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Bauxite
Related publications (32)
Perspective Alkaline electrolyzers: Powering industries and overcoming fundamental challenges
For the sustainable development of the renewable hydrogen sector, alkaline electrolysis appears to be a technology of choice. Nevertheless, despite its long history that showed its reliability in the industrial field and despite the traditional belief from ...
Cell Press2024The effect of paste composition, aggregate mineralogy and temperature on the pore solution composition and the extent of ASR expansion
Karen Scrivener, Barbara Lothenbach, Mahsa Bagheri
The reaction kinetics of the alkali silica reaction depends on the composition of the pore solution. The evolution of the pore solution composition in different cement pastes and concretes was studied. Pastes containing silica fume or metakaolin had the lo ...
SPRINGER2022The thermally activated deformation behaviour of single-crystalline microcast aluminium wires
Andreas Mortensen, Léa Deillon, Suzanne Godelieve Alphonsine Verheyden
A microcasting process is used to produce high aspect ratio ( > 30) monocrystalline pure aluminium wires with a diameter between 14 and 115 mu m. The role of thermal activation in the plastic deformation of these microwires is measured by means of (single) ...
PERGAMON-ELSEVIER SCIENCE LTD2022The influence of sulfate addition on hydration kinetics and C-S-H morphology of C3S and C3S/C(3)A systems
Karen Scrivener, Franco Alberto Zunino Sommariva
A comprehensive understanding of hydration kinetics, sulfate requirement and phase assemblage of Portland cement is crucial for further optimization of early-age performance, especially when part of cement is replaced by mineral additions in blended cement ...
PERGAMON-ELSEVIER SCIENCE LTD2022Hydration and durability of fast hardening binders incorporating supplementary cementitious materials
The use of supplementary cementitious materials (SCMs) is widely considered the most promis-ing approach to reduce CO2 emissions relative to cement production. SCMs are not commonly present in binders used for special applications. On the other hand, due t ...
EPFL2022Factors influencing the sulfate balance in pure phase C3S/C(3)A systems
Karen Scrivener, Franco Alberto Zunino Sommariva
Understanding the sulfate balance mechanism of cement is needed for an effective use of sustainable blended cements. Pure phase systems allow to study the interaction between sulfate and each of the phases involved in early age hydration separately. This p ...
2020Increasing the kaolinite content of raw clays using particle classification techniques for use as supplementary cementitious materials
Karen Scrivener, Franco Alberto Zunino Sommariva
The adoption of blended cements to reduce the carbon footprint has increased significantly over the last decades. Clays containing kaolinite are a promising choice due to their widespread availability. Kaolinite content is the major factor controlling the ...
ELSEVIER SCI LTD2020TiO2- based ceramics, from basic science to applications
Nanomaterials and nanoparticles are nowadays used in a wide range of applications; from sunscreens, paint and food industry to catalytic processes, lighting, TV's and displays, their presence is percolating in our daily life. New applications rise every da ...
EPFL2020Trellises of Molecular Oxygen on Anatase TiO2(101)
Klaus Kern, Christian Alexander Stephan Dette, Feliciano Giustino, Shai Mangel
The adsorption of molecular oxygen has important implications for the catalytic activity of oxide surfaces, especially for oxidative TiO2 catalysts. In the case of anatase TiO2(101), several studies have noted the importance of surface defects which stabil ...
2019Basic creep and autogenous shrinkage of Limestone Calcined Clay Cement (LC3)
The use of supplementary cementitious materials (SCM) to lower the clinker factor of cements is now commonplace, for it benefits performance, economics and ecology. This thesis focuses on ternary blends of limestone and calcined kaolinitic clays, two very ...
EPFL2019