Instituto de Ciencias de La Construcción Eduardo Torroja

Characterization of urban surface materials through UAV-based thermal imaging and in situ data collection. Two case study in Madrid (Spain)

Beatriz Arranz, Raquel Burgos-Bayo, Julián Aguirre de Mata

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Hydration mechanisms of calcium sulfoaluminate (CSA) cements: the role of barium carbonate in sulfate-carbonate balance

Jinyan Shi, Xuezhen Zhu, Baoju Liu, Paula M. Carmona-Quiroga et autres

Abstract This study investigates the partial and total replacement of CaSO 4 by BaCO 3 in calcium sulfoaluminate (CSA) cement systems through a systematic compositional series to examine the coupled effects of decreasing initial sulfate content, carbonate incorporation, and BaSO 4 formation …

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Evaluating structural resistance and updating modeling uncertainties through testing

Miguel Fernández Ruiz, Peter Tanner, Nicola Tarque, Binbin Zhou et autres

Abstract The aging of infrastructure necessitates a robust and rational methodology for the assessment of existing structures. Design codes provide general models which cover different design scenarios and are thus overly conservative. Also, such design approaches lack field data and, if applied …

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Manufacturing and performance of eco-efficient cementitious storage tanks incorporating recycled demolition waste for thermal energy storage

I. Ramón-Álvarez, G.J. Moreno-Silva, E. Asensio, S. Sánchez-Delgado et autres

Sustainable thermal energy storage (TES) is critical for industrial heat management, where more than half of energy demand occurs at temperatures below 250 °C. To bridge the gap between material design and practical application, this study conducted an initial laboratory-scale cyclic evaluation …

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Preliminary trials on decontamination of Tributyltin (TBT) in a dredged sediment using combination of mechanochemical and electrokinetic techniques

Jorge Ruiz-Fernandez, I. Llorente, Elean Alvarez, Roman Nevshupa et autres

Abstract Purpose The objective of this research was to assess the effectiveness of a combined remediation strategy - electrokinetic treatment coupled with mechanochemical processes (ultrasound and grinding) and fluid recirculation - for the removal of tributyltin (TBT) from marine sediments. TBT is …

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Full-scale experimental assessment of a radiant-capacitive cooling system driven by nocturnal and diurnal radiative cooling

Eduardo González-Cruz, Gloria Alemany Pérez, Borja Frutos, Carmen Alonso et autres

ABSTRACT We demonstrate a full-scale radiant-capacitive cooling system (RCCS) capable of maintaining continuous thermal comfort during hot summer conditions without using mechanical refrigeration, thanks to a combination of sky radiators with water-filled radiant-capacity ceiling panels. Tested in twin full-scale cells under clear-sky …

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Time-dependent rheology and pore-structure evolution of ultra-low clinker cement based foamed pastes

Luchang Xiong, Olga Maltseva, Zhijun Wan, A. Palomo

This study investigates the time-dependent rheology, in-situ foaming behavior, pore-structure evolution and mechanical performance of coal-ash-based ultra-low clinker cement pastes. Sodium sulfate, sodium citrate and their combined use were compared as activators, while polycarboxylate superplasticizer and H 2 O 2 dosages were …

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VISUALIZANDO LA POBREZA ENERGÉTICA EN EL HOGAR A TRAVÉS DE LA INTELIGENCIA ARTIFICIAL GENERATIVA (IAG)

Teresa Cuerdo Vilches, M.A. Navas

In a context where climate change intensifies extreme phenomena, such as heat and cold waves, this study explores the perception of energy poverty in the home. Using software for generative artificial intelligence (GAI), such as DALL-E and ChatGPT, it seeks to visually …

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Evolution of the microstructure of limestone-calcined clay cement pastes exposed to CO2

A. Pachón- Montaño, L. González-Panicello, M.C. ALONSO, F. Puertas et autres

The aim of this study was to gain a deeper understanding of the carbonation resistance of binary and ternary calcined clay-blended cements, and to investigate how this resistance correlates with their microstructure and phase assemblage. A lower carbonation resistance was observed for …

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CaCl2-driven phase instability in low-carbon calcium sulfoaluminate binders

Pilar Padilla-Encinas, Luís Urbano Durlo Tambara Júnior, A. Fernández‐Jiménez

This work studies the effect of CaCl 2 , at 5 wt.% and 20 wt.%, on the hydration of a commercial calcium sulfoaluminate clinker (KCSA) and cement (CSA). For this purpose, CSA and KCSA pastes were prepared with CaCl 2 substitution and …

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Eriochrome Cyanine R revisited: a standardized myelin stain protocol for thick sections of the central & peripheral nervous system across species, pathologies and disease models

Maximiliano Torres, Fernando de Castro, Giselle Prunell

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Immobilisation of decontamination sludge in low-carbon cement: a study of early-age physico-mechanical behaviour of two alkali-activated slag-based waste forms

M. Criado, Javier Puentes, Elena Torres, Laura Ramallo et autres

Decommissioning activities generate large volumes of low- and intermediate-level radioactive waste (LILW) that require suitable disposal routes. Although immobilisation in Portland cement matrices is the standard conditioning method, certain wastes with an acidic nature, with high contents of chelating agents and/or surfactants, …

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