Case Study: Non-intrusive Concrete Fastener with 3D-Printed PA11 Deformation Layer
Non-intrusive Bonded Fastener Introduction
In this case study, we will examine a non-intrusive bonded fastener commercialized under the brandname C-BLOCK™. This revolutionary fastener is designed by Cold Pad – a French bonding and fastening solution provider. C-BLOCK™ is specifically designed for use in nuclear power plants because instead of drilling into the concrete wall it bonds to the wall. C-BLOCK™ is easy and safe to install and remove thanks to its non-invasive feature. This fastener is also able to sustain seismic
loading conditions to an intermediate deformation layer 3D-printed with Polyamide 11. The deformation layer is a component that seats between the substrate (wall, floor, ceiling) and the fastener.
Key challenges
When developing the intermediate deformation layer, Cold Pad engineers aimed to address the following material challenges:- Fastened assembly's durability
- Anti-seismic properties
- Removability
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