Results 231 to 240 of about 756,097 (272)

Microindentation creep of monophasic calcium–silicate–hydrates

Cement and Concrete Composites, 2014
Abstract Microindentation creep results for monophasic synthetic C–S–H (C/S = 0.6–1.5), 1.4 nm tobermorite, jennite and calcium hydroxide at 11%RH are reported. Creep results for well hydrated cement paste and C 3 S ‘composite’ systems are also described. The significance of the co-linear behavior of creep modulus functions of indentation modulus and
Nguyen, D.-T., Alizadeh, R., Beaudoin, J.J., Pourbeik, P., Raki, L.   +4 more
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The potential of calcium silicate hydrate as a carrier of ibuprofen

Expert Opinion on Drug Delivery, 2014
Calcium silicate nanostructured materials are promising drug carriers owing to their excellent biocompatibility, good bioactivity and high drug-loading capacity. In recent years, studies have been carried out on the synthesis of calcium silicate hydrate (CSH) nanostructured materials with desirable sizes and morphologies and their applications in drug ...
Ying-Jie, Zhu, Tsun-Kong, Sham
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Substituted Hydrated Calcium Silicates Obtained in Autoclave Hydration

Journal of the American Ceramic Society, 1975
Hydrated calcium silicates containing Al 3+] or Fe 3+] were prepared by autoclaving C 3 S and β‐C 2 S in the presence of C 3 A or C
GERARDO CHIOCCHIO, MARIO COLLEPARDI, RENATO TURRIZIANI   +2 more
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The effect of artificial calcium silicate hydrate on cement hydration

2022
Although alternative building materials are currently an essential topic of research and development, Portland cement-based concrete is still by far the most common construction material worldwide. The cement industry contributes significantly to the current environmental challenges by the exhaustion of CO2, resource depletion, and high energy demand ...
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Modeling Nanoindentation of Calcium Silicate Hydrate

Transportation Research Record: Journal of the Transportation Research Board, 2010
The discrete element method (DEM) was used to model nanoindentation of calcium silicate hydrate (C-S-H). The interparticle forces consisted of the traditional friction and contact forces that operate in granular materials, with the addition of nanometer-scale forces between gels, including van der Waals and electric double-layer forces.
Mei Qiang Chandler, J. F. Peters, D. Pelessone   +2 more
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Thermodynamics of Calcium Silicate Hydrates and Their Solutions

Journal of the American Ceramic Society, 1987
The solution that surrounds hydrating cement particles contains dissolved species which are important in the overall process. A method, based on the Gibbs‐Duhem equation for a three‐component system, has been developed for computing the composition of one phase from values for its equilibrium solubility in a second phase.
ELLIS M. GARTNER, HAMLIN M. JENNINGS
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Hydration of the calcium silicate phases

This chapter deals primarily with the reactions and products of hydration of C3S and β–C2S in pastes at ordinary temperatures. Some closely related studies on cement pastes are also considered. Most of the results for pastes of C3S or β–C2S are applicable also to the behaviour of those phases in cement pastes.
Ian G Richardson, HFW Taylor
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Hydration behavior of calcium phosphates is analogous to hydration behavior of calcium silicates

Cement and Concrete Research, 1999
Similarities between the hydration of calcium silicates and calcium phosphates are discussed. Calcium silicate hydration forms C-S-H, while calcium phosphate hydration forms hydroxyapatite (HAp). Both are compounds of variable composition, both incorporate water, and both exhibit high surface areas.
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New Calcium Silicate Hydrate Network

Transportation Research Record: Journal of the Transportation Research Board, 2010
The seeding effect of finely dispersed calcium silicate hydrate (C-S-H) particles on tricalcium silicate hydration and on cement was investigated. An extremely small amount of C-S-H nuclei (0.3%) significantly increases the degree of hydration of both by promoting the growth of C-S-H clusters into the pore solution instead of around the tricalcium ...
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Calcium and magnesium silicate hydrates

2014
Magnesium silicate hydrates (M-S-H) have been observed due to the reaction of magnesium sulfate containing groundwater with cements or in the interaction zone between low-pH type cement and clays. M-S-H samples synthesized in the laboratory showed that M-S-H has a variable composition within 0.7 ≤ Mg/Si ≤ 1.5.
Lothenbach, B., Nied, D., L'Hopital, E., Achiedo, G., Dauzères, A.   +4 more
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