First 3D-printed headwall trialled on National Highways’ A30 road upgrade

The first-ever 3D-printed concrete headwall is being trialled as part of the construction process on National Highways’ A30 Chiverton to Carland Cross upgrade in Cornwall. National Highways explains that Headwall structures are traditionally made from precast concrete, utilising extensive steel reinforcement and limited in their shape, but the 3D printed curved headwall, which requires no […]