Listar por autor "Koufany, Imane"
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Belite calcium sulfoaluminate cement early hydration: citric acid sensitivity.
Koufany, Imane; Santacruz-Cruz, María Isabel
; Bescher, Eric P.; García-Aranda, Miguel Ángel; Gómez-de-la-Torre, María de los Ángeles (2023)
Three buckets, corresponding to three selected samples, of the same type of belite calcium sulfoaluminate (BCSA) cements have been studied. These cements show very similar elemental and mineralogical compositions, and ... -
Characterisation of SCMs using the R3 test for low carbon cements.
Koufany, Imane; Redondo-Soto, Cinthya; Cuesta-García, Ana María; Santacruz-Cruz, María Isabel; Rodríguez-Ruiz, María Dolores; García-Aranda, Miguel Ángel; Gómez-de-la-Torre, María de los Ángeles[et al.] (2024)
The cement industry is working to reduce its environmental impact by replacing clinker with supplementary cementitious materials (SCMs), including pozzolanic materials. This study examines three types of pozzolanic materials: ... -
Combined use of laboratory X-ray diffraction and microtomography in early age cement hydration.
Cuesta-García, Ana María; Shirani, Shiva; Gómez-de-la-Torre, María de los Ángeles; Santacruz-Cruz, María Isabel; Morales-Cantero, Alejandro; Koufany, Imane; Redondo-Soto, Cinthya; Salcedo, Inés R.; León-Reina, Laura; García-Aranda, Miguel Ángel[et al.] (2023)
In situ laboratory X-ray powder diffraction (LXRPD) is widely used for studying cement hydration at early ages. However, this approach has limitations due to the intrinsic characteristics of the main methodologies (flat ... -
Combined use of X-ray diffraction and microtomography for accurate cement hydration studies.
García-Aranda, Miguel Ángel; Cuesta-García, Ana María; Shirani, Shiva; Gómez-de-la-Torre, María de los Ángeles; Santacruz-Cruz, María Isabel; Morales-Cantero, Alejandro; Koufany, Imane; Redondo-Soto, Cinthya; Salcedo, Inés R.; León-Reina, Laura[et al.] (2023)
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Effect of alkanolamines in kaolinitic calcined clays pozzolanic reactivity.
Koufany, Imane; Santacruz-Cruz, María Isabel; Rodríguez-Ruiz, María Dolores; Bescher, Eric P.; García-Aranda, Miguel Ángel; Gómez-de-la-Torre, María de los Ángeles[et al.] (2023)
Five kaolinitic clays with different amounts of kaolinite, ranging between ~70 wt% and ~30 wt%, have been studied to unravel the possible activation effect of alkanolamines on the aluminate fraction of calcined clays. ... -
General correlation between R3 test results and compressive strengths for five families of supplementary cementitious material
Koufany, Imane; Gómez-de-la-Torre, María de los Ángeles; Redondo-Soto, Cinthya; Santacruz-Cruz, María Isabel; Cuesta-García, Ana María; Gastaldi, Daniela; Canonico, Fulvio; Mazanec, Oliver; García-Aranda, Miguel Ángel[et al.] (Elsevier, 2025-06-04)
The incorporation of locally available supplementary cementitious materials (SCMs) in cement blends is essential for reducing the environmental impact of construction. However, assessing the pozzolanic kinetics, and thus ... -
Materiales puzolánicos para bajar las emisiones de CO2: soluciones locales para un problema global.
Gómez-de-la-Torre, María de los Ángeles; Koufany, Imane; Redondo-Soto, Cinthya; Guirado-Rodríguez, Beatriz; Benjumea-Rejano, Eva M.; Gómez-García, Francisco; Cuesta-García, Ana María; Santacruz-Cruz, María Isabel; Rodríguez-Ruiz, María Dolores; García-Aranda, Miguel Ángel[et al.] (2023)
In recent decades, the cement sector has been looking for solutions to reduce the carbon footprint, being one of the most promising strategies, the replacement of clinker with supplementary cementitious materials, SCMs. ... -
Mix and measure - Combining in situ X-ray powder diffraction and microtomography for accurate hydrating cement studies.
Shirani, Shiva; Cuesta-García, Ana María; Gómez-de-la-Torre, María de los Ángeles; Santacruz-Cruz, María Isabel; Koufany, Imane; Redondo-Soto, Cinthya; Salcedo, Inés R.; León-Reina, Laura; García-Aranda, Miguel Ángel[et al.] (Elsevier, 2023-11-14)
It is reported an innovative methodology based on in situ MoKα1 laboratory X-ray powder diffraction (LXRPD) and microtomography (μCT) avoiding any sample conditioning. The pastes are injected in 2.0 mm capillaries and the ... -
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 ... -
Multiphysics modeling of a wastewater treatment plant
Wastewater treatment plants (WWTP) are special structures designed to purify wastewater. The main objective of this work is to model the WWTP from Antequera (Malaga, Spain). The model consists of two combined simulations: ... -
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 ...