• Lay Boon Tan Faculty of Civil Engineering, Universiti Teknologi Malaysia,81310 UTM Johor Bahru, Johor, Malaysia
  • Milad Hafezolghorani bDura Technology Sdn. Bhd., Lot 304993, Jalan Chepor 11/8, Pusat Seramik Fasa 2, Ulu Chepor, Chemor, Perak, 31200, Malaysia
  • Azman Mohamed Faculty of Civil Engineering, Universiti Teknologi Malaysia,81310 UTM Johor Bahru, Johor, Malaysia
  • Yen Lei Voo Dura Technology Sdn. Bhd., Lot 304993, Jalan Chepor 11/8, Pusat Seramik Fasa 2, Ulu Chepor, Chemor, Perak, 31200, Malaysia
  • Balamurugan A. Gopal Public Works Department, Kuala Lumpur, Malaysia
  • Khaled Ghaedid Research and Development Center, PASOFAL Engineering Group, 52200, Kuala Lumpur, Malaysia



Ultra-high-performance concrete, Link slab, Durability, Expansion joints, Bridge


Conventional expansion joints in road bridges often suffer from issues like leakage, debonded seals, concrete damage, and short service life. To address these problems, a solution involving flexible link slabs using normal strength concrete (NSC) was proposed. While this method can enhance serviceability and reduce maintenance costs, it lacks durability and tensile strength. Recent interest has focused on cast-in-situ ultra-high performance concrete (UHPC) link slabs due to their exceptional mechanical properties, early strength, durability, ductility, and energy-absorption capabilities. However, there is limited information on their field implementation. To address this gap, a pilot UHPC link slab was designed and implemented to replace a damaged bituminous plug expansion joint in a Malaysian road bridge. The pilot link slab followed New York State Department of Transport (NYSDOT) guidelines and used a high early strength UHPC mix with minimal shrinkage through the combination of expansive agents and shrinkage-reducing admixture (SRA). Monitoring the project over two years has shown no performance concerns with the UHPC link slab. This paper provides a comprehensive overview of the construction process, along with experimental results on the mechanical properties and shrinkage characteristics of the new UHPC.


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