110. Fire spalling: Theories and experiments

Title: 110. Fire spalling: Theories and experiments
Author(s): R. Jansson, L. Boström
Paper category : conference
Book title: 5th International RILEM Symposium on Self-Compacting Concrete
Editor(s): G. De Schutter and V. Boel
Print-ISBN: 978-2-35158-047-9
e-ISBN: 978-2-35158-088-2
Publisher: RILEM Publications SARL
Publication year: 2007
Pages: 735 - 740
Total Pages: 6
Nb references: 15
Language: English

Abstract: Fire spalling can be described as the breaking off of small or large layers or pieces of concrete from the surface during fire exposure. In some rare cases spalling can refer to the explosion of a whole cross-section or the division of an entire concrete element. Numerous mechanisms have been defined to explain fire spalling and there has been some controversy concerning the correct mode of action to produce spalling. It is clear that a combination of physical, thermodynamic and chemical mechanisms are involved and the underlying mechanisms are probably case dependant.
This paper will present the most common theories of spalling together with some evidence to support or refute modes of spalling operation. The spalling considered in this paper is the type that occurs between 3-30 minutes from the start of fire exposure. Non-violent degeneration of concrete during later phases of the fire is not examined.

Online publication: 2009-06-16
Publication type : full_text
Public price (Euros): 0.00