Here are presented the results of an experimental study conducted to investigate the physical- mechanical performance of white cement bound products. White cement is a key ingredient in buildings with unplastered concrete blockwork facades of special architectural value. A metakaolin pozzolan is used instead of the more commonly used dark grey silica fume. An acrylic product is used as superplasticizer, testing different concentrations in an effort to reduce the larger amount of water required by white cement pastes. The physical-mechanical properties of the examined mortars were found to depend decisively on the poor performance of the superplasticizer that proved to be unable to reduce the water-to-cement ratio significantly. On the other hand, the metakaolins tested, especially the products obtained by the calcination of Sardinian kaolinic clays, containing thermodynamically unstable silica phases, appeared to be more effective especially at short curing times.

Metakaolin in White Cement Mortars

MELONI, PAOLA;
2007-01-01

Abstract

Here are presented the results of an experimental study conducted to investigate the physical- mechanical performance of white cement bound products. White cement is a key ingredient in buildings with unplastered concrete blockwork facades of special architectural value. A metakaolin pozzolan is used instead of the more commonly used dark grey silica fume. An acrylic product is used as superplasticizer, testing different concentrations in an effort to reduce the larger amount of water required by white cement pastes. The physical-mechanical properties of the examined mortars were found to depend decisively on the poor performance of the superplasticizer that proved to be unable to reduce the water-to-cement ratio significantly. On the other hand, the metakaolins tested, especially the products obtained by the calcination of Sardinian kaolinic clays, containing thermodynamically unstable silica phases, appeared to be more effective especially at short curing times.
2007
White Cement; Metakaolin; superplasticizer
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/17557
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
social impact