RT Conference Proceedings T1 4D Early Age Cement Hydration Analysis by Ptychographic X-ray Computed Tomography and Machine Learning Segmentation A1 Shirani, Shiva A1 Cuesta-García, Ana María A1 Díaz, Ana A1 García-Aranda, Miguel Ángel A1 Trtik, Pavel A1 Holler, Mirko K1 Cemento - Congresos K1 Gases de efecto invernadero - Reducción - Congresos K1 Cemento - Tomografía - Congresos K1 Cristalografía por rayos X - Congresos AB Cement manufacturing is responsible for ~7% of the anthropogenic CO2 emissions and hence, decreasing the CO2 footprint, in a sustainable, safe and cost-effective way, is a top priority. To fully understand the binder main properties and to decrease their CO2 footprints, a sound description of their spatially resolved mineralogy is necessary. Developing this knowledge is very challenging as about half of the volume of hydrated cement is a nanocrystalline component, calcium silicate hydrate (C-S-H) gel. Furthermore, other poorly crystalline phases (e.g. iron siliceous hydrogarnet or silica oxide) coexist. Here, we have used ptychographic X-ray computed tomography (PXCT) for understanding the first days of cement hydration with the final goal to improve the mechanical strength performances of low-CO2 cements. YR 2022 FD 2022-06 LK https://hdl.handle.net/10630/24632 UL https://hdl.handle.net/10630/24632 LA eng DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 19 ene 2026