Concrete or reinforced concrete historical buildings and structures should be restored and maintained applying the same conservative criteria that are required and guaranteed for other architectural works of art. However, the usual practice of intervention is still far from the fulfillment of this approach. More than that, common forms of degradation of this class of materials remain often either unknown or disregarded, and very invasive techniques are applied for cleaning and consolidating degraded concrete components, most frequently with the substitution of large amounts of original materials. The present paper offers a brief excursus on the origins and mechanisms of different forms of degradation of concrete, from physical damage, caused by freeze/thaw cycles or hygrometric contraction, to chemical reactions with aggressive constituents of the environment, such as sulfate attack, leaching, carbonation, chloride attack or alkali-silica reaction. Methods available for conservative restoration and techniques for the monitoring and prevention of further damage of reinforced concrete structures, such as cathodic protection, desalination and realkalization, are also indicated.

The Degradation of Concrete and Reinforced Concrete: Origins, Restoration, Prevention of Further Damage / Bartuli, Cecilia. - ELETTRONICO. - (2005), pp. 1-9. (Intervento presentato al convegno art’05 - 8th International Conference on "Non Destructive Investigations and Micronalysis for the Di tenutosi a Lecce nel 2005).

The Degradation of Concrete and Reinforced Concrete: Origins, Restoration, Prevention of Further Damage

BARTULI, Cecilia
2005

Abstract

Concrete or reinforced concrete historical buildings and structures should be restored and maintained applying the same conservative criteria that are required and guaranteed for other architectural works of art. However, the usual practice of intervention is still far from the fulfillment of this approach. More than that, common forms of degradation of this class of materials remain often either unknown or disregarded, and very invasive techniques are applied for cleaning and consolidating degraded concrete components, most frequently with the substitution of large amounts of original materials. The present paper offers a brief excursus on the origins and mechanisms of different forms of degradation of concrete, from physical damage, caused by freeze/thaw cycles or hygrometric contraction, to chemical reactions with aggressive constituents of the environment, such as sulfate attack, leaching, carbonation, chloride attack or alkali-silica reaction. Methods available for conservative restoration and techniques for the monitoring and prevention of further damage of reinforced concrete structures, such as cathodic protection, desalination and realkalization, are also indicated.
2005
art’05 - 8th International Conference on "Non Destructive Investigations and Micronalysis for the Di
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
The Degradation of Concrete and Reinforced Concrete: Origins, Restoration, Prevention of Further Damage / Bartuli, Cecilia. - ELETTRONICO. - (2005), pp. 1-9. (Intervento presentato al convegno art’05 - 8th International Conference on "Non Destructive Investigations and Micronalysis for the Di tenutosi a Lecce nel 2005).
File allegati a 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/11573/51176
 Attenzione

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

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