Nicodemi, Fabio (2011) Rheological study of interactions between MHEC and superplasticizers in aqueous solutions for applications in cement industry. [Tesi di dottorato] (Inedito)

[img]
Anteprima
PDF
nicodemi_fabio_24.pdf

Download (5MB) | Anteprima
[error in script] [error in script]
Tipologia del documento: Tesi di dottorato
Lingua: English
Titolo: Rheological study of interactions between MHEC and superplasticizers in aqueous solutions for applications in cement industry
Autori:
AutoreEmail
Nicodemi, Fabiofabio.nicodemi@unina.it
Data: 28 Novembre 2011
Numero di pagine: 171
Istituzione: Università degli Studi di Napoli Federico II
Dipartimento: Ingegneria chimica
Scuola di dottorato: Ingegneria industriale
Dottorato: Ingegneria chimica
Ciclo di dottorato: 24
Coordinatore del Corso di dottorato:
nomeemail
D'Anna, Andreaanddanna@unina.it
Tutor:
nomeemail
Grizzuti, Ninonino.grizzuti@unina.it
Data: 28 Novembre 2011
Numero di pagine: 171
Parole chiave: Rheology additives cement
Settori scientifico-disciplinari del MIUR: Area 09 - Ingegneria industriale e dell'informazione > ING-IND/24 - Principi di ingegneria chimica
Informazioni aggiuntive: Il corso di dottorato è stato cofinanziato dalla società C.T.G. Italcementi Group S.P.A. di Bergamo.
Depositato il: 13 Dic 2011 10:54
Ultima modifica: 30 Apr 2014 19:47
URI: http://www.fedoa.unina.it/id/eprint/8605
DOI: 10.6092/UNINA/FEDOA/8605

Abstract

Innovative cement-based materials are characterized today by rather complex formulations. In particular, when cement pastes are considered, their formulation generally includes two different types of polymers: a rheology modifier (RM) (typically a cellulose derivative), which is used to control the viscosity of the system, and a superplasticizer (SP), which is used as an anti-flocculant for the solid phase suspension. Owing to the polar nature of both polymer and solvent (water), chemico-physical interactions between the two polymers are expected. In this work, the rheology of aqueous solutions containing RMs and different types of SPs is studied. Solutions of the two components are prepared by respecting their relative proportions in the final cement formulations. Their behavior is studied by using rotational rheometry and performing viscosity and viscoelasticity measurements.

Downloads

Downloads per month over past year

Actions (login required)

Modifica documento Modifica documento