The 3D-printed structure - a type of retaining wall known as a headwall - has been installed on the A30 in Cornwall , where it is providing real-time information thanks to Cambridge-designed sensors embedded in its structure. The sensors provide up-to-date measurements including temperature, strain and pressure. This 'digital twin' of the wall could help spot and correct faults before they occur. Headwall structures are normally made in limited shapes from precast concrete, requiring formwork and extensive steel reinforcement.

https://www.miragenews.com/cambridge-researchers-aid-in-creating-3d-1046478/

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