C–S–H–Polycondensate nanocomposites as effective seeding materials for Portland composite cements

C–S–H–Polycondensate nanocomposites as effective seeding materials for Portland composite cements

Preparation, properties and accelerating performance in a fly ash-limestone blended composite cement (CEM II) of three different C–S–H-polycondensate nanocomposites are presented. The nanocomposites were synthesized from Ca(NO3)2 and Na2SiO3 via co-precipitation in different solutions of acetone-for...

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Veröffentlicht in:Cement & concrete composites 2022-01, Vol.125, p.104278, Article 104278
Hauptverfasser: Theobald, Matthias, Plank, Johann
Format: Artikel
Sprache:eng
Schlagworte:
Acceleration
Calcium-silicate-hydrate (C–S–H)
Cement hydration
Nanocomposite
Nucleation
Seeding material
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Zusammenfassung:Preparation, properties and accelerating performance in a fly ash-limestone blended composite cement (CEM II) of three different C–S–H-polycondensate nanocomposites are presented. The nanocomposites were synthesized from Ca(NO3)2 and Na2SiO3 via co-precipitation in different solutions of acetone-formaldehyde-sulfite, melamine-formaldehyde-sulfite or beta-naphthalenesulfonate-formaldehyde polycondensate superplasticizers. The resulting precipitates contain nanofoils with diameters of
ISSN:0958-9465
1873-393X
DOI:10.1016/j.cemconcomp.2021.104278