A study on the effects of fire-resistant coating materials on preventing the spalling of concrete and change of cement hydrates

Title: A study on the effects of fire-resistant coating materials on preventing the spalling of concrete and change of cement hydrates
Author(s): Myongshin Song, Seungmin Kang and Hyunju Kang
Paper category : conference
Book title: 2nd International RILEM Workshop on Concrete Spalling due to Fire Exposure
Editor(s): E.A.B. Koenders and F. Dehn
ISBN: 978-2-35158-118-6
e-ISBN: 978-2-35158-119-3
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 263 - 270
Total Pages: 8
Nb references: 4
Language: English

Abstract: High strength concrete, which is increasingly being used recently, is weak against fires, resulting in a spalling phenomenon due to a rise in its internal steam pressure by a high temperature. As a method of preventing this spalling phenomenon, a method of using organic fibers is being researched the most, but this method causes strength reduction of concrete and collapse of concrete structures in the end after fires. Hence this paper examined the effects of high strength concrete coated with intumescence fire-resistant materials on the spalling prevention and residual compressive strength of concrete, and investigated the thermal change property of cement hydrate after fires. As a result of experiments, it was confirmed that high strength concrete coated with intumescence fire-resistant materials not only prevented spalling but also maintained residual compressive strength at up to 96%, while concrete mixed with organic fibers prevented spalling but showed no residual compressive strength.

Online publication: 2012-01-17
Publication type : full_text
Public price (Euros): 0.00