Results 21 to 30 of about 44,074,051 (232)
Nano-scale aluminium interaction in synthetic hydrated calcium silicate gel studied by 29Si MAS-NMR
Boletín de la Sociedad Española de Cerámica y Vidrio, 2023 This research consists of the fabrication of synthetic gels of hydrated calcium silicate (C-S-H gel) and hydrated calcium aluminate silicates (C-A-S-H gel) in aqueous solution oversaturated in calcium hydroxide.
Alberto Isaac Ruiz +4 more
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Effects of Aluminum Incorporation in Tobermorite Structure on Chloride Diffusion: A Molecular Dynamics Simulation Study [PDF]
Civil Engineering Infrastructures Journal, 2020 In this paper, the effects of different aluminum to silicon ratios in silicate chains of calcium silicate hydrates (C-S-H) are evaluated on the diffusion coefficient of chloride ions by molecular dynamics method.
Behnam Zehtab, Amir Tarighat
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Creep of a C-S-H Gel: Micromechanical Approach [PDF]
International Journal for Multiscale Computational Engineering, 2010 Both clays and calcium silicate hydrates(the main hydration products of Portland cements) exhibit a microstructure made up of lamellar particles. The microscopic mechanism responsible for the macroscopic creep of such materials is often described as the relative sliding of the sheets.
Sanahuja, Julien, Dormieux, Luc
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The nucleation of C–S–H via prenucleation clusters
The Journal of Chemical Physics, 2023 The nucleation and growth of calcium–silicate–hydrate (C–S–H) is of fundamental importance for the strength development and durability of the concrete. However, the nucleation process of C–S–H is still not fully understood. The present work investigates how C–S–H nucleates by analyzing the aqueous phase of hydrating tricalcium silicate (C3S) by ...
T. Sowoidnich +5 more
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An electron-deficient triosmium cluster containing the thianthrene ligand: Synthesis, structure and reactivity of [Os₃(CO)₉(μ3-η2-C₁₂H₇S₂)(μ-H)] [PDF]
, 2008 Reaction of [Os₃(CO)₁₀(CH₃CN)₂] with thianthrene at 80 °C leads to the nonacarbonyl dihydride compound [Os₃(CO)₉(μ-3,4-η²-C₁₂H₆S₂)(μ-H)₂] (1) and the 46-electron monohydride compound [Os₃(CO)₉(μ₃-η²-C₁₂H₇S₂)(μ-H)] (2).
Raha, Arun K. +7 more
core +1 more source
Stem-cell-specific endocytic degradation defects lead to intestinal dysplasia in Drosophila
Disease Models & Mechanisms, 2016 UV radiation resistance-associated gene (UVRAG) is a tumor suppressor involved in autophagy, endocytosis and DNA damage repair, but how its loss contributes to colorectal cancer is poorly understood.
Péter Nagy +3 more
doaj +1 more source
An Ideal Solid Solution Model for C–S–H [PDF]
Journal of the American Ceramic Society, 2016 A model for an ideal solid solution, developed by Nourtier‐Mazauric et al. [Oil & Gas Sci. Tech. Rev. IFP, 60 [2] (2005) 401], is applied to calcium–silicate–hydrate (C–S–H). Fitting the model to solubility data reported in the literature for C–S–H yields reasonable values for the compositions of the end‐members of the solid solution and for their ...
Jeffrey W, Bullard, George W, Scherer
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Growth of C‐S‐H phases on different metallic surfaces
Journal of Microscopy, 2022 AbstractThe influence of reinforcement, especially fibre reinforcement in ultra‐high performance concrete is strongly dependent on the bonding (adhesive, shear and friction bond) between metallic surface and cementitious matrix. As usually straight fibres are used for fibre reinforcement and, thus, no significant mechanical bonding is existent, the ...
Maximilian Schleiting +6 more
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Martha C. Nussbaum, Non per profitto. Perché le democrazie hanno bisogno degli studi umanistici
Enthymema, 2011 Review of Martha C. Nussbaum. Not for Profit: Why Democracy Needs the Humanities. Princeton: Princeton University Press, 2010.
Antonio Sotgiu
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Hanseníase virchoviana do couro cabeludo
Hansenologia Internationalis, 1976 Trinta pacientes do sexo masculino, portadores de hanseníase virchoviana em atividade, foram estudados quanto ao comprometimento do couro cabeludo. Foi feita avaliação clinica antes e após raspagem dos cabelos e 4 biopsias com "punch" em localizações ...
R. N. FLEURY +3 more
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