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Spalling tests on self-compacting concrete



Title: Spalling tests on self-compacting concrete
Author(s): H. Vanwalleghem, H. Blontrock, L. Taerwe
Paper category : conference
Book title: International RILEM Symposium on Self-Compacting Concrete
Editor(s): O. Wallevik and I. Nielsson
Print-ISBN: 2-912143-42-X
e-ISBN: 2912143713
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 855 - 862
Total Pages: 8
Nb references: 1
Language: English


Abstract: Spalling of high strength concrete in fire causes a significant reduction in fire resistance of high strength concrete structural members. The main cause for spalling is the low permeability of the high strength concrete and the presence of water inside the concrete. Vapour developed inside the concrete during the fire, can hardly escape and will produce high internal stresses that lead to spalling.
Recently self-compacting concrete has been developed. For the production of self-compacting concrete fine filler materials (like silica fume or lime stone filler) are used. Referring to high strength concrete, it could be expected that these materials reduce the permeability of self-compacting concrete as compared to the permeability of a traditional concrete. In order to investigate whether self-compacting concrete is susceptible to spalling, an exploratory research project was performed on demand of the Dutch CUR-Commission C120 "Fire resistance of structural concrete". Plain self-compacted concrete cylinders (with different mixture designs, concrete strength up to about 105 N/mm²) were subjected to a fire test in order to evaluate their spalling behaviour. It followed that spalling occurred only slightly and that the degree of spalling for self-compacting concrete depends on the type of filler material.


Online publication: 2003-08-21
Publication type : abstract_only
Public price (Euros): 0.00