Harnessing Hydrodemolition for Airport Infrastructure: JMT's Innovative Approach at Philadelphia International Airport

By: Darren D'Achille, PE

At JMT, we continually strive to push the boundaries of engineering excellence. Recently, our engineers, in collaboration with the Philadelphia International Airport (PHL) team, embarked on an enlightening site visit to experience the power and efficiency of concrete hydrodemolition firsthand.

Hydrodemolition is a widely used technique for concrete removal, typically employed on bridge decks, parking structures, and structural columns. While its application is common in various infrastructure projects, the Terminal F heated pavement repair project at PHL marks a notable first for utilizing this technology in recent times at the airport. To ensure a comprehensive understanding of the removal process, JMT organized an on-site training session for both PHL and JMT engineers at a roadway resurfacing project.

The Terminal F heated pavement project presents unique challenges, requiring the removal of a failed existing hydronic pavement heating system from reinforced concrete pavement. This must be accomplished without compromising the structural integrity of subsurface piles or adjacent retaining walls. To meet these demands, JMT proposed hydrodemolition for a partial-depth removal of the concrete slabs and existing piping, followed by the installation of new hydronic piping and a bonded concrete overlay. This innovative approach will restore a critical pavement heating system, ensuring safe travel for tug carts during winter.

During the site visit, the team observed the hydrodemolition process in action, including the physical removal of concrete and essential aspects of water reclamation and stormwater system protection. This hands-on experience provided valuable insights into the efficiency and precision of hydrodemolition technology.

We extend our gratitude to the Maryland State Highway Administration and our partners at Wagman, Inc. for hosting this informative demonstration. Their support and collaboration are instrumental in advancing our engineering capabilities and delivering exceptional solutions for complex projects.

At JMT, we are committed to leveraging cutting-edge technologies to enhance infrastructure and ensure the safety and efficiency of our transportation systems. Stay tuned for more updates on our innovative projects and industry insights.