RT Conference Proceedings
T1 Multimodal study of unaltered cement hydrating pastes:  combined high-energy laboratory powder diffraction and microtomography.
A1 Fernández-Sánchez, Jaime
A1 Cuesta, Ana
A1 Shirani, Shiva
A1 Koufany, Imane
A1 Gómez-de-la-Torre, María de los  Ángeles
A1 Santacruz-Cruz, María Isabel
A1 Salcedo, Inés R.
A1 León-Reina, Laura
A1 García-Aranda, Miguel Ángel
K1 Cemento
K1 Tomografía
K1 Cristalografía por rayos X
AB Background: The study of the hydration pathways of Portland cement (PC) and cement blends presents significant challenges due to their multiphase nature and varying fineness. Quantifying the dissolution of initial crystalline and amorphous phases, along with the formation of new components, is crucial. Additionally, understanding microstructural changes with time is also essential.Techniques: We are developing a novel approach based on in situ measurements of cement pastes without sample conditioning. The pastes are injected in thick capillaries (2 mm of diameter) and just the ends are sealed. Sequential data acquisition is carried out through Mo-Kα1 laboratory X-ray powder diffraction (LXRPD) and microtomography (μCT) [1-2]. This methodology is based on scanning not only the same capillary but the same volume over time to minimize variability. The use of wide capillaries is pivotal for artefact avoidance, including self-desiccation, and ensuring excellent particle averaging.
YR 2024
FD 2024
LK https://hdl.handle.net/10630/32515
UL https://hdl.handle.net/10630/32515
LA eng
NO Abstract for scientific communication to 34th ECM
NO Agencia Estatal de Investigación. PID2020-114650RB-I00 grant which is co-funded by ERDFUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 12 abr 2026