Bitchem RAP Rejuvenator

RAP is processed old asphalt; rejuvenators help restore RAP binder

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  • Product Overview
  • Product Description
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RAP Rejuvenator

Recycled Asphalt Pavement (RAP) is defined as removed and processed existing asphalt pavement materials. The use of rejuvenators is one of approaches for restoring the properties of RAP binder

The use of Reclaimed Asphalt Pavement (RAP) in asphalt mixtures has several benefits, such as reducing the consumption of virgin materials and protecting the environment. However, as high RAP content (e.g., 50%) is used, asphalt mixtures become brittle so that premature failure (cracking) may occur. To improve the cracking resistance of asphalt mixtures with high RAP contents, one of the approaches considered is the use of rejuvenators. Such rejuvenators, when used in high RAP asphalt mixtures, counteract the effects of the aged RAP binder and may have an impact on the volumetric properties of the mixtures.

Rejuvenators generally contains a high proportion of maltene constituents—napthenic or polar aromatic fractions—that help re-balance the composition of the aged binder. The purpose of using rejuvenator is to improve the maltene content of the RAP binder that has been lost due to oxidation over years of use. The lower maltene content in RAP binder causes the asphaltene component to flocculate, which leads to a greater susceptibility to cracking. Increasing the maltene content through the addition of rejuvenators allows the asphaltenes to move freely, improving the flow properties of the binder.

The use of RAP in asphalt mixtures reduces the consumption of virgin materials (asphalt and aggregates) and saves landfill space. The purpose of using rejuvenator is to improve the maltene content of the RAP binder that has been lost due to oxidation over years of use.


Some applications are as follows: 

  • Permeates rapidly into aged bitumen restoring functional performance
  • Reduces the need for virgin bitumen
  • Reduces mix costs with no impact on performance
  • Compatible with bitumen world-wide
  • Compatible with all existing production machinery
  • Supports worker safety with responsible solutions
  • Reduces dependence on fossil fuels
  • Keeps Reclaimed Asphalt Pavement and Shingles (RAP/RAS) out of landfills
  • Lowers greenhouse gas emissions, carbon footprint, and overall energy consumption

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