ICED2023 – Best Paper / Best Poster The best paper of ICED 2023 is: Elaboration of a sustainable bottom ash geopolymer material, by Joseph Abdayem, Marianne Saba and Georges Aouad The best poster of ICED 2023 is: Indoor environmental quality assessment of a student housing facility in an Algerian university, by Narimene Cherienne and Sarah Benharkat