• Publications
  • Influence
Hydrothermal alteration of “La Serrata” bentonite (Almeria, Spain) by alkaline solutions
Abstract Bentonite and concrete are considered as backfilling and sealing materials in a deep geologic repository of high-level radioactive waste (HLRW). The pH of the pore waters leached duringExpand
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Reaction kinetics of FEBEX bentonite in hyperalkaline conditions resembling the cement–bentonite interface
Abstract Bentonite of the Serrata de Nijar (Almeria, Spain) and concrete made with an ordinary portland cement (OPC) are candidate materials to be used as engineering barriers in the high levelExpand
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Containment and attenuating layers: An affordable strategy that preserves soil and water from landfill pollution.
The performance of a widely distributed natural clay to attenuate contaminants released from an old landfill was investigated. The objective is to evaluate its potential use as a barrier for wasteExpand
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Geochemical constraints on the stability of zeolites and C–S–H in the high pH reaction of bentonite
Abstract Cement–bentonite interactions will occur in deep geological repositories for high level radioactive waste. We performed laboratory experiments in order to constrain some previous geochemicalExpand
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Reactivity of the cement-bentonite interface with alkaline solutions using transport cells
Abstract Clayey formations are considered as suitable host rocks to develop a Deep Geological Repository (DGR) for nuclear wastes. A concrete ring, located between the clayey formation and theExpand
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Chemistry of Mg Smectites in Lacustrine Sediments from the Vicalvaro Sepiolite Deposit, Madrid Neogene Basin (Spain)
The chemical and structural properties of Mg smectites in the Vicálvaro sepiolite deposit have been studied in detail. The characterization was performed on different size-fractions of selectedExpand
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The role of smectite composition on the hyperalkaline alteration of bentonite
Abstract Cementitious materials will act as a source of alkaline fluids modifying the mineralogy, pH and physical–chemical properties of bentonite barriers implemented for long-term pollutantsExpand
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Reaction and diffusion of cementitious water in bentonite: Results of ‘blind’ modelling
Abstract The potential deleterious geochemical interactions of clay with cement/concrete may provide a constraint on the use of the latter material in deep geological disposal facilities forExpand
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Precipitation of chlorite-like structures during OPC porewater diffusion through compacted bentonite at 90 °C
Abstract The reactivity between concrete and bentonite is a key issue in the performance of a deep geological repository for radioactive waste. The long-term reaction of alkaline solutionsExpand
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The alkaline reaction of FEBEX bentonite: a contribution to the study of the performance of bentonite/concrete engineered barrier system
Desde 1997, el desarrollo de dos proyectos de la Union Europea, Effects of Cement On CLAY barrier performance (ECOCLAY, 1997-2000) y ECOCLAY phase II (2000-2003), ha permitido abordar laExpand
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