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This innovative XiSPAN solution enhances the strength of masonry arch bridges, allowing for heavier use and faster speeds. The two-component polyurethane system, XiTRACK, reinforces bridges without disrupting operations, offering long-lasting benefits and improved structural integrity. By incorporating XiSPAN, bridges can withstand intense loads and distributed weights efficiently, ensuring safety and longevity.
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Masonry Arch Bridges • Over 25,000 on railways in the UK, 200,000 in Europe • Many over 100 years old • Increased tonnage and increased line speeds • Heavier use on diversionary freight routes
XiTRACK Concept • 2-component polyurethane, with designable properties • Mixed on-site at point of application and poured over ballast • Penetrates and captures ballast stones in a strong matrix • Utilise compressive strength of ballast • Tensile strength provided by polyurethane = +
Results Monitoring
Creating a ‘standard detail’ option, which would be over designed on most bridges but avoids the full design process for each structure Inclusion of waterproofing Development
Can be delivered now Can easily be incorporated with track renewals Spandrels can be protected with upstands or beams Removal of DTS ‘prohibited’ status Longer lasting remedial work such as pointing Operational Benefits