The Laboratory Environment, Water, Geomechanics and Building (LEEGO) of Civil Engineering Faculty at the University of Sciences and Technology Houari Boumediene (USTHB) and the Algerian Geotechnical Society (ALGEOS) are pleased to invite you to participate to the 6th International Seminar on INNOVATION AND VALORISATION IN CIVIL ENGINEERING & CONSTRUCTION MATERIALS, INVACO'2025. The seminar will take place on 11, 12, and 13 November 2025 at the USTHB in Algiers. This international seminar is a continuation of the fifth edition organized by ISET Sfax in November 2022 in Hammamet, Tunisia.

 The sixth edition of this seminar is intended for executives from companies, government departments, design offices, inspection offices, university researchers, teachers, and students. The event will provide a forum for discussing the various requirements and new developments in the field of construction sciences. The available topics cover the well-known areas of civil engineering, building materials, structures, and geotechnical engineering.