The influence of superplasticiser modifications on early hydration processes
- Self-compacting concrete (SCC) differs substantially from normal concrete as regards the quantity of superplasticiser dosage. The functionality of superplasticisers, based on the polycarboxylate ether (PCE) superplasticiser customary with SCC, is nowadays very well understood at construction material research level. However, knowledge concerning pertinent correlations does not always permeate practice to an equal extent. PCEs are extremely polymorphic as opposed to earlier superplasticiser groups, which still possess a considerable proportion of the superplasticiser market. The geometry of polymers can be adjusted individually to performance characteristics required for certain uses. Yet, in selecting a superplasticiser for its specified rheological properties, a very strong influence can equally be exerted simultaneously on the subsequent hydration process. The charge density of the PCE employed also plays a key role in connection with both rheology and early hydration.
Autor*innen: | Wolfram SchmidtORCiD, Dirk Wend, Hans-Carsten KühneORCiD, Birgit MengORCiD |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Concrete plant international CPI |
Jahr der Erstveröffentlichung: | 2012 |
Verlag: | ad-media-Verl. |
Verlagsort: | Köln |
Jahrgang/Band: | 4 |
Erste Seite: | 64 |
Letzte Seite: | 69 |
Freie Schlagwörter: | Early cement hydration; Polycarboxylate ether vicat; Rheology; Shrinkage |
ISSN: | 1437-9023 |
Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Nein |