Dr. António Santos Silva is a Principal Researcher of Materials Department at the National Laboratory for Civil Engineering (LNEC). He has a degree in Technological Chemistry from the Sciences Faculty of Lisbon University (1990) and a PhD in Civil Engineering from the School of Engineering of the University of Minho (2005). He is the Coordinator of the Laboratory for Mineralogical and Microstructural Characterization of Materials (U3M) at LNEC. He coordinated and participated in national and international research projects. Current highlights include his participation in H2020 project “ATRIUM—Advancing FronTier Research In the Arts and hUManities”, in the Collaborative Laboratory C5Lab—Sustainable Construction Materials Association, and in the Research Infrastructure ERIHS.pt—European Research Infrastructure for Heritage Science Portuguese Platform. His research areas focus on chemistry and materials engineering, in particular material durability and performance. He conducts studies on the diagnosis and prognosis of expansive chemical reactions in concrete, including mitigation and repair, and also on the characterisation of historic construction materials, conservation solutions, and the implementation of digital tools for the dissemination and preservation of architectural and archaeological heritage. He is member of RILEM Commissions and of European groups for preparing Guides for European Technical Approvals.