Listar por autor "Cuesta, Ana"
Mostrando ítems 1-12 de 12
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4D nanoimaging of Portland cement hydration.
Shirani, Shiva; Cuesta, Ana; Díaz, Ana; Trtik, Pavel; Holler, Mirko; Rack, Alexander; Lukic, Bratislav; Brun, Emmanuel; García-Aranda, Miguel Ángel
[et al.] (2024)
Portland cements are environmentally contentious, accounting for ≈8% of the anthropogenic CO2 emissions. The understanding of the cement hydration reactions (dissolution and precipitation processes) is important to contribute ... -
Advanced 3D nanoimaging of cement paste hydration using synchrotron Xray ptychographic tomography
Shirani, Shiva; Cuesta, Ana; Santacruz-Cruz, María Isabel; Gómez-de-la-Torre, María de los Ángeles; Diaz, Ana; Trtik, Pavel; Holler, Mirko; García-Aranda, Miguel Ángel[et al.] (2024-06-25)
Hydration of Portland cements (PC) is a complex phenomenon caused by the presence of multiple components with multi-length scale variability. To investigate this complicated process, state-of-theart 3D nanoimaging ... -
Bentonite-based LC3 low carbon cement and activation by C-S-H nucleation seeding
Vallina, Diego; Rodríguez-Ruiz, María Dolores; Morales-Cantero, Alejandro; Cuesta, Ana; Santacruz-Cruz, María Isabel; Dalla-Libera, Alessandro; Borralleras, Pere; Dhers, Sébastien; Schwesig, Peter; Mazanec, Oliver; García-Aranda, Miguel Ángel; Gómez-de-la-Torre, María de los Ángeles[et al.] (Elsevier, 2025-03-31)
This study explores the feasibility of using calcined bentonitic clays in LC3-50 binders. Four commercially available bentonite rocks were thermally activated and milled to a Dv,50 of 12 ± 2 μm. Their pozzolanic activities ... -
Enhancing fluidity and mechanical properties in Limestone Calcined Clay cements with one-third Portland clinker content
Morales-Cantero, Alejandro; Vallina, Diego; Gómez-de-la-Torre, María de los Ángeles; Cuesta, Ana; Santacruz-Cruz, María Isabel; Dalla-Libera, Alessandro; Borralleras, Pere; Dhers, Sebastien; Schwesig, Peter; Mazanec, Oliver; García-Aranda, Miguel Ángel[et al.] (Elsevier, 2024)
Limestone Calcined Clay Cements (LC3) are attracting considerable attention due to their low CO2 footprints and relatively fast hydration kinetics. LC3-50 formulations (approximately 50% Portland clinker, 30% kaolinitic ... -
Mejoras en las resistencias mecánicas de cementos con bajo contenido de clínker.
Morales-Cantero, Alejandro; Vallina, Diego; Gómez-de-la-Torre, María de los Ángeles; Cuesta, Ana; Santacruz-Cruz, María Isabel; García-Aranda, Miguel Ángel[et al.] (2024)
Los cementos con arcilla calcinada y piedra caliza, conocidos como LC³ (del inglés, Limestone calcined clay cement) permiten la reducción de las emisiones de CO₂ hasta en un 55%. Las proporciones de las sustituciones ... -
Mix and measure II: joint high-energy laboratory powder diffraction and microtomography for cement hydration studies
Fernández-Sánchez, Jaime; Cuesta, Ana; Shirani, Shiva; Redondo-Soto, Cinthya; Gómez-de-la-Torre, María de los Ángeles; Santacruz-Cruz, María Isabel; Salcedo, Inés R.; León-Reina, Laura; García-Aranda, Miguel Ángel[et al.] (A. H. Liu, HPSTAR and Harbin Institute of Technology, People's Republic of China, 2024)
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Mix and measure II: joint high-energy laboratory powder diffraction and microtomography for cement hydration studies
Fernández-Sánchez, Jaime; Cuesta, Ana; Shirani, Shiva; Redondo-Soto, Cinthya; Torre, Ángeles G. de la; Santacruz-Cruz, María Isabel; Salcedo, Inés R.; León-Reina, Laura; García-Aranda, Miguel Ángel[et al.] (Wiley, 2024)
Portland cements (PCs) and cement blends are multiphase materials of different fineness, and quantitatively analysing their hydration pathways is very chal- lenging. The dissolution (hydration) of the initial crystalline ... -
Multimodal study of unaltered cement hydrating pastes: combined high-energy laboratory powder diffraction and microtomography.
Fernández-Sánchez, Jaime; Cuesta, Ana; Shirani, Shiva; Koufany, Imane; Gómez-de-la-Torre, María de los Ángeles; Santacruz-Cruz, María Isabel; Salcedo, Inés R.; León-Reina, Laura; García-Aranda, Miguel Ángel[et al.] (2024)
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 ... -
Reactivity of belite in calcium sulfoaluminate-based cements
Pérez-Bravo, Raquel; Koufany, Imane; Cuesta, Ana; Bescher, Eric P.; García-Aranda, Miguel Ángel; Santacruz-Cruz, María Isabel; Gómez-de-la-Torre, María de los Ángeles[et al.] (Springer Nature, 2025-01-15)
The hydration behavior of belite phase in different cements is not well understood. Belite hydrates very slowly but there are reports with faster hydration kinetics. Here, the hydration behavior of belite phase in a ... -
Reactivity of belite in calcium sulfoaluminate‑based cements
Pérez-Bravo, Raquel; Koufany, Imane; Cuesta, Ana; Bescher, Eric P.; García-Aranda, Miguel Ángel; Santacruz-Cruz, María Isabel; Gómez-de-la-Torre, María de los Ángeles[et al.] (Springer, 2025)
The hydration behavior of belite phase in different cements is not well understood. Belite hydrates very slowly but there are reports with faster hydration kinetics. Here, the hydration behavior of belite phase in a ... -
Supplementary cementitious material based on calcined montmorillonite standards
Vallina, Diego; Rodríguez-Ruiz, María Dolores; Santacruz-Cruz, María Isabel; Cuesta, Ana; García-Aranda, Miguel Ángel; Gómez-de-la-Torre, María de los Ángeles[et al.] (Elsevier, 2024-05-03)
The most effective approach to mitigating the environmental impact of cement production is through the uti- lisation of pozzolanic materials to prepare blended cement. Calcined kaolinitic clays are one of the most promising ... -
X-ray near-field ptychographic nanoimaging of cement pastes
Shirani, Shiva; Cuesta, Ana; Santacruz-Cruz, María Isabel; Torre, Ángeles G. de la; Díaz, Ana; Trtik, Pavel; Holler, Mirko; García-Aranda, Miguel Ángel[et al.] (Elsevier, 2024)
The hydration processes of Portland cements (PC) and blends are complicated as there are many components with great heterogeneity at different length scales. Thus, 3D nanoimaging techniques with high spatial resolution and ...