Recently, Professor Luc Boehme of the of LeuvenUniversity of Belgium come to our college,and he did academic lectures for civil engineering students in our college.The lecture topic is “Recycled Concrete Aggregates in Recycling Concrete”.The lecture revolves around the recycling use of materials and combined with the engineering examples.The teachers and students who participate in the lecture  benefit a lot.After the lecture, Professor Boehme also conducted in-depth exchanges on the issues raised by students and teachers.