Good News Notes: “Holcim CEO Jan Jenisch explains how 3D-printed concrete bridge Striatus aims to showcase how to build with less material without compromising performance in this video Dezeen produced for the building materials company. Striatus is a 16-metre-long 3D-printed concrete footbridge built by Block Research Group at Swiss university ETH Zurich and the Computation and Design Group at Zaha Hadid Architects (ZHA CODE), in collaboration with concrete…