get blended. The extent of blending depends on several factors. In this study, RAPM sample is kept in a pool of virgin binder and the extent of blending is studied (by taking samples from the blended binder) with the variation of temperature and RAPM size. Subsequently, the extent of blending is studied for two different RAPM samples of different ageing levels. Appropriate level of temperature and adequate mixing (by stirring) is maintained so as to create a favourable condition for blending between the aged and virgin binder to occur. After the test, the blended binder is retrieved and its chemical composition is analysed using FTIR spectroscopy, and the results are compared.
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