Aggregation of Calcium Silicate Hydrate Nanoplatelets.
Identifieur interne : 002393 ( Main/Exploration ); précédent : 002392; suivant : 002394Aggregation of Calcium Silicate Hydrate Nanoplatelets.
Auteurs : Maxime Delhorme [France] ; Christophe Labbez [France] ; Martin Turesson [France] ; Eric Lesniewska [France] ; Cliff E. Woodward [Australie] ; Bo Jönsson [Suède]Source :
- Langmuir : the ACS journal of surfaces and colloids [ 1520-5827 ] ; 2016.
Abstract
We study the aggregation of calcium silicate hydrate nanoplatelets on a surface by means of Monte Carlo and molecular dynamics simulations at thermodynamic equilibrium. Calcium silicate hydrate (C-S-H) is the main component formed in cement and is responsible for the strength of the material. The hydrate is formed in early cement paste and grows to form platelets on the nanoscale, which aggregate either on dissolving cement particles or on auxiliary particles. The general result is that the experimentally observed variations in these dynamic processes generically called growth can be rationalized from interaction free energies, that is, from pure thermodynamic arguments. We further show that the surface charge density of the particles determines the aggregate structures formed by C-S-H and thus their growth modes.
DOI: 10.1021/acs.langmuir.5b03846
PubMed: 26859614
Affiliations:
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Bourgogne Franche-Comté , FR-21000 Dijon, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>ICB, UMR 6303 CNRS, Univ. Bourgogne Franche-Comté , FR-21000 Dijon</wicri:regionArea><placeName><region type="region" nuts="2">Bourgogne-Franche-Comté</region><region type="old region" nuts="2">Bourgogne</region><settlement type="city">Dijon</settlement></placeName></affiliation></author><author><name sortKey="Labbez, Christophe" sort="Labbez, Christophe" uniqKey="Labbez C" first="Christophe" last="Labbez">Christophe Labbez</name><affiliation wicri:level="3"><nlm:affiliation>ICB, UMR 6303 CNRS, Univ. Bourgogne Franche-Comté , FR-21000 Dijon, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>ICB, UMR 6303 CNRS, Univ. 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Woodward</name><affiliation wicri:level="1"><nlm:affiliation>PEMS, University of New South Wales , Canberra 260x ACT, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>PEMS, University of New South Wales , Canberra 260x ACT</wicri:regionArea><wicri:noRegion>Canberra 260x ACT</wicri:noRegion></affiliation></author><author><name sortKey="Jonsson, Bo" sort="Jonsson, Bo" uniqKey="Jonsson B" first="Bo" last="Jönsson">Bo Jönsson</name><affiliation wicri:level="1"><nlm:affiliation>Theoretical Chemistry, Chemical Center, POB 124, S-221 00 Lund, Sweden.</nlm:affiliation><country xml:lang="fr">Suède</country><wicri:regionArea>Theoretical Chemistry, Chemical Center, POB 124, S-221 00 Lund</wicri:regionArea><wicri:noRegion>S-221 00 Lund</wicri:noRegion></affiliation></author></analytic><series><title level="j">Langmuir : the ACS journal of surfaces and colloids</title><idno type="eISSN">1520-5827</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We study the aggregation of calcium silicate hydrate nanoplatelets on a surface by means of Monte Carlo and molecular dynamics simulations at thermodynamic equilibrium. Calcium silicate hydrate (C-S-H) is the main component formed in cement and is responsible for the strength of the material. The hydrate is formed in early cement paste and grows to form platelets on the nanoscale, which aggregate either on dissolving cement particles or on auxiliary particles. The general result is that the experimentally observed variations in these dynamic processes generically called growth can be rationalized from interaction free energies, that is, from pure thermodynamic arguments. We further show that the surface charge density of the particles determines the aggregate structures formed by C-S-H and thus their growth modes.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li><li>Suède</li></country><region><li>Bourgogne</li><li>Bourgogne-Franche-Comté</li></region><settlement><li>Dijon</li></settlement></list><tree><country name="France"><region name="Bourgogne-Franche-Comté"><name sortKey="Delhorme, Maxime" sort="Delhorme, Maxime" uniqKey="Delhorme M" first="Maxime" last="Delhorme">Maxime Delhorme</name></region><name sortKey="Labbez, Christophe" sort="Labbez, Christophe" uniqKey="Labbez C" first="Christophe" last="Labbez">Christophe Labbez</name><name sortKey="Lesniewska, Eric" sort="Lesniewska, Eric" uniqKey="Lesniewska E" first="Eric" last="Lesniewska">Eric Lesniewska</name><name sortKey="Turesson, Martin" sort="Turesson, Martin" uniqKey="Turesson M" first="Martin" last="Turesson">Martin Turesson</name></country><country name="Australie"><noRegion><name sortKey="Woodward, Cliff E" sort="Woodward, Cliff E" uniqKey="Woodward C" first="Cliff E" last="Woodward">Cliff E. Woodward</name></noRegion></country><country name="Suède"><noRegion><name sortKey="Jonsson, Bo" sort="Jonsson, Bo" uniqKey="Jonsson B" first="Bo" last="Jönsson">Bo Jönsson</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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