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KMITL Expo 2026
The
Study
on
the
Rejuvenation
of
Recycled
Asphalt
Concrete
Using
Natural
Rejuvenating
Agents
AI Translated
The Study on the Rejuvenation of Recycled Asphalt Concrete Using Natural Rejuvenating Agents

Details

This study proposes environmentally friendly alternatives using bio-oil and biochar derived from sugarcane bagasse, along with Fatty Acid Methyl Ester (FAME), to restore the performance of Reclaimed Asphalt Pavement (RAP) and promote sustainable waste utilization.

Asphalt pavements in Thailand frequently deteriorate due to moisture damage and rutting, leading to high maintenance costs and large amounts of Reclaimed Asphalt Pavement (RAP). This research addresses these issues by:

  • Utilizing Natural Rejuvenators: Using bio-oil and biochar from sugarcane bagasse, and FAME, to replace petroleum-based rejuvenators.
  • Restoring Performance: Improving the aged binder in RAP to meet standard performance requirements.
  • Experimental Testing: Evaluating mixtures containing 80% RAP and 20% virgin aggregates using Marshall Stability and Tensile Strength Ratio (TSR) tests under dry and wet conditions.

Objective

The research aims to determine the optimal proportions of natural rejuvenating agents and evaluate their effectiveness in enhancing the engineering properties of recycled asphalt concrete.

The objectives of this research are:

  1. To study the optimal proportions of the natural rejuvenating agent components.
  2. To evaluate the effectiveness of the rejuvenator in resisting rutting, indirect tensile damage, and moisture damage through engineering property testing of asphalt concrete.

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