Utilizing Ultra-High Performance Concrete Overlay for Road Pavement Repair and Strengthening Applications


  • Lay Boon Tan Faculty of Civil Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
  • Milad Hafezolghorani Dura Technology Sdn. Bhd., Chemor, Perak, Malaysia
  • Azman Mohamed Faculty of Civil Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
  • Khaled Ghaedi Research and Development Center, PASOFAL Engineering Group, Kuala Lumpur, Malaysia
  • Yen Lei Voo Dura Technology Sdn. Bhd., Chemor, Perak, Malaysia




UHPC overlay, fiber reinforced pavement, repair, strengthening, hot mixed asphalt


This study aims to develop a new thixotropic ultra-high-performance concrete (UHPC) overlay for the repair and strengthening of damaged hot mix asphalt (HMA) pavements. The overlay is purposely designed to accommodate the roadway slope of up to 10% due to presence of viscosifying agent materials. The original UHPC materials are comprised of granite aggregate, ultra-fine calcium carbonate, shrinkage-reducing admixture, viscosifying agent, and expansive agent. The study is conducted with three sets of samples provided and considers thixotropic and mitigated shrinkage properties through comparing control (non-thixotropic) overlay 1 (thixotropic), and overlay 2 (thixotropic) mixtures. Based on the obtained results, only overlay 1 corresponds to the minimum requirement for pavement rehabilitation, with 160-200 mm flowability and -545.3 µm/m free shrinkage. As a result, an average 50 mm thick overlay 1 is selected to repair a damaged HMA pavement (1800 m2), while the field implementation procedures and drawing details are also presented in this paper.


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How to Cite

Lay Boon Tan, Milad Hafezolghorani, Azman Mohamed, Khaled Ghaedi, and Yen Lei Voo, “Utilizing Ultra-High Performance Concrete Overlay for Road Pavement Repair and Strengthening Applications”, Adv. technol. innov., vol. 8, no. 4, pp. 290–302, Sep. 2023.