Zagreb, 16th May 2013. – At the University of Zagreb, Faculty of Architecture, within the fourth Zagreb Energy Week 2013, it was held a seminar Energy reconstruction and European projects. The seminar attended professor Ljubomir Miščević as moderator, the lecturers of Faculties of Architecture and Civil Engineering, representatives of the City Office of the City of Zagreb and other institutions, professional associations, student associations and companies. Project ECO-SANDWICH – Sustainable precast wall system of recycled aggregate was presented.