After testing, it meets the standards of GA 422-2003 "Riot Shield" and "Riot Shield". [Technical Parameters] Specification: 990 × 560 × 3.5mm Material: Made of high-quality transparent polycarbonate PC material Transmittance: 84% Impact resistance strength: 147J kinetic energy impact meets the standard Puncture resistance: GA68-2003 standard test tool 20J kinetic energy puncture meets the standard Grip connection strength: ≥ 500N Arm strap connection strength: ≥ 500N Mass: 3.6kg riot shield skyshields(suzhou)thermoforming tech.co.ltd , https://www.skyshields.com
On July 31, 2008, this photograph was taken showcasing the iconic Hesburgh Library at Notre Dame University in Notre Dame, Indiana. Known for its striking mosaic titled "The Word of Life," the library features a depiction of Christ as a teacher, encircled by saints and scholars. Interestingly, this mosaic has earned the nickname "Touchdown Jesus" due to its alignment with the end zone of Notre Dame’s football stadium, creating the illusion that Jesus is giving a celebratory signal.
As you gaze at the "Touchdown Jesus" from the Notre Dame stadium, it’s hard not to be captivated by its grandeur. The image captures the essence of both religious reverence and athletic pride, making it a unique blend of two pillars of Notre Dame's identity.
Another fascinating angle of the Hesburgh Library is seen in the second image, where the structure is reinforced with HJ3 Carbon Fiber. This addition not only strengthens the building but also ensures its longevity against environmental factors.
The Hesburgh Library, originally built in 1963 using concrete blocks, was initially a marvel of architectural design. However, over time, the lack of overlapping joints in the concrete blocks, particularly in the air handling system, posed a significant challenge. When the fans activated, the fluctuating air pressure caused the structure to flex, leading to visible cracks in the mortar joints.
Recognizing the potential high costs associated with replacing the entire wall, Notre Dame sought a more economical solution. They decided to reinforce the walls with carbon fiber, which would stabilize the cracks and restore structural integrity. The guidance of Rick Keller, P.E., from Keller Engineering was instrumental in making this decision. The certified installer, 3D Structural Solutions, executed the work meticulously.
To avoid disrupting library operations, the project was scheduled during the university’s winter break. The process included cleaning the surface, injecting the cracks, priming the area, and applying carbon fiber fabric strips. Outside the repair zones, structural bonding cement was used, and a steel webbing layer was added to prevent further deflection due to air pressure changes.
Following the installation, the air handling system was restarted for testing. The results were conclusive—no deflection occurred. This approach not only preserved the library’s aesthetic appeal but also saved considerable time and money compared to a full-scale renovation. Touchdown Jesus remains a symbol of Notre Dame’s enduring legacy, now fortified with the robustness of carbon fiber.
For those interested in learning more about this restoration project or exploring other HJ3 applications, feel free to contact us or call our toll-free number at 1-877-303-0453. HJ3 specializes in carbon fiber and glass fiber composites tailored for various uses, including HJ3 Civilâ„¢ for commercial purposes, CarbonSealâ„¢ for industrial needs, and StrongHoldâ„¢ for residential requirements.
This restoration project is a testament to Notre Dame’s commitment to preserving its historical landmarks while embracing modern solutions to ensure their continued vibrancy.
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