REJUPAVE
TECHNOLOGY FOR BITUMINOUS PAVEMENT RECYCLING
Rejupave ® , a pioneering technology co-developed by Sh. Satish Pandey, Senior Principal Scientist at CSIR-Central Road Research Institute (CSIR-CRRI), in collaboration with Verma Industries, addresses the critical challenge of restoring oxidized bitumen in RAP. It employs a liquid bio-based asphalt modifier cum rejuvenating agent that replenishes the essential components of the aged binder lost due to both short-term (during hot mix production) and long-term (field exposure) aging.
Bituminous mixes used in road surfacing consist of aggregates and a bitumen binder. Over time, exposure to environmental conditions leads to oxidative hardening of the bitumen, resulting in surface cracks and pavement distresses such as fatigue cracking, potholes, and raveling. Recycling of bituminous layers using Reclaimed Asphalt Pavement (RAP) has emerged as an effective solution to restore the riding quality and structural integrity of aged pavements.
By restoring the viscoelastic properties of the binder and maintaining the optimal Asphaltene-to-Maltene ratio, REJUPAVE® improves the rheological behavior of the mix and allows for high RAP content in hot mix recycling without compromising performance. This sustainable and cost-effective innovation significantly contributes to greener road construction practices.
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