Insight on Tricalcium Silicate Hydration and Dissolution Mechanism from Molecular Simulations
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چکیده
منابع مشابه
Understanding silicate hydration from quantitative analyses of hydrating tricalcium silicates
Silicate hydration is prevalent in natural and technological processes, such as, mineral weathering, glass alteration, zeolite syntheses and cement hydration. Tricalcium silicate (Ca3SiO5), the main constituent of Portland cement, is amongst the most reactive silicates in water. Despite its widespread industrial use, the reaction of Ca3SiO5 with water to form calcium-silicate-hydrates (C-S-H) s...
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The early age-hydration of tricalcium silicate, the main chemical compound in Portland cement, was studied in the presence of synthetic calcium silicate hydrate (C–S–H) addition having C/S ratios 1⁄4 0.8 and 1.2. Isothermal conduction calorimetry, scanning electron microscopy, differential scanning calorimetry and Si MAS NMR were employed in order to investigate events occurring during various ...
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The hydration of tricalcium silicate powder with H2O and D2O was followed at three different temperatures using isothermal calorimetry. For both types of paste, the early kinetics could be accurately modeled, from the time of mixing to a point on the downslope of the main hydration peak, with a four-parameter nucleation and growth model. Pastes made with D2O followed the same reaction path as p...
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The Journal of Physical Chemistry C is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Article Influence of Nucleation Seeding on the Hydration Mechanisms of Tricalcium Silicate and Cement Jeffrey J. Thomas, Hamlin M. Jennings, and Jeffrey J. Chen J. Phys. Chem. C, 2009, 113 (11), 4327-4334• DOI: 10.1021/jp809811w • Publication Date (Web): 19 Februar...
متن کاملHydration Kinetics and Microstructure Development of Normal and CaCl2-Accelerated Tricalcium Silicate Pastes
Microstructure development and the kinetics of hydration of pure tricalcium silicate (C3S) and CaCl2-accelerated C3S pastes were investigated by performing isothermal calorimetry and in situ small-angle neutron scattering (SANS) measurements on parallel specimens during the first few days of hydration, as well as on 28-day old specimens hydrated under the same curing conditions (water/cement ra...
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ژورنال
عنوان ژورنال: ACS Applied Materials & Interfaces
سال: 2015
ISSN: 1944-8244,1944-8252
DOI: 10.1021/acsami.5b02505